X-Git-Url: http://www.privoxy.org/gitweb/?a=blobdiff_plain;f=doc%2Fsource%2Fuser-manual.sgml;h=5510575cef4b3256bad5c46864ca86046666155c;hb=e6e4fa04a6d7c852f266e65313f7a7d09318b846;hp=fca2a47f090c7ee3107275ba4f78f969f18f9cd6;hpb=c04de76aa275e08d0eaef6404eb543ea2379ed15;p=privoxy.git diff --git a/doc/source/user-manual.sgml b/doc/source/user-manual.sgml index fca2a47f..5510575c 100644 --- a/doc/source/user-manual.sgml +++ b/doc/source/user-manual.sgml @@ -1,158 +1,140 @@ - + + + + + + + + + + + + + + + + + +]> -
-Junkbuster User Manual +Privoxy User Manual -$Id: user-manual.sgml,v 1.23 2001/12/02 00:20:41 hal9 Exp $ +$Id: user-manual.sgml,v 1.68 2002/04/04 18:46:47 swa Exp $ - By: Junkbuster Developers + By: Privoxy Developers + - The user manual gives the users information on how to install and configure - Internet Junkbuster. Internet - Junkbuster is an application that provides privacy and - security to users of the World Wide Web. + + This is here to keep vim syntax file from breaking :/ + If I knew enough to fix it, I would. + PLEASE DO NOT REMOVE! HB: hal@foobox.net + +]]> + -You can find the latest version of the user manual at http://ijbswa.sourceforge.net/user-manual/. - + The user manual gives users information on how to install, configure and use + Privoxy. + + + + &p-intro; - Feel free to send a note to the developers at ijbswa-developers@lists.sourceforge.net. - + You can find the latest version of the user manual at http://www.privoxy.org/user-manual/. Please see the Contact section on how to contact the developers. + + + + + + + + + + + -Introduction - - Internet Junkbuster is a web proxy with advanced - filtering capabilities for protecting privacy, filtering web page content, - managing cookies, controlling access, and removing ads, banners, pop-ups and - other obnoxious Internet Junk. Junkbuster has a - very flexible configuration and can be customized to suit individual needs - and tastes. Internet Junkbuster has application - for both stand-alone systems and multi-user networks. - +Introduction - This documentation is included with the current development version of - Internet Junkbuster and is incomplete at this - point. The most up to date reference for the time being is still the comments - in the source files and in the individual configuration files. Development - of version 3.0 is currently underway, and includes many significant changes and - enhancements over earlier verions. The target release date for stable v3.0 is - December 2001. + This documentation is included with the current &p-status; version of + Privoxy, v.&p-version;soon ;-)]]>. + - Since this is a development version, some features are in the process of - being implemented. This documentation may be slightly out of sync as a - result. And there are bugs, though hopefully not many! + Since this is a &p-status; version, not all new features are well tested. This + documentation may be slightly out of sync as a result (especially with + CVS sources). And there may be bugs, though hopefully + not many! - +]]> New Features - In addition to Junkbuster's traditional features - of ad and banner blocking and cookie management, this is a list of new - features currently under development: - - - - - - - - A browser based configuration utility (WIP at - http://i.j.b). - - - - - - Modularized configuration that will allow for system wide settings, and - individual user settings. (not implemented yet) - - - - - - Blocking of annoying pop-up browser windows (previously available as a - patch). - - - - - - Support for HTTP/1.1 (partially implemented at this point). - - - - - - Support for Perl Compatible Regular Expressions in the configuration files, and - generally a more sophisticated configuration syntax over previous versions. - - - - - - Web page content filtering. - - - - - - Multi-threaded. - - - - + In addition to Internet Junkbuster's traditional + feature of ad and banner blocking and cookie management, + Privoxy provides new features: - - In addition, the configuration is more versatile overall. - + + &newfeatures; + @@ -164,78 +146,44 @@ You can find the latest version of the user manual at Installation - Junkbuster is available as raw source code, or - pre-compiled binaries. See the Junkbuster Home Page - for current release info. Junkbuster is also available - via Privoxy is available as raw source code (tarball + or via CVS), or pre-compiled binaries for various platforms. See the Privoxy Project Page for + the most up to date release information. + Privoxy is also available via CVS. - This is the recommended approach at this time. But please be aware that CVS - is constantly changing, and it may break in mysterious ways. + But + please be aware that CVS is constantly changing, and it may break in + mysterious ways. + + &supported; + + Source - - For gzipped tar archives, unpack the source: - - - - - tar xzvf ijb_source_* [.tgz or .tar.gz] - cd ijb_source_2.9.9_alpha - - - - - For retrieving the current CVS sources, you'll need the CVS - package installed first. To download CVS source: - - - - - cvs -d:pserver:anonymous@cvs.ijbswa.sourceforge.net:/cvsroot/ijbswa login - cvs -z3 -d:pserver:anonymous@cvs.ijbswa.sourceforge.net:/cvsroot/ijbswa co current - cd current - - - - - This will create a directory named current/, which will - contain the source tree. - - - Then, in either case, to build from tarball/CVS source: - - - - ./configure (--help to see options) - make (the make from gnu, gmake for *BSD) - su - make -n install (to see where all the files will go) - make install (to really install) - - + + &buildsource; + For Redhat and SuSE Linux RPM packages, see below. - - -Red Hat +Red Hat - To build Redhat RPM packages, install source as above. Then: + To build Redhat RPM packages from source, install source as above. Then: - autoheader [suggested for CVS source] - autoconf [suggested for CVS source] + autoheader + autoconf ./configure make redhat-dist @@ -246,10 +194,10 @@ You can find the latest version of the user manual at - rpm -Uvv /usr/src/redhat/RPMS/i686/junkbuster-2.9.9-1.i686.rpm + rpm -Uvv /usr/src/redhat/RPMS/i686/privoxy-&p-version;-1.i686.rpm - This will place the Junkbuster configuration - files in /etc/junkbuster/, and log files in - /var/log/junkbuster/. + This will place the Privoxy configuration + files in /etc/privoxy/, and log files in + /var/log/privoxy/. Run + ckconfig privoxy on to have + Privoxy start automatically during init. + - + -SuSE +SuSE To build SuSE RPM packages, install source as above. Then: - autoheader [suggested for CVS source] - autoconf [suggested for CVS source] + autoheader + autoconf ./configure make suse-dist @@ -290,10 +241,10 @@ You can find the latest version of the user manual at - rpm -Uvv /usr/src/packages/RPMS/i686/junkbuster-2.9.9-1.i686.rpm + rpm -Uvv /usr/src/packages/RPMS/i686/privoxy-&p-version;-1.i686.rpm - This will place the Junkbuster configuration - files in /etc/junkbuster/, and log files in - /var/log/junkbuster/. + This will place the Privoxy configuration + files in /etc/privoxy/, and log files in + /var/log/privoxy/. - + -OS/2 +OS/2 - The OS/2 version of Junkbuster requires the EMX - runtime library to be installed. The EMX runtime library is available on - the hobbes OS/2 archive, among many other locations: - http://hobbes.nmsu.edu/cgi-bin/h-search?sh=1&button=Search&key=emxrt.zip&stype=all&sort=type&dir=%2Fpub%2Fos2%2Fdev%2Femx%2Fv0.9d - - - - Junkbuster is packaged in a WarpIN self- + Privoxy is packaged in a WarpIN self- installing archive. The self-installing program will be named depending on the release version, something like: - ijbos123.exe. In order to install it, simply run - this executable or double-click on its icon and follow the WarpIN - installation panels. A shadow of the Junkbuster + privoxyos2_setup_&p-version;.exe. In order to install it, simply + run this executable or double-click on its icon and follow the WarpIN + installation panels. A shadow of the Privoxy executable will be placed in your startup folder so it will start automatically whenever OS/2 starts. - The directory you choose to install Junkbuster + The directory you choose to install Privoxy into will contain all of the configuration files. If you would like to build binary images on OS/2 yourself, you will need - a working EMX/GCC environment, plus several Unix-like tools. The Hobbes - OS/2 archive is a good place to start when building such an environment. - A set of Unix-like tools named gnupack is located here: - http://hobbes.nmsu.edu/cgi-bin/h-search?sh=1&key=gnupack&stype=all&sort=type&dir=%2Fpub%2Fos2%2Fapps - - - Once you have the source code unpacked as above, you can build the binaries - from the current/ directory: + a few Unix-like tools: autoconf, autoheader and sh. These tools will be + used to create the required config.h file, which is not part of the + source distribution because it differs based on platform. You will also + need a compiler. + The distribution has been created using IBM VisualAge compilers, but you + can use any compiler you like. GCC/EMX has the disadvantage of needing + to be single-threaded due to a limitation of EMX's implementation of the + select() socket call. + In addition to needing the source code distribution as outlined earlier, + you will want to extract the os2seutp directory from CVS: + + cvs -d:pserver:anonymous@cvs.ijbswa.sourceforge.net:/cvsroot/ijbswa login + cvs -z3 -d:pserver:anonymous@cvs.ijbswa.sourceforge.net:/cvsroot/ijbswa co os2setup + + This will create a directory named os2setup/, which will contain the + Makefile.vac makefile and os2build.cmd + which is used to completely create the binary distribution. The sequence + of events for building the executable for yourself goes something like this: + cd current + autoheader autoconf sh configure - make + cd ..\os2setup + nmake -f Makefile.vac + You will see this sequence laid out in os2build.cmd. - + -Windows +Windows Click-click. (I need help on this. Not a clue here. Also for configuration section below. HB.) - + -Other +Other Some quick notes on other Operating Systems. - For FreeBSD (and other *BSDs?), the build will need gmake + For FreeBSD (and other *BSDs?), the build will require gmake instead of the included make. gmake is available from http://www.gnu.org. The rest should be the same as above for Linux/Unix. + @@ -396,636 +355,623 @@ configuration section below. HB.) -Junkbuster Configuration - - For Unix, *BSD and Linux, all configuraton files are located in - /etc/junkbuster/ by default. For MS Windows and OS/2, - these are all in the same directory as the - Junkbuster executable. The name and number of - configuration files has changed from previous versions, and is subject to - change as development progresses. - - - - The installed defaults provide a reasonable starting point. For the - time being, there are only three default configuration files (this will - change in time): - - - - - - - - The main configuration file is named config - on Linux, Unix, BSD, and OS/2, and config.txt on - Windows. On Amiga, it is - AmiTCP:db/junkbuster/config. - - - - - - The ijb.action file is used to define various - actions relating to images, banners, pop-ups, access - restrictions, banners and cookies. There is a CGI based editor for this - file that can be accessed via http://i.j.b. This is the easiest method of - configuring actions. (Still under active development.) - - - - - - The re_filterfile file can be used to rewrite the raw - page content, including text as well as embedded HTML and JavaScript. - - - - - - - - ijb.action and re_filterfile - can use Perl style regular expressions for maximum flexibility. All files use - the # character to denote a comment. Such - lines are not processed by Junkbuster. After - making any changes, restart Junkbuster in order - for the changes to take effect. - +Quickstart to Using <application>Privoxy</application> - While under development, the configuration content is subject to change. - The below documentation may not be accurate by the time you read this. - Also, what constitutes a default setting, may change, so - please check all your configuration files on important issues. + Before launching Privoxy for the first time, you + will want to configure your browser(s) to use Privoxy + as a HTTP and HTTPS proxy. The default is localhost for the proxy address, + and port 8118 (earlier versions used port 800). This is the one required + configuration that must be done! - - - - -The Main Configuration File - - Again, the main configuration file is named config on - Linux/Unix/BSD and OS/2, and config.txt on Windows. - Configuration lines consist of an initial keyword followed by a list of - values, all separated by whitespace (any number of spaces or tabs). For - example: + + + With Netscape (and + Mozilla), this can be set under Edit + -> Preferences -> Advanced -> Proxies -> HTTP Proxy. + For Internet Explorer: Tools -> + Internet Properties -> Connections -> LAN Setting. Then, + check Use Proxy and fill in the appropriate info (Address: + localhost, Port: 8118). Include if HTTPS proxy support too. - - - - blockfile blocklist.ini - - - + After doing this, flush your browser's disk and memory caches to force a + re-reading of all pages and get rid of any ads that may be cached. You + are now ready to start enjoying the benefits of using + Privoxy. - - Indicates that the blockfile is named blocklist.ini. - - A # indicates a comment. Any part of a - line following a # is ignored, except if - the # is preceded by a - \. + Privoxy is typically started by specifying the + main configuration file to be used on the command line. Example Unix startup + command: - Thus, by placing a # at the start of an - existing configuration line, you can make it a comment and it will be treated - as if it weren't there. This is called commenting out an - option and can be useful to turn off features: If you comment out the - logfile line, junkbuster will not - log to a file at all. Watch for the default: section in each - explanation to see what happens if the option is left unset (or commented - out). + + + # /usr/sbin/privoxy /etc/privoxy/config + + - Long lines can be continued on the next line by using a - \ as the very last character. + An init script is provided for SuSE and Redhat. - There are various aspects of Junkbuster behavior - that can be tuned. + For for SuSE: /etc/rc.d/privoxy start - - - - -Defining Other Configuration Files - - Junkbuster can use a number of other files to tell it - what ads to block, what cookies to accept, etc. This section of the - configuration file tells Junkbuster where to find - all those other files. + For RedHat: /etc/rc.d/init.d/privoxy start - - On Windows, Junkbuster - looks for these files in the same directory as the executable. On Unix and - OS/2, Junkbuster looks for these files in the current - working directory. In either case, an absolute path name can be used to - avoid problems. - - When development goes modular and multiuser, the blocker, filter, and - per-user config will be stored in subdirectories of confdir. - For now, only confdir/templates is used for storing HTML - templates for CGI results. + If no configuration file is specified on the command line, + Privoxy will look for a file named + config in the current directory. Except on Win32 where + it will try config.txt. If no file is specified on the + command line and no default configuration file can be found, + Privoxy will fail to start. - - The location of the configuration files: - - - - - confdir /etc/junkbuster # No trailing /, please. - - - + The included default configuration files should give a reasonable starting + point, though may be somewhat aggressive in blocking junk. Most of the + per site configuration is done in the actions files. These + are where various cookie actions are defined, ad and banner blocking, + and other aspects of Privoxy configuration. There + are several such files included, with varying levels of aggressiveness. - The directory where all logging (i.e. logfile and - jarfile) takes place. No trailing - /, please: + You will probably want to keep an eye out for sites that require persistent + cookies, and add these to default.action as needed. By + default, most of these will be accepted only during the current browser + session, until you add them to the configuration. If you want the browser to + handle this instead, you will need to edit + default.action and disable this feature. If you use more + than one browser, it would make more sense to let + Privoxy handle this. In which case, the browser(s) + should be set to accept all cookies. - - - - logdir /var/log/junkbuster - - - + Privoxy is HTTP/1.1 compliant, but not all 1.1 + features are as yet implemented. If browsers that support HTTP/1.1 (like + Mozilla or recent versions of I.E.) experience + problems, you might try to force HTTP/1.0 compatibility. For Mozilla, look + under Edit -> Preferences -> Debug -> Networking. + Or set the +downgrade config option in + default.action. - Note that all file specifications below are relative to - the above two directories! + After running Privoxy for a while, you can + start to fine tune the configuration to suit your personal, or site, + preferences and requirements. There are many, many aspects that can + be customized. Actions (as specified in default.action) + can be adjusted by pointing your browser to + http://p.p/, + and then follow the link to edit the actions list. + (This is an internal page and does not require Internet access.) - The ijb.action file contains patterns to specify the actions to - apply to requests for each site. Default: Cookies to and from all - destinations are kept only during the current browser session (i.e. they - are not saved to disk). Popups are disabled for all sites. All sites are - filtered if re_filterfile specified. No sites are blocked. An - empty image is displayed for filtered ads and other images (formerly - tinygif). The syntax of this file is explained in detail below. + In fact, various aspects of Privoxy + configuration can be viewed from this page, including + current configuration parameters, source code version numbers, + the browser's request headers, and actions that apply + to a given URL. In addition to the default.action file + editor mentioned above, Privoxy can also + be turned on and off from this page. - - - - actionsfile ijb.action - - - + If you encounter problems, please verify it is a + Privoxy bug, by disabling + Privoxy, and then trying the same page. + Also, try another browser if possible to eliminate browser or site + problems. Before reporting it as a bug, see if there is not a configuration + option that is enabled that is causing the page not to load. You can then add + an exception for that page or site. For instance, try adding it to the + {fragile} section of default.action. + This will turn off most actions for this site. For more on troubleshooting + problem sites, see the Appendix. If a bug, please report it + to the developers (see below). - - The re_filterfile file contains content modification rules. - These rules permit powerful changes on the content of Web pages, e.g., you - could disable your favourite JavaScript annoyances, rewrite the actual - content, or just have some fun replacing Microsoft with - MicroSuck wherever it appears on a Web page. Default: No - content modification, or whatever the developers are playing with :-/ - - - - - - re_filterfile re_filterfile - - - - + + +Command Line Options - The logfile is where all logging and error messages are written. The logfile - can be useful for tracking down a problem with - Junkbuster (e.g., it's not blocking an ad you - think it should block) but in most cases you probably will never look at it. + Privoxy may be invoked with the following + command-line options: - Your logfile will grow indefinitely, and you will probably want to - periodically remove it. On Unix systems, you can do this with a cron job - (see man cron). For Redhat, a logrotate - script has been included. - + - - On SuSE Linux systems, you can place a line like /var/log/junkbuster.* - +1024k 644 nobody.nogroup in /etc/logfiles, with - the effect that cron.daily will automatically archive, gzip, and empty the - log, when it exceeds 1M size. - + + + --version + + + Print version info and exit, Unix only. + + + + + --help + + + Print a short usage info and exit, Unix only. + + + + + --no-daemon + + + Don't become a daemon, i.e. don't fork and become process group + leader, don't detach from controlling tty. Unix only. + + + + + --pidfile FILE + + + + On startup, write the process ID to FILE. Delete the + FILE on exit. Failiure to create or delete the + FILE is non-fatal. If no FILE + option is given, no PID file will be used. Unix only. + + + + + --user USER[.GROUP] + + + + After (optionally) writing the PID file, assume the user ID of + USER, and if included the GID of GROUP. Exit if the + privileges are not sufficient to do so. Unix only. + + + + + configfile + + + If no configfile is included on the command line, + Privoxy will look for a file named + config in the current directory (except on Win32 + where it will look for config.txt instead). Specify + full path to avoid confusion. + + - - Default: Log to the a file named logfile. - Comment out to disable logging. + - - - - - logfile logfile - - - - + - - The jarfile defines where - Junkbuster stores the cookies it intercepts. Note - that if you use a jarfile, it may grow quite large. Default: - Don't store intercepted cookies. - + - - - - - #jarfile jarfile - - - - + + + +<application>Privoxy</application> Configuration + + All Privoxy configuration is stored + in text files. These files can be edited with a text editor. + Many important aspects of Privoxy can + also be controlled easily with a web browser. + + + + + + + +Controlling <application>Privoxy</application> with Your Web Browser - If you specify a trustfile, - Junkbuster will only allow access to sites that - are named in the trustfile. You can also mark sites as trusted referrers, - with the effect that access to untrusted sites will be granted, if a link - from a trusted referrer was used. The link target will then be added to the - trustfile. This is a very restrictive feature that typical - users most propably want to leave disabled. Default: Disabled, don't use the - trust mechanism. + Privoxy can be reached by the special + URL http://p.p/ (or alternately + http://config.privoxy.org/), + which is an internal page. You will see the following section: + - - - - #trustfile trust - - - + + +Please choose from the following options: + + * Show information about the current configuration + * Show the source code version numbers + * Show the client's request headers. + * Show which actions apply to a URL and why + * Toggle Privoxy on or off + * Edit the actions list + + - + - If you use the trust mechanism, it is a good idea to write up some online - documentation about your blocking policy and to specify the URL(s) here. They - will appear on the page that your users receive when they try to access - untrusted content. Use multiple times for multiple URLs. Default: Don't - display links on the untrusted info page. + This should be self-explanatory. Note the last item is an editor for the + actions list, which is where much of the ad, banner, cookie, + and URL blocking magic is configured as well as other advanced features of + Privoxy. This is an easy way to adjust various + aspects of Privoxy configuration. The actions + file, and other configuration files, are explained in detail below. + Privoxy will automatically detect any changes + to these files. - - - - trust-info-url http://www.your-site.com/why_we_block.html - trust-info-url http://www.your-site.com/what_we_allow.html - - - + Toggle Privoxy On or Off is handy for sites that might + have problems with your current actions and filters, or just to test if + a site misbehaves, whether it is Privoxy + causing the problem or not. Privoxy continues + to run as a proxy in this case, but all filtering is disabled. + - + - - -Other Configuration Options + + +Configuration Files Overview - This part of the configuration file contains options that control how - Junkbuster operates. + For Unix, *BSD and Linux, all configuration files are located in + /etc/privoxy/ by default. For MS Windows, OS/2, and + AmigaOS these are all in the same directory as the + Privoxy executable. - Admin-address should be set to the email address of the proxy - administrator. It is used in many of the proxy-generated pages. Default: - fill@me.in.please. + The installed defaults provide a reasonable starting point, though possibly + aggressive by some standards. For the time being, there are only three + default configuration files (this may change in time): - - - - #admin-address fill@me.in.please - - - - + - - Proxy-info-url can be set to a URL that contains more info - about this Junkbuster installation, it's - configuration and policies. It is used in many of the proxy-generated pages - and its use is highly recommended in multi-user installations, since your - users will want to know why certain content is blocked or modified. Default: - Don't show a link to online documentation. - + + + The main configuration file is named config + on Linux, Unix, BSD, OS/2, and AmigaOS and config.txt + on Windows. + + - - - - - proxy-info-url http://www.your-site.com/proxy.html - - - + + + The default.action file is used to define various + actions relating to images, banners, pop-ups, access + restrictions, banners and cookies. There is a CGI based editor for this + file that can be accessed via http://p.p. (Other actions + files are included as well with differing levels of filtering + and blocking, e.g. basic.action.) + + + + + + The default.filter file can be used to re-write the raw + page content, including viewable text as well as embedded HTML and JavaScript, + and whatever else lurks on any given web page. + + + + - Listen-address specifies the address and port where - Junkbuster will listen for connections from your - Web browser. The default is to listen on the localhost port 8000, and - this is suitable for most users. (In your web browser, under proxy - configuration, list the proxy server as localhost and the - port as 8000). + default.action and default.filter + can use Perl style regular expressions for maximum flexibility. All files use + the # character to denote a comment. Such + lines are not processed by Privoxy. After + making any changes, there is no need to restart + Privoxy in order for the changes to take + effect. Privoxy should detect such changes + automatically. + - If you already have another service running on port 8000, or if you want to - serve requests from other machines (e.g. on your local network) as well, you - will need to override the default. The syntax is - listen-address [<ip-address>]:<port>. If you leave - out the IP address, junkbuster will bind to all - interfaces (addresses) on your machine and may become reachable from the - Internet. In that case, consider using access control lists (acl's) (see - aclfile above), or a firewall. + While under development, the configuration content is subject to change. + The below documentation may not be accurate by the time you read this. + Also, what constitutes a default setting, may change, so + please check all your configuration files on important issues. +]]> + + + + + +The Main Configuration File - For example, suppose you are running Junkbuster on - a machine which has the address 192.168.0.1 on your local private network - (192.168.0.0) and has another outside connection with a different address. - You want it to serve requests from inside only: + Again, the main configuration file is named config on + Linux/Unix/BSD and OS/2, and config.txt on Windows. + Configuration lines consist of an initial keyword followed by a list of + values, all separated by whitespace (any number of spaces or tabs). For + example: - + - listen-address 192.168.0.1:8000 + blockfile blocklist.ini - + - If you want it to listen on all addresses (including the outside - connection): + Indicates that the blockfile is named blocklist.ini. (A + default installation does not use this.) - - - - listen-address :8000 - - - + A # indicates a comment. Any part of a + line following a # is ignored, except if + the # is preceded by a + \. - If you do this, consider using ACLs (see aclfile above). Note: - you will need to point your browser(s) to the address and port that you have - configured here. Default: localhost:8000 (127.0.0.1:8000). + Thus, by placing a # at the start of an + existing configuration line, you can make it a comment and it will be treated + as if it weren't there. This is called commenting out an + option and can be useful to turn off features: If you comment out the + logfile line, Privoxy will not + log to a file at all. Watch for the default: section in each + explanation to see what happens if the option is left unset (or commented + out). - The debug option sets the level of debugging information to log in the - logfile (and to the console in the Windows version). A debug level of 1 is - informative because it will show you each request as it happens. Higher - levels of debug are probably only of interest to developers. + Long lines can be continued on the next line by using a + \ as the very last character. - - - - - debug 1 # GPC = show each GET/POST/CONNECT request - debug 2 # CONN = show each connection status - debug 4 # IO = show I/O status - debug 8 # HDR = show header parsing - debug 16 # LOG = log all data into the logfile - debug 32 # FRC = debug force feature - debug 64 # REF = debug regular expression filter - debug 128 # = debug fast redirects - debug 256 # = debug GIF deanimation - debug 512 # CLF = Common Log Format - debug 1024 # = debug kill popups - debug 4096 # INFO = Startup banner and warnings. - debug 8192 # ERROR = Non-fatal errors - - - - + + There are various aspects of Privoxy behavior + that can be tuned. + + + + + + +Defining Other Configuration Files - It is highly recommended that you enable ERROR - reporting (debug 8192), at least until the next stable release. + Privoxy can use a number of other files to tell it + what ads to block, what cookies to accept, and perform other functions. This + section of the configuration file tells Privoxy + where to find all those other files. - The reporting of FATAL errors (i.e. ones which crash - JunkBuster) is always on and cannot be disabled. + On Windows and AmigaOS, + Privoxy looks for these files in the same + directory as the executable. On Unix and OS/2, + Privoxy looks for these files in the current + working directory. In either case, an absolute path name can be used to + avoid problems. - If you want to use CLF (Common Log Format), you should set debug - 512 ONLY, do not enable anything else. + When development goes modular and multi-user, the blocker, filter, and + per-user config will be stored in subdirectories of confdir. + For now, only confdir/templates is used for storing HTML + templates for CGI results. - Multiple debug directives, are OK - they're logical-OR'd - together. + The location of the configuration files: - + - debug 15 # same as setting the first 4 listed above + confdir /etc/privoxy # No trailing /, please. - + - Default: + The directory where all logging (i.e. logfile and + jarfile) takes place. No trailing + /, please: - + - debug 1 # URLs - debug 4096 # Info - debug 8192 # Errors - *we highly recommended enabling this* + logdir /var/log/privoxy - + - Junkbuster normally uses - multi-threading, a software technique that permits it to - handle many different requests simultaneously. In some cases you may wish to - disable this -- particularly if you're trying to debug a problem. The - single-threaded option forces - Junkbuster to handle requests sequentially. - Default: Multi-threaded mode. + Note that all file specifications below are relative to + the above two directories! + + + + The default.action file contains patterns to specify the + actions to apply to requests for each site. Default: Cookies to and from all + destinations are kept only during the current browser session (i.e. they are + not saved to disk). Pop-ups are disabled for all sites. All sites are + filtered through selected sections of default.filter. No sites + are blocked. Privoxy displays a checkboard type + pattern for filtered ads and other images. The syntax of this file is + explained in detail below. Other + actions files are included, and you are free to use any of + them. They have varying degrees of aggressiveness. - + - #single-threaded + actionsfile default.action - + - toggle allows you to temporarily disable all - Junkbuster's filtering. Just set toggle - 0. + The default.filter file contains content modification rules + that use regular expressions. These rules permit powerful + changes on the content of Web pages, e.g., you could disable your favorite + JavaScript annoyances, re-write the actual displayed text, or just have some + fun replacing Microsoft with MicroSuck wherever + it appears on a Web page. Default: whatever the developers are playing with + :-/ - The Windows version of Junkbuster puts an icon in - the system tray, which also allows you to change this option. If you - right-click on that icon (or select the Options menu), one - choice is Enable. Clicking on enable toggles - Junkbuster on and off. This is useful if you want - to temporarily disable Junkbuster, e.g., to access - a site that requires cookies which you would otherwise have blocked. This can also - be toggled via a web browser at the Junkbuster - internal address of http://i.j.b on - any platform. - + Filtering requires buffering the page content, which may appear to slow down + page rendering since nothing is displayed until all content has passed + the filters. (It does not really take longer, but seems that way since + the page is not incrementally displayed.) This effect will be more noticeable + on slower connections. - - toggle 1 means Junkbuster runs - normally, toggle 0 means that - Junkbuster becomes a non-anonymizing non-blocking - proxy. Default: 1 (on). - + - toggle 1 + filterfile default.filter - + - For content filtering, i.e. the +filter and - +deanimate-gif actions, it is neccessary that - Junkbuster buffers the entire document body. - This can be potentially dangerous, since a server could just keep sending - data indefinitely and wait for your RAM to exhaust. With nasty consequences. + The logfile is where all logging and error messages are written. The logfile + can be useful for tracking down a problem with + Privoxy (e.g., it's not blocking an ad you + think it should block) but in most cases you probably will never look at it. - The buffer-limit option lets you set the maximum - size in Kbytes that each buffer may use. When the documents buffer exceeds - this size, it is flushed to the client unfiltered and no further attempt to - filter the rest of it is made. Remember that there may multiple threads - running, which might require increasing the buffer-limit - Kbytes each, unless you have enabled - single-threaded above. + Your logfile will grow indefinitely, and you will probably want to + periodically remove it. On Unix systems, you can do this with a cron job + (see man cron). For Redhat, a logrotate + script has been included. + + + + On SuSE Linux systems, you can place a line like /var/log/privoxy.* + +1024k 644 nobody.nogroup in /etc/logfiles, with + the effect that cron.daily will automatically archive, gzip, and empty the + log, when it exceeds 1M size. + + + + Default: Log to the a file named logfile. + Comment out to disable logging. - + - buffer-limit 4069 + logfile logfile - + - To enable the web-based ijb.action file editor set - enable-edit-actions to 1, or 0 to disable. Note - that you must have compiled JunkBuster with - support for this feature, otherwise this option has no effect. This - internal page can be reached at http://i.j.b. - - - - Security note: If this is enabled, anyone who can use the proxy - can edit the actions file, and their changes will affect all users. - For shared proxies, you probably want to disable this. Default: enabled. + The jarfile defines where + Privoxy stores the cookies it intercepts. Note + that if you use a jarfile, it may grow quite large. Default: + Don't store intercepted cookies. - + - enable-edit-actions 1 + #jarfile jarfile - + - Allow JunkBuster to be toggled on and off - remotely, using your web browser. Set enable-remote-toggleto - 1 to enable, and 0 to disable. Note that you must have compiled - JunkBuster with support for this feature, - otherwise this option has no effect. + If you specify a trustfile, + Privoxy will only allow access to sites that + are named in the trustfile. You can also mark sites as trusted referrers, + with the effect that access to untrusted sites will be granted, if a link + from a trusted referrer was used. The link target will then be added to the + trustfile. This is a very restrictive feature that typical + users most probably want to leave disabled. Default: Disabled, don't use the + trust mechanism. - Security note: If this is enabled, anyone who can use the proxy can toggle - it on or off (see http://i.j.b), and - their changes will affect all users. For shared proxies, you probably want to - disable this. Default: enabled. + + + + #trustfile trust + + + + + + + If you use the trust mechanism, it is a good idea to write up some on-line + documentation about your blocking policy and to specify the URL(s) here. They + will appear on the page that your users receive when they try to access + untrusted content. Use multiple times for multiple URLs. Default: Don't + display links on the untrusted info page. - + - enable-remote-toggle 1 + trust-info-url http://www.example.com/why_we_block.html + trust-info-url http://www.example.com/what_we_allow.html - + @@ -1034,514 +980,543 @@ configuration section below. HB.) + -Access Control List (ACL) - - Access controls are included at the request of some ISPs and systems - administrators, and are not usually needed by individual users. Please note - the warnings in the FAQ that this proxy is not intended to be a substitute - for a firewall or to encourage anyone to defer addressing basic security - weaknesses. - - - - If no access settings are specified, the proxy talks to anyone that - connects. If any access settings file are specified, then the proxy - talks only to IP addresses permitted somewhere in this file and not - denied later in this file. - +Other Configuration Options - Summary -- if using an ACL: + This part of the configuration file contains options that control how + Privoxy operates. - - - Client must have permission to receive service. - - - - - LAST match in ACL wins. - - - - - Default behavior is to deny service. - - - - The syntax for an entry in the Access Control List is: + Admin-address should be set to the email address of the proxy + administrator. It is used in many of the proxy-generated pages. Default: + fill@me.in.please. - + - ACTION SRC_ADDR[/SRC_MASKLEN] [ DST_ADDR[/DST_MASKLEN] ] + #admin-address fill@me.in.please - + - Where the individual fields are: + Proxy-info-url can be set to a URL that contains more info + about this Privoxy installation, it's + configuration and policies. It is used in many of the proxy-generated pages + and its use is highly recommended in multi-user installations, since your + users will want to know why certain content is blocked or modified. Default: + Don't show a link to on-line documentation. - + - ACTION = permit-access or deny-access - - SRC_ADDR = client hostname or dotted IP address - SRC_MASKLEN = number of bits in the subnet mask for the source - - DST_ADDR = server or forwarder hostname or dotted IP address - DST_MASKLEN = number of bits in the subnet mask for the target + proxy-info-url http://www.example.com/proxy.html - + - - - The field separator (FS) is whitespace (space or tab). - - - IMPORTANT NOTE: If the junkbuster is using a - forwarder (see below) or a gateway for a particular destination URL, the - DST_ADDR that is examined is the address of the forwarder - or the gateway and NOT the address of the ultimate - target. This is necessary because it may be impossible for the local - Junkbuster to determine the address of the - ultimate target (that's often what gateways are used for). + Listen-address specifies the address and port where + Privoxy will listen for connections from your + Web browser. The default is to listen on the localhost port 8118, and + this is suitable for most users. (In your web browser, under proxy + configuration, list the proxy server as localhost and the + port as 8118). - Here are a few examples to show how the ACL features work: + If you already have another service running on port 8118, or if you want to + serve requests from other machines (e.g. on your local network) as well, you + will need to override the default. The syntax is + listen-address [<ip-address>]:<port>. If you leave + out the IP address, Privoxy will bind to all + interfaces (addresses) on your machine and may become reachable from the + Internet. In that case, consider using access control lists (acl's) (see + aclfile above), or a firewall. - localhost is OK -- no DST_ADDR implies that - ALL destination addresses are OK: + For example, suppose you are running Privoxy on + a machine which has the address 192.168.0.1 on your local private network + (192.168.0.0) and has another outside connection with a different address. + You want it to serve requests from inside only: - + - permit-access localhost + listen-address 192.168.0.1:8118 - + - A silly example to illustrate permitting any host on the class-C subnet with - Junkbuster to go anywhere: + If you want it to listen on all addresses (including the outside + connection): - + - permit-access www.junkbusters.com/24 + listen-address :8118 - + - Except deny one particular IP address from using it at all: + If you do this, consider using ACLs (see aclfile above). Note: + you will need to point your browser(s) to the address and port that you have + configured here. Default: localhost:8118 (127.0.0.1:8118). + + + + The debug option sets the level of debugging information to log in the + logfile (and to the console in the Windows version). A debug level of 1 is + informative because it will show you each request as it happens. Higher + levels of debug are probably only of interest to developers. - + - deny-access ident.junkbusters.com - - + debug 1 # GPC = show each GET/POST/CONNECT request + debug 2 # CONN = show each connection status + debug 4 # IO = show I/O status + debug 8 # HDR = show header parsing + debug 16 # LOG = log all data into the logfile + debug 32 # FRC = debug force feature + debug 64 # REF = debug regular expression filter + debug 128 # = debug fast redirects + debug 256 # = debug GIF de-animation + debug 512 # CLF = Common Log Format + debug 1024 # = debug kill pop-ups + debug 4096 # INFO = Startup banner and warnings. + debug 8192 # ERROR = Non-fatal errors + + + - You can also specify an explicit network address and subnet mask. - Explicit addresses do not have to be resolved to be used. + It is highly recommended that you enable ERROR + reporting (debug 8192), at least until v3.0 is released. + +]]> + + + The reporting of FATAL errors (i.e. ones which crash + Privoxy) is always on and cannot be disabled. + + + + If you want to use CLF (Common Log Format), you should set debug + 512 ONLY, do not enable anything else. + + + + Multiple debug directives, are OK - they're logical-OR'd + together. - + - permit-access 207.153.200.0/24 + debug 15 # same as setting the first 4 listed above - + - A subnet mask of 0 matches anything, so the next line permits everyone. + Default: - + - permit-access 0.0.0.0/0 + debug 1 # URLs + debug 4096 # Info + debug 8192 # Errors - *we highly recommended enabling this* - + - Note, you cannot say: + Privoxy normally uses + multi-threading, a software technique that permits it to + handle many different requests simultaneously. In some cases you may wish to + disable this -- particularly if you're trying to debug a problem. The + single-threaded option forces + Privoxy to handle requests sequentially. + Default: Multi-threaded mode. - + - permit-access .org + #single-threaded - + - to allow all *.org domains. Every IP address listed must resolve fully. + toggle allows you to temporarily disable all + Privoxy's filtering. Just set toggle + 0. - An ISP may want to provide a Junkbuster that is - accessible by the world and yet restrict use of some of their - private content to hosts on its internal network (i.e. its own subscribers). - Say, for instance the ISP owns the Class-B IP address block 123.124.0.0 (a 16 - bit netmask). This is how they could do it: + The Windows version of Privoxy puts an icon in + the system tray, which also allows you to change this option. If you + right-click on that icon (or select the Options menu), one + choice is Enable. Clicking on enable toggles + Privoxy on and off. This is useful if you want + to temporarily disable Privoxy, e.g., to access + a site that requires cookies which you would otherwise have blocked. This can also + be toggled via a web browser at the Privoxy + internal address of http://p.p on + any platform. + + + + toggle 1 means Privoxy runs + normally, toggle 0 means that + Privoxy becomes a non-anonymizing non-blocking + proxy. Default: 1 (on). - + - permit-access 0.0.0.0/0 0.0.0.0/0 # other clients can go anywhere - # with the following exceptions: - - deny-access 0.0.0.0/0 123.124.0.0/16 # block all external requests for - # sites on the ISP's network - - permit 0.0.0.0/0 www.my_isp.com # except for the ISP's main - # web site - - permit 123.124.0.0/16 0.0.0.0/0 # the ISP's clients can go - # anywhere + toggle 1 - + - Note that if some hostnames are listed with multiple IP addresses, - the primary value returned by DNS (via gethostbyname()) is used. Default: - Anyone can access the proxy. + For content filtering, i.e. the +filter and + +deanimate-gif actions, it is necessary that + Privoxy buffers the entire document body. + This can be potentially dangerous, since a server could just keep sending + data indefinitely and wait for your RAM to exhaust. With nasty consequences. - - - - - - - - -Forwarding - - This feature allows chaining of HTTP requests via multiple proxies. - It can be used to better protect privacy and confidentiality when - accessing specific domains by routing requests to those domains - to a special purpose filtering proxy such as lpwa.com. Or to use - a caching proxy to speed up browsing. + The buffer-limit option lets you set the maximum + size in Kbytes that each buffer may use. When the documents buffer exceeds + this size, it is flushed to the client unfiltered and no further attempt to + filter the rest of it is made. Remember that there may multiple threads + running, which might require increasing the buffer-limit + Kbytes each, unless you have enabled + single-threaded above. - It can also be used in an environment with multiple networks to route - requests via multiple gateways allowing transparent access to multiple - networks without having to modify browser configurations. + + + + buffer-limit 4069 + + + - Also specified here are SOCKS proxies. Junkbuster - SOCKS 4 and SOCKS 4A. The difference is that SOCKS 4A will resolve the target - hostname using DNS on the SOCKS server, not our local DNS client. - + To enable the web-based default.action file editor set + enable-edit-actions to 1, or 0 to disable. Note + that you must have compiled Privoxy with + support for this feature, otherwise this option has no effect. This + internal page can be reached at http://p.p. + - The syntax of each line is: + Security note: If this is enabled, anyone who can use the proxy + can edit the actions file, and their changes will affect all users. + For shared proxies, you probably want to disable this. Default: enabled. - + - forward target_domain[:port] http_proxy_host[:port] - forward-socks4 target_domain[:port] socks_proxy_host[:port] http_proxy_host[:port] - forward-socks4a target_domain[:port] socks_proxy_host[:port] http_proxy_host[:port] + enable-edit-actions 1 - + - If http_proxy_host is ., then requests are not forwarded to a - HTTP proxy but are made directly to the web servers. - - - - Lines are checked in sequence, and the last match wins. + Allow Privoxy to be toggled on and off + remotely, using your web browser. Set enable-remote-toggleto + 1 to enable, and 0 to disable. Note that you must have compiled + Privoxy with support for this feature, + otherwise this option has no effect. - There is an implicit line equivalent to the following, which specifies that - anything not finding a match on the list is to go out without forwarding - or gateway protocol, like so: + Security note: If this is enabled, anyone who can use the proxy can toggle + it on or off (see http://p.p), and + their changes will affect all users. For shared proxies, you probably want to + disable this. Default: enabled. - + - forward .* . # implicit + enable-remote-toggle 1 - + + + + + + + + + +Access Control List (ACL) + + Access controls are included at the request of some ISPs and systems + administrators, and are not usually needed by individual users. Please note + the warnings in the FAQ that this proxy is not intended to be a substitute + for a firewall or to encourage anyone to defer addressing basic security + weaknesses. + + - In the following common configuration, everything goes to Lucent's LPWA, - except SSL on port 443 (which it doesn't handle): + If no access settings are specified, the proxy talks to anyone that + connects. If any access settings file are specified, then the proxy + talks only to IP addresses permitted somewhere in this file and not + denied later in this file. - - - - forward .* lpwa.com:8000 - forward :443 . - - - + Summary -- if using an ACL: + + + Client must have permission to receive service. + + + + + LAST match in ACL wins. + + + + + Default behavior is to deny service. + + + - See the FAQ for instructions on how to automate the login procedure for LPWA. - Some users have reported difficulties related to LPWA's use of - . as the last element of the domain, and have said that this - can be fixed with this: + The syntax for an entry in the Access Control List is: - + - + - forward lpwa. lpwa.com:8000 + ACTION SRC_ADDR[/SRC_MASKLEN] [ DST_ADDR[/DST_MASKLEN] ] - + - - - (NOTE: the syntax for specifiying target_domain has changed since the - previous paragraph was written -- it will not work now. More information - is welcome.) - - In this fictitious example, everything goes via an ISP's caching proxy, - except requests to that ISP: + Where the individual fields are: - + - forward .* caching.myisp.net:8000 - forward myisp.net . + ACTION = permit-access or deny-access + + SRC_ADDR = client hostname or dotted IP address + SRC_MASKLEN = number of bits in the subnet mask for the source + + DST_ADDR = server or forwarder hostname or dotted IP address + DST_MASKLEN = number of bits in the subnet mask for the target - + - - For the @home network, we're told the forwarding configuration is this: - + + The field separator (FS) is whitespace (space or tab). + - - - - forward .* proxy:8080 - - - + IMPORTANT NOTE: If Privoxy is using a + forwarder (see below) or a gateway for a particular destination URL, the + DST_ADDR that is examined is the address of the forwarder + or the gateway and NOT the address of the ultimate + target. This is necessary because it may be impossible for the local + Privoxy to determine the address of the + ultimate target (that's often what gateways are used for). - Also, we're told they insist on getting cookies and JavaScript, so you should - add home.com to the cookie file. We consider JavaScript a security risk. - Java need not be enabled. + Here are a few examples to show how the ACL features work: - In this example direct connections are made to all internal - domains, but everything else goes through Lucent's LPWA by way of the - company's SOCKS gateway to the Internet. + localhost is OK -- no DST_ADDR implies that + ALL destination addresses are OK: - + - forward-socks4 .* lpwa.com:8000 firewall.my_company.com:1080 - forward my_company.com . + permit-access localhost - + - This is how you could set up a site that always uses SOCKS but no forwarders: + A silly example to illustrate permitting any host on the class-C subnet with + Privoxy to go anywhere: - + - forward-socks4a .* . firewall.my_company.com:1080 + permit-access www.privoxy.com/24 - + - An advanced example for network administrators: - - - - If you have links to multiple ISPs that provide various special content to - their subscribers, you can configure forwarding to pass requests to the - specific host that's connected to that ISP so that everybody can see all - of the content on all of the ISPs. + Except deny one particular IP address from using it at all: - This is a bit tricky, but here's an example: + + + + deny-access ident.privoxy.com + + + - - host-a has a PPP connection to isp-a.com. And host-b has a PPP connection to - isp-b.com. host-a can run a Junkbuster proxy with - forwarding like this: + You can also specify an explicit network address and subnet mask. + Explicit addresses do not have to be resolved to be used. - + - forward .* . - forward isp-b.com host-b:8000 + permit-access 207.153.200.0/24 - + - host-b can run a Junkbuster proxy with forwarding - like this: + A subnet mask of 0 matches anything, so the next line permits everyone. - + - forward .* . - forward isp-a.com host-a:8000 + permit-access 0.0.0.0/0 - + - Now, anyone on the Internet (including users on host-a - and host-b) can set their browser's proxy to either - host-a or host-b and be able to browse the content on isp-a or isp-b. - - - - Here's another practical example, for University of Kent at - Canterbury students with a network connection in their room, who - need to use the University's Squid web cache. + Note, you cannot say: - + - forward *. ssbcache.ukc.ac.uk:3128 # Use the proxy, except for: - forward .ukc.ac.uk . # Anything on the same domain as us - forward * . # Host with no domain specified - forward 129.12.*.* . # A dotted IP on our /16 network. - forward 127.*.*.* . # Loopback address - forward localhost.localdomain . # Loopback address - forward www.ukc.mirror.ac.uk . # Specific host + permit-access .org - + - If you intend to chain Junkbuster and - squid locally, then chain as - browser -> squid -> junkbuster is the recommended way. + to allow all *.org domains. Every IP address listed must resolve fully. - Your squid configuration could then look like this: + An ISP may want to provide a Privoxy that is + accessible by the world and yet restrict use of some of their + private content to hosts on its internal network (i.e. its own subscribers). + Say, for instance the ISP owns the Class-B IP address block 123.124.0.0 (a 16 + bit netmask). This is how they could do it: - + - # Define junkbuster as parent cache - - cache_peer 127.0.0.1 parent 8000 0 no-query - - # Define ACL for protocol FTP - acl FTP proto FTP - - # Do not forward ACL FTP to junkbuster - always_direct allow FTP + permit-access 0.0.0.0/0 0.0.0.0/0 # other clients can go anywhere + # with the following exceptions: + + deny-access 0.0.0.0/0 123.124.0.0/16 # block all external requests for + # sites on the ISP's network - # Do not forward ACL CONNECT (https) to junkbuster - always_direct allow CONNECT + permit 0.0.0.0/0 www.my_isp.com # except for the ISP's main + # web site - # Forward the rest to junkbuster - never_direct allow all + permit 123.124.0.0/16 0.0.0.0/0 # the ISP's clients can go + # anywhere - + + + Note that if some hostnames are listed with multiple IP addresses, + the primary value returned by DNS (via gethostbyname()) is used. Default: + Anyone can access the proxy. + + @@ -1549,308 +1524,630 @@ configuration section below. HB.) - -Windows GUI Options - - - Junkbuster has a number of options specific to the - Windows GUI interface: - + +Forwarding - If activity-animation is set to 1, the - Junkbuster icon will animate when - Junkbuster is active. To turn off, set to 0. + This feature allows chaining of HTTP requests via multiple proxies. + It can be used to better protect privacy and confidentiality when + accessing specific domains by routing requests to those domains + to a special purpose filtering proxy such as lpwa.com. Or to use + a caching proxy to speed up browsing. - - - - activity-animation 1 - - - + It can also be used in an environment with multiple networks to route + requests via multiple gateways allowing transparent access to multiple + networks without having to modify browser configurations. - If log-messages is set to 1, - Junkbuster will log messages to the console - window: + Also specified here are SOCKS proxies. Privoxy + SOCKS 4 and SOCKS 4A. The difference is that SOCKS 4A will resolve the target + hostname using DNS on the SOCKS server, not our local DNS client. + + + + The syntax of each line is: - + - log-messages 1 + forward target_domain[:port] http_proxy_host[:port] + forward-socks4 target_domain[:port] socks_proxy_host[:port] http_proxy_host[:port] + forward-socks4a target_domain[:port] socks_proxy_host[:port] http_proxy_host[:port] - + - - If log-buffer-size is set to 1, the size of the log buffer, - i.e. the amount of memory used for the log messages displayed in the - console window, will be limited to log-max-lines (see below). + + If http_proxy_host is ., then requests are not forwarded to a + HTTP proxy but are made directly to the web servers. - Warning: Setting this to 0 will result in the buffer to grow infinitely and - eat up all your memory! + Lines are checked in sequence, and the last match wins. + + + + There is an implicit line equivalent to the following, which specifies that + anything not finding a match on the list is to go out without forwarding + or gateway protocol, like so: - + - log-buffer-size 1 + forward .* . # implicit - + - log-max-lines is the maximum number of lines held - in the log buffer. See above. + In the following common configuration, everything goes to Lucent's LPWA, + except SSL on port 443 (which it doesn't handle): - + - log-max-lines 200 + forward .* lpwa.com:8000 + forward :443 . - + - If log-highlight-messages is set to 1, - Junkbuster will highlight portions of the log - messages with a bold-faced font: + + Some users have reported difficulties related to LPWA's use of + . as the last element of the domain, and have said that this + can be fixed with this: - + - + - log-highlight-messages 1 + forward lpwa. lpwa.com:8000 - + + + + (NOTE: the syntax for specifying target_domain has changed since the + previous paragraph was written -- it will not work now. More information + is welcome.) + - The font used in the console window: + In this fictitious example, everything goes via an ISP's caching proxy, + except requests to that ISP: - + - log-font-name Comic Sans MS + forward .* caching.myisp.net:8000 + forward myisp.net . - + - Font size used in the console window: + For the @home network, we're told the forwarding configuration is this: + - + - log-font-size 8 + forward .* proxy:8080 - + - - show-on-task-bar controls whether or not - Junkbuster will appear as a button on the Task bar - when minimized: + + Also, we're told they insist on getting cookies and JavaScript, so you should + allow cookies from home.com. We consider JavaScript a potential security risk. + Java need not be enabled. + + + + In this example direct connections are made to all internal + domains, but everything else goes through Lucent's LPWA by way of the + company's SOCKS gateway to the Internet. - + - show-on-task-bar 0 + forward-socks4 .* lpwa.com:8000 firewall.my_company.com:1080 + forward my_company.com . - + - If close-button-minimizes is set to 1, the Windows close - button will minimize Junkbuster instead of closing - the program (close with the exit option on the File menu). + This is how you could set up a site that always uses SOCKS but no forwarders: - + - close-button-minimizes 1 + forward-socks4a .* . firewall.my_company.com:1080 - + - The hide-console option is specific to the MS-Win console - version of JunkBuster. If this option is used, - Junkbuster will disconnect from and hide the - command console. + An advanced example for network administrators: + + + + If you have links to multiple ISPs that provide various special content to + their subscribers, you can configure forwarding to pass requests to the + specific host that's connected to that ISP so that everybody can see all + of the content on all of the ISPs. + + + + This is a bit tricky, but here's an example: + + + + + host-a has a PPP connection to isp-a.com. And host-b has a PPP connection to + isp-b.com. host-a can run a Privoxy proxy with + forwarding like this: - + - #hide-console + forward .* . + forward isp-b.com host-b:8118 - + - - + + host-b can run a Privoxy proxy with forwarding + like this: + - + + + + + forward .* . + forward isp-a.com host-a:8118 + + + + + + Now, anyone on the Internet (including users on host-a + and host-b) can set their browser's proxy to either + host-a or host-b and be able to browse the content on isp-a or isp-b. + - - -The Actions File + + Here's another practical example, for University of Kent at + Canterbury students with a network connection in their room, who + need to use the University's Squid web cache. + - The ijb.action file (formerly - actionsfile) is used to define what actions - Junkbuster takes, and thus determines how images, - cookies and various other aspects of HTTP content and transactions are - handled. Images can be anything you want, including ads, banners, or just - some obnoxious image that you would rather not see. Cookies can be accepted - or rejected, or accepted only during the current browser session (i.e. - not written to disk). + + + + forward *. ssbcache.ukc.ac.uk:3128 # Use the proxy, except for: + forward .ukc.ac.uk . # Anything on the same domain as us + forward * . # Host with no domain specified + forward 129.12.*.* . # A dotted IP on our /16 network. + forward 127.*.*.* . # Loopback address + forward localhost.localdomain . # Loopback address + forward www.ukc.mirror.ac.uk . # Specific host + + + - To determine which actions apply to a request, the URL of the request is - compared to all patterns in this file. Every time it matches, the list of - applicable actions for the URL is incrementally updated. You can trace - this process by visiting http://i.j.b/show-url-info. + If you intend to chain Privoxy and + squid locally, then chain as + browser -> squid -> privoxy is the recommended way. - The actions file can be edited with a browser by loading - http://i.j.b/, and then select - Edit Actions. +Your squid configuration could then look like this (assuming that the IP +address of the box is 192.168.0.1 ): - There are four types of lines in this file: comments (begin with a - # character), actions, aliases and patterns, all of which are - explained below, as well as the configuration file syntax that - Junkbuster understands. + + + + # Define Privoxy as parent cache + + cache_peer 192.168.0.1 parent 8118 0 no-query + + # don't listen to the whole world + http_port 192.168.0.1:3128 + + # define the local lan + acl mylocallan src 192.168.0.1-192.168.0.5/255.255.255.255 + + # grant access for http to local lan + http_access allow mylocallan + + # Define ACL for protocol FTP + acl FTP proto FTP + + # Do not forward ACL FTP to privoxy + always_direct allow FTP + + # Do not forward ACL CONNECT (https) to privoxy + always_direct allow CONNECT + # Forward the rest to privoxy + never_direct allow all + + + + + + + + -URL Domain and Path Syntax +Windows GUI Options + - Generally, a pattern has the form <domain>/<path>, where both the - <domain> and <path> part are optional. If you only specify a - domain part, the / can be left out: + Privoxy has a number of options specific to the + Windows GUI interface: - www.example.com - is a domain only pattern and will match any request to - www.example.com. + If activity-animation is set to 1, the + Privoxy icon will animate when + Privoxy is active. To turn off, set to 0. - www.example.com/ - means exactly the same. + + + + activity-animation 1 + + + - www.example.com/index.html - matches only the single - document /index.html on www.example.com. + If log-messages is set to 1, + Privoxy will log messages to the console + window: - /index.html - matches the document /index.html, regardless of - the domain. + + + + log-messages 1 + + + - - index.html - matches nothing, since it would be - interpreted as a domain name and there is no top-level domain called - .html. + + If log-buffer-size is set to 1, the size of the log buffer, + i.e. the amount of memory used for the log messages displayed in the + console window, will be limited to log-max-lines (see below). - The matching of the domain part offers some flexible options: if the - domain starts or ends with a dot, it becomes unanchored at that end. - For example: + Warning: Setting this to 0 will result in the buffer to grow infinitely and + eat up all your memory! - .example.com - matches any domain that ENDS in - .example.com. + + + + log-buffer-size 1 + + + - www. - matches any domain that STARTS with - www. + log-max-lines is the maximum number of lines held + in the log buffer. See above. - Additionally, there are wildcards that you can use in the domain names - themselves. They work pretty similar to shell wildcards: * - stands for zero or more arbitrary characters, ? stands for - any single character. And you can define charachter classes in square - brackets and they can be freely mixed: + + + + log-max-lines 200 + + + - ad*.example.com - matches adserver.example.com, - ads.example.com, etc but not sfads.example.com. + If log-highlight-messages is set to 1, + Privoxy will highlight portions of the log + messages with a bold-faced font: - *ad*.example.com - matches all of the above, and then some. + + + + log-highlight-messages 1 + + + - .?pix.com - matches www.ipix.com, - pictures.epix.com, a.b.c.d.e.upix.com, etc. + The font used in the console window: - www[1-9a-ez].example.com - matches www1.example.com, - www4.example.com, wwwd.example.com, - wwwz.example.com, etc., but not - wwww.example.com. + + + + log-font-name Comic Sans MS + + + - If Junkbuster was compiled with - pcre support (default), Perl compatible regular expressions - can be used. See the pcre/docs/ direcory or man - perlre (also available on http://www.perldoc.com/perl5.6/pod/perlre.html) - for details. A brief discussion of regular expressions is in the - Appendix. For instance: + Font size used in the console window: + + + + + + + log-font-size 8 + + + + + + + show-on-task-bar controls whether or not + Privoxy will appear as a button on the Task bar + when minimized: + + + + + + + show-on-task-bar 0 + + + + + + + If close-button-minimizes is set to 1, the Windows close + button will minimize Privoxy instead of closing + the program (close with the exit option on the File menu). + + + + + + + close-button-minimizes 1 + + + + + + + The hide-console option is specific to the MS-Win console + version of Privoxy. If this option is used, + Privoxy will disconnect from and hide the + command console. + + + + + + + #hide-console + + + + + + + + + + + + + +The Actions File + + + The default.action file (formerly + actionsfile or ijb.action) is used + to define what actions Privoxy takes, and thus + determines how ad images, cookies and various other aspects of HTTP content + and transactions are handled. These can be accepted or rejected for all + sites, or just those sites you choose. See below for a complete list of + actions. + + + Anything you want can blocked, including ads, banners, or just some obnoxious + URL that you would rather not see. Cookies can be accepted or rejected, or + accepted only during the current browser session (i.e. not written to disk). + Changes to default.action should be immediately visible + to Privoxy without the need to restart. + + + + Note that some sites may misbehave, or possibly not work at all with some + actions. This may require some tinkering with the rules to get the most + mileage of Privoxy's features, and still be + able to see and enjoy just what you want to. There is no general rule of + thumb on these things. There just are too many variables, and sites are + always changing. + + + + + The easiest way to edit the actions file is with a browser by + loading http://p.p/, and then select + Edit Actions List. A text editor can also be used. + + + + To determine which actions apply to a request, the URL of the request is + compared to all patterns in this file. Every time it matches, the list of + applicable actions for the URL is incrementally updated. You can trace + this process by visiting http://p.p/show-url-info. + + + + + There are four types of lines in this file: comments (begin with a + # character), actions, aliases and patterns, all of which are + explained below, as well as the configuration file syntax that + Privoxy understands. + + + + + + +URL Domain and Path Syntax + + Generally, a pattern has the form <domain>/<path>, where both the + <domain> and <path> part are optional. If you only specify a + domain part, the / can be left out: + + + + www.example.com - is a domain only pattern and will match any request to + www.example.com. + + + + www.example.com/ - means exactly the same. + + + + www.example.com/index.html - matches only the single + document /index.html on www.example.com. + + + + /index.html - matches the document /index.html, + regardless of the domain. So would match any page named index.html + on any site. + + + + index.html - matches nothing, since it would be + interpreted as a domain name and there is no top-level domain called + .html. + + + + The matching of the domain part offers some flexible options: if the + domain starts or ends with a dot, it becomes unanchored at that end. + For example: + + + + .example.com - matches any domain or sub-domain that + ENDS in .example.com. + + + + www. - matches any domain that STARTS with + www. + + + + Additionally, there are wild-cards that you can use in the domain names + themselves. They work pretty similar to shell wild-cards: * + stands for zero or more arbitrary characters, ? stands for + any single character. And you can define character classes in square + brackets and they can be freely mixed: + + + + ad*.example.com - matches adserver.example.com, + ads.example.com, etc but not sfads.example.com. + + + + *ad*.example.com - matches all of the above, and then some. + + + + .?pix.com - matches www.ipix.com, + pictures.epix.com, a.b.c.d.e.upix.com, etc. + + + + www[1-9a-ez].example.com - matches www1.example.com, + www4.example.com, wwwd.example.com, + wwwz.example.com, etc., but not + wwww.example.com. + + + + If Privoxy was compiled with + pcre support (the default), Perl compatible regular expressions + can be used. These are more flexible and powerful than other types + of regular expressions. See the pcre/docs/ directory or man + perlre (also available on http://www.perldoc.com/perl5.6/pod/perlre.html) + for details. A brief discussion of regular expressions is in the + Appendix. For instance: @@ -1903,12 +2200,12 @@ Removed references to Win32. HB 09/23/01 - + {+name} # enable this action {-name} # disable this action - + @@ -1916,16 +2213,16 @@ Removed references to Win32. HB 09/23/01 - Parameterized (e.g. +/-hide-user-agent): + parameterized (e.g. +/-hide-user-agent): - + {+name{param}} # enable action and set parameter to param {-name} # disable action - + @@ -1936,13 +2233,13 @@ Removed references to Win32. HB 09/23/01 - + {+name{param}} # enable action and add parameter param {-name{param}} # remove the parameter param {-name} # disable this action totally - + @@ -1952,20 +2249,22 @@ Removed references to Win32. HB 09/23/01 If nothing is specified in this file, no actions are taken. - So in this case JunkBuster would just be a + So in this case Privoxy would just be a normal, non-blocking, non-anonymizing proxy. You must specifically enable the privacy and blocking features you need (although the - provided default ijb.action file will + provided default default.action file will give a good starting point). - Later defined actions always over-ride earlier ones. For multi-valued - actions, the actions are applied in the order they are specified. + Later defined actions always over-ride earlier ones. So exceptions + to any rules you make, should come in the latter part of the file. For + multi-valued actions, the actions are applied in the order they are + specified. - The list of valid Junkbuster actions are: + The list of valid Privoxy actions are: @@ -1978,11 +2277,11 @@ Removed references to Win32. HB 09/23/01 - + +add-header{Name: value} - + @@ -1990,15 +2289,19 @@ Removed references to Win32. HB 09/23/01 - Block this URL totally. + Block this URL totally. In a default installation, a blocked + URL will result in bright red banner that says BLOCKED, + with a reason why it is being blocked, and an option to see it anyway. + The page displayed for this is the blocked template + file. - + +block - + @@ -2010,18 +2313,18 @@ Removed references to Win32. HB 09/23/01 This will also shrink the images considerably (in bytes, not pixels!). If the option first is given, the first frame of the animation is used as the replacement. If last is given, the last frame - of the animation is used instead, which propably makes more sense for most + of the animation is used instead, which probably makes more sense for most banner animations, but also has the risk of not showing the entire last frame (if it is only a delta to an earlier frame). - + +deanimate-gifs{last} +deanimate-gifs{first} - + @@ -2031,16 +2334,16 @@ Removed references to Win32. HB 09/23/01 +downgrade will downgrade HTTP/1.1 client requests to HTTP/1.0 and downgrade the responses as well. Use this action for servers that use HTTP/1.1 protocol features that - Junkbuster doesn't handle well yet. HTTP/1.1 + Privoxy doesn't handle well yet. HTTP/1.1 is only partially implemented. Default is not to downgrade requests. - + +downgrade - + @@ -2051,11 +2354,11 @@ Removed references to Win32. HB 09/23/01 will link to some script on their own server, giving the destination as a parameter, which will then redirect you to the final target. URLs resulting from this scheme typically look like: - http://some.place/some_script?http://some.where-else. + http://some.place/some_script?http://some.where-else. Sometimes, there are even multiple consecutive redirects encoded in the - URL. These redirections via scripts make your web browing more traceable, + URL. These redirections via scripts make your web browsing more traceable, since the server from which you follow such a link can see where you go to. Apart from that, valuable bandwidth and time is wasted, while your browser ask the server for one redirect after the other. Plus, it feeds the @@ -2063,34 +2366,99 @@ Removed references to Win32. HB 09/23/01 The +fast-redirects option enables interception of these - requests by Junkbuster, who will cut off all but - the last valid URL in the request and send a local redirect back to your - browser without contacting the remote site. + types of requests by Privoxy, who will cut off + all but the last valid URL in the request and send a local redirect back to + your browser without contacting the intermediate site(s). - + +fast-redirects - + - Filter the website through the re_filterfile: - + Apply the filters in the section_header + section of the default.filter file to the site(s). + default.filter sections are grouped according to like + functionality. Filters can be used to + re-write any of the raw page content. This is a potentially a + very powerful feature! + + - + - +filter{filename} + +filter{section_header} - + + + + Filter sections that are pre-defined in the supplied + default.filter include: + + +
+ + + html-annoyances: Get rid of particularly annoying HTML abuse. + + + + + js-annoyances: Get rid of particularly annoying JavaScript abuse + + + + + no-poups: Kill all popups in JS and HTML + + + + + frameset-borders: Give frames a border + + + + + webbugs: Squish WebBugs (1x1 invisible GIFs used for user tracking) + + + + + no-refresh: Automatic refresh sucks on auto-dialup lines + + + + + fun: Text replacements for subversive browsing fun! + + + + + nimda: Remove (virus) Nimda code. + + + + + banners-by-size: Kill banners by size + + + + + crude-parental: Kill all web pages that contain the words "sex" or "warez" + + +
+ @@ -2099,11 +2467,11 @@ Removed references to Win32. HB 09/23/01 - + +hide-forwarded - + @@ -2116,12 +2484,12 @@ Removed references to Win32. HB 09/23/01 - + +hide-from{block} +hide-from{spam@sittingduck.xqq} - + @@ -2131,17 +2499,17 @@ Removed references to Win32. HB 09/23/01 Don't send the Referer: (sic) header to the web site. You can block it, forge a URL to the same server as the request (which is preferred because some sites will not send images otherwise) or set it to a - constant string of your choice. + constant, user defined string of your choice. - + +hide-referer{block} +hide-referer{forge} +hide-referer{http://nowhere.com} - + @@ -2155,11 +2523,11 @@ Removed references to Win32. HB 09/23/01 - + +hide-referrer{...} - + @@ -2173,24 +2541,24 @@ Removed references to Win32. HB 09/23/01 - + +hide-user-agent{Mozilla (X11; I; Linux 2.0.32 i586)} - + @@ -2211,41 +2579,54 @@ Removed references to Win32. HB 09/23/01 Treat this URL as an image. This only matters if it's also +blocked, - in which case a blocked image can be sent rather than a HTML page. - See +image-blocker{} below for the control over what is actually sent. + in which case a blocked image can be sent rather than a HTML page. + See +image-blocker{} below for the control over what is actually sent. + If you want invisible ads, they should be defined as + images and blocked. And also, + image-blocker should be set to blank. Note you + cannot treat HTML pages as images in most cases. For instance, frames + require an HTML page to display. So a frame that is an ad, cannot be + treated as an image. Forcing an image in this + situation just will not work. - + +image - + - - Decides what to do with URLs that end up tagged with {+block - +image}. There are 4 options. -image-blocker will - send a HTML blocked page, usually resulting in a - broken image icon. +image-blocker{logo} will - send a JunkBuster image. - +image-blocker{blank} will send a 1x1 transparent GIF image. - And finally, +image-blocker{http://xyz.com} will send a HTTP - temporary redirect to the specified image. This has the advantage of the - icon being being cached by the browser, which will speed up the display. + Decides what to do with URLs that end up tagged with {+block + +image}, e.g an advertizement. There are five options. + -image-blocker will send a HTML blocked page, + usually resulting in a broken image icon. + + + ++image-blocker{blank} will send a 1x1 transparent GIF +image. And finally, +image-blocker{http://xyz.com} will send a +HTTP temporary redirect to the specified image. This has the advantage of the +icon being being cached by the browser, which will speed up the display. ++image-blocker{pattern} will send a checkboard type pattern + + + - + - +image-blocker{logo} + +image-blocker{blank} - +image-blocker{http://i.j.b/send-banner} + +image-blocker{pattern} + +image-blocker{http://p.p/send-banner} - + @@ -2253,7 +2634,7 @@ Removed references to Win32. HB 09/23/01 By default (i.e. in the absence of a +limit-connect - action), Junkbuster will only allow CONNECT + action), Privoxy will only allow CONNECT requests to port 443, which is the standard port for https as a precaution. @@ -2276,14 +2657,14 @@ Removed references to Win32. HB 09/23/01 - + +limit-connect{443} # This is the default and need no be specified. +limit-connect{80,443} # Ports 80 and 443 are OK. +limit-connect{-3, 7, 20-100, 500-} # Port less than 3, 7, 20 to 100 #and above 500 are OK. - + @@ -2293,19 +2674,19 @@ Removed references to Win32. HB 09/23/01 +no-compression prevents the website from compressing the data. Some websites do this, which can be a problem for - Junkbuster, since +filter, + Privoxy, since +filter, +no-popup and +gif-deanimate will not work on compressed data. This will slow down connections to those websites, - though. Default is nocompression is turned on. + though. Default is no-compression is turned on. - + +nocompression - + @@ -2319,11 +2700,11 @@ Removed references to Win32. HB 09/23/01 - + +no-cookies-keep - + @@ -2334,11 +2715,11 @@ Removed references to Win32. HB 09/23/01 - + +no-cookies-read - + @@ -2349,11 +2730,11 @@ Removed references to Win32. HB 09/23/01 - + +no-cookies-set - + @@ -2366,12 +2747,12 @@ Removed references to Win32. HB 09/23/01 - + +no-popup +no-popups - + @@ -2386,11 +2767,11 @@ Removed references to Win32. HB 09/23/01 - + +vanilla-wafer - + @@ -2402,11 +2783,11 @@ Removed references to Win32. HB 09/23/01 - + +wafer{name=value} - + @@ -2429,15 +2810,15 @@ Removed references to Win32. HB 09/23/01 - + - # Turn off all persistant cookies + # Turn off all persistent cookies { +no-cookies-read } { +no-cookies-set } # Allow cookies for this browser session ONLY { +no-cookies-keep } - # Execeptions to the above, sites that benefit from persistant cookies + # Exceptions to the above, sites that benefit from persistent cookies { -no-cookies-read } { -no-cookies-set } { -no-cookies-keep } @@ -2452,7 +2833,7 @@ Removed references to Win32. HB 09/23/01 .sourceforge.net .sf.net - + @@ -2462,7 +2843,7 @@ Removed references to Win32. HB 09/23/01 - + # Turn them off! {+fast-redirects} @@ -2472,38 +2853,42 @@ Removed references to Win32. HB 09/23/01 www.ukc.ac.uk/cgi-bin/wac\.cgi\? login.yahoo.com - + - Turn on page filtering, with one exception for sourceforge: - + Turn on page filtering according to rules in the defined sections + of refilterfile, and make one exception for + sourceforge: + - + - # Run everything through the default filter file (re_filterfile): - {+filter} - - # But please don't re_filter code from sourceforge! + # Run everything through the filter file, using only the + # specified sections: + +filter{html-annoyances} +filter{js-annoyances} +filter{no-popups}\ + +filter{webbugs} +filter{nimda} +filter{banners-by-size} + + # Then disable filtering of code from sourceforge! {-filter} .cvs.sourceforge.net - + - Now some URLs that we want blocked, ie we won't see them. - Many of these use regular expressions that will expand to match multiple - URLs: + Now some URLs that we want blocked (normally generates + the blocked banner). Many of these use regular expressions + that will expand to match multiple URLs: - + # Blocklist: {+block} @@ -2551,10 +2936,19 @@ Removed references to Win32. HB 09/23/01 /.*/adlib/server\.cgi /autoads/ - + + + Note that many of these actions have the potential to cause a page to + misbehave, possibly even not to display at all. There are many ways + a site designer may choose to design his site, and what HTTP header + content he may depend on. There is no way to have hard and fast rules + for all sites. See the Appendix + for a brief example on troubleshooting actions. + + @@ -2564,7 +2958,7 @@ Removed references to Win32. HB 09/23/01 Aliases - Custom actions, known to Junkbuster + Custom actions, known to Privoxy as aliases, can be defined by combining other actions. These can in turn be invoked just like the built-in actions. Currently, an alias can contain any character except space, tab, =, @@ -2572,7 +2966,7 @@ Removed references to Win32. HB 09/23/01 z, 0-9, +, and -. Alias names are not case sensitive, and must be defined before anything else in the - ijb.actionfile ! And there can only be one set of + default.actionfile! And there can only be one set of aliases defined. @@ -2582,9 +2976,9 @@ Removed references to Win32. HB 09/23/01 - + - # Useful customer aliases we can use later. These must come first! + # Useful custom aliases we can use later. These must come first! {{alias}} +no-cookies = +no-cookies-set +no-cookies-read -no-cookies = -no-cookies-set -no-cookies-read @@ -2599,7 +2993,7 @@ Removed references to Win32. HB 09/23/01 c3 = +no-cookies-set -no-cookies-read #... etc. Customize to your heart's content. - + @@ -2610,7 +3004,7 @@ Removed references to Win32. HB 09/23/01 - + # These sites are very complex and require # minimal interference. @@ -2631,10 +3025,17 @@ Removed references to Win32. HB 09/23/01 .dabs.com .overclockers.co.uk - + + + The shop and fragile aliases are often used for + problem sites that require most actions to be disabled + in order to function properly. + + + @@ -2645,16 +3046,30 @@ Removed references to Win32. HB 09/23/01 The Filter File - The filter file defines what filtering of web pages - Junkbuster does. The default filter file is - re_filterfile, located in the config directory. In this - file, any document content, whether viewable text or - embedded non-visible content, can be changed. + Any web page can be dynamically modified with the filter file. This + modification can be removal, or re-writing, of any web page content, + including tags and non-visible content. The default filter file is + default.filter, located in the config directory. + + + + This is potentially a very powerful feature, and requires knowledge of both + regular expression and HTML in order create custom + filters. But, there are a number of useful filters included with + Privoxy for many common situations. + + + + The included example file is divided into sections. Each section begins + with the FILTER keyword, followed by the identifier + for that section, e.g. FILTER: webbugs. Each section performs + a similar type of filtering, such as html-annoyances. This file uses regular expressions to alter or remove any string in the - target page. Some examples from the included default re_filterfile: + target page. The expressions can only operate on one line at a time. Some + examples from the included default default.filter: @@ -2664,193 +3079,110 @@ Removed references to Win32. HB 09/23/01 - + - # The status bar is for displaying link targets, not pointless buzzwords. - # Again, check it out on http://www.airport-cgn.de/. - s/status='.*?';*//ig + FILTER: html-annoyances + + # New browser windows should be resizeable and have a location and status + # bar. Make it so. + # + s/resizable="?(no|0)"?/resizable=1/ig s/noresize/yesresize/ig + s/location="?(no|0)"?/location=1/ig s/status="?(no|0)"?/status=1/ig + s/scrolling="?(no|0|Auto)"?/scrolling=1/ig + s/menubar="?(no|0)"?/menubar=1/ig + + # The <BLINK> tag was a crime! + # + s*<blink>|</blink>**ig + + # Is this evil? + # + #s/framespacing="?(no|0)"?//ig + #s/margin(height|width)=[0-9]*//gi - + Just for kicks, replace any occurrence of Microsoft with - MicroSuck: + MicroSuck, and have a little fun with topical buzzwords: - + + FILTER: fun + s/microsoft(?!.com)/MicroSuck/ig + + # Buzzword Bingo: + # + s/industry-leading|cutting-edge|award-winning/<font color=red><b>BINGO!</b></font>/ig - + - Kill those auto-refresh tags: + Kill those pesky little web-bugs: - + - # Kill refresh tags. I like to refresh myself. Manually. - # check it out on http://www.airport-cgn.de/ and go to the arrivals page. - # - s/<meta[^>]*http-equiv[^>]*refresh.*URL=([^>]*?)"?>/<link rev="x-refresh" href=$1>/i - s/<meta[^>]*http-equiv="?page-enter"?[^>]*content=[^>]*>/<!--no page enter for me-->/i + # webbugs: Squish WebBugs (1x1 invisible GIFs used for user tracking) + FILTER: webbugs + + s/<img\s+[^>]*?(width|height)\s*=\s*['"]?1\D[^>]*?(width|height)\s*=\s*['"]?1(\D[^>]*?)?>/<!-- Squished WebBug -->/sig - + - + - -Quickstart to Using Junkbuster - - Install package, then run and enjoy! Junbuster - accepts only one command line option -- the configuration file to be - used. Example Unix startup command: - - - - - # /usr/sbin/junkbuster /etc/junkbuster/config - - - - - An init script is provided for SuSE and Redhat. - + + +Templates -For for SuSE: /etc/rc.d/junkbuster start + When Privoxy displays one of its internal + pages, such as a 404 Not Found error page, it uses the appropriate template. + On Linux, BSD, and Unix, these are located in + /etc/privoxy/templates by default. These may be + customized, if desired. - -For RedHat: /etc/rc.d/init.d/junkbuster start + The default Blocked banner page with the bright red top + banner, is called just blocked. This + may be customized or replaced with something else if desired. + + + - - If no configuration file is specified on the command line, - Junkbuster will look for a file named - config in the current directory. Except on Amiga where - it will look for AmiTCP:db/junkbuster/config and Win32 - where it will try config.txt. If no file is specified - on the command line and no default configuration file can be found, - Junkbuster will fail to start. - + - - Be sure your browser is set to use the proxy which is by default at - localhost, port 8000. With Netscape (and - Mozilla), this can be set under Edit - -> Preferences -> Advanced -> Proxies -> HTTP Proxy. - For Internet Explorer: Tools > - Internet Properties -> Connections -> LAN Setting. Then, - check Use Proxy and fill in the appropriate info (Address: - localhost, Port: 8000). Include if HTTPS proxy support too. - - - The included default configuration files should give a reasonable starting - point, though may be somewhat aggressive in blocking junk. You will probably - want to keep an eye out for sites that require persistant cookies, and add these to - ijb.action as needed. By default, most of these will - be accepted only during the current browser session, until you add them to - the configuration. If you want the browser to handle this instead, you will - need to edit ijb.action and disable this feature. If you - use more than one browser, it would make more sense to let - Junkbuster handle this. In which case, the - browser(s) should be set to accept all cookies. - - - If a particular site shows problems loading properly, try adding it - to the {fragile} section of - ijb.action. This will turn off most actions for - this site. - + - - HTTP/1.1 support is not fully implemented. If browsers that - support HTTP/1.1 (like Mozilla or recent versions - of I.E.) experience problems, you might try to force HTTP/1.0 compatiblity. - For Mozilla, look under Edit -> Preferences -> Debug -> - Networking. Or set the +downgrade config option in - ijb.action. - +Contacting the Developers, Bug Reporting and Feature +Requests - - After running Junkbuster for a while, you can - start to fine tune the configuration to suit your personal, or site, - preferences and requirements. There are many, many aspects that can - be customized. Actions (as specified in ijb.action) - can be adjusted by pointing your browser to - http://i.j.b/, - and then follow the link to edit the actions list. - (This is an internal page and does not require Internet access.) - + - - In fact, various aspects of Junkbuster - configuration can be viewed from this page, including - current configuration parameters, source code version numbers, - the browser's request headers, and actions that apply - to a given URL. In addition to the ijb.action file - editor mentioned above, Junkbuster can also - be turned on and off from this page. - + &contacting; - - If you encounter problems, please verify it is a - Junkbuster bug, by disabling - Junkbuster, and then trying the same page. - Also, try another browser if possible to eliminate browser or site - problems. Before reporting it as a bug, see if there is not a configuration - option that is enabled that is causing the page not to load. You can - then add an exception for that page or site. If a bug, please report it to - the developers (see below). - - - - - - -Contact the Developers - - - Feature requests and other questions should be posted to the Feature - request page at SourceForge. There is also an archive there. - - - - Anyone interested in actively participating in development and related - discussions can join the appropriate mailing list - here. - Archives are available here too. - - - - Please report bugs, using the form at - Sourceforge. - Please try to verify that it is a Junkbuster bug, - and not a browser or site bug first. Also, check to make sure this is not - already a known bug. - + @@ -2858,24 +3190,10 @@ communication (bugs, feature requests, etc.) Copyright and History - -License - - Internet Junkbuster is free software; you can - redistribute it and/or modify it under the terms of the GNU General Public - License as published by the Free Software Foundation; either version 2 of the - License, or (at your option) any later version. - - - - This program is distributed in the hope that it will be useful, but WITHOUT - ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS - FOR A PARTICULAR PURPOSE. See the GNU General Public License for more - details, which is available from the Free Software Foundation, - Inc, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. - - +Copyright + + ©right; + @@ -2883,65 +3201,18 @@ communication (bugs, feature requests, etc.) - -History - - Junkbuster was originally written by Anonymous - Coders and JunkBusters - Corporation, and was released as free open-source software under the - GNU GPL. Stefan - Waldherr made many improvements, and started the SourceForge project to - rekindle development. The last stable release was v2.0.2, which has now - grown whiskers ;-). - - +History + + &history; + - -See also - - - - -   http://sourceforge.net/projects/ijbswa - - - - -   http://ijbswa.sourceforge.net/ - - - - -   http://i.j.b/ - - - - -   http://www.junkbusters.com/ht/en/cookies.html - - - - -   http://www.waldherr.org/junkbuster/ - - - - -   http://privacy.net/analyze/ - - - - -  http://www.squid-cache.org/ - - - - +See Also + + &seealso; + @@ -2954,11 +3225,11 @@ communication (bugs, feature requests, etc.) Regular Expressions - Junkbuster can use regular expressions + Privoxy can use regular expressions in various config files. Assuming support for pcre (Perl Compatible Regular Expressions) is compiled in, which is the default. Such configuration directives do not require regular expressions, but they can be - used to increase flexibility by matching a pattern with wildcards against + used to increase flexibility by matching a pattern with wild-cards against URLs. @@ -2973,18 +3244,18 @@ communication (bugs, feature requests, etc.) expression against another to see if it matches or not. One of the expressions is a literal string of readable characters (letter, numbers, etc), and the other is a complex string of literal - characters combined with wildcards, and other special characters, called - metacharacters. The metacharacters have special meanings and + characters combined with wild-cards, and other special characters, called + meta-characters. The meta-characters have special meanings and are used to build the complex pattern to be matched against. Perl Compatible Regular Expressions is an enhanced form of the regular expression language with backward compatibility. - To make a simple analogy, we do something similar when we use wildcard + To make a simple analogy, we do something similar when we use wild-card characters when listing files with the dir command in DOS. *.* matches all filenames. The special - character here is the asterik which matches any and all characters. We can be + character here is the asterisk which matches any and all characters. We can be more specific and use ? to match just individual characters. So dir file?.text would match file1.txt, file2.txt, etc. We are pattern @@ -3031,7 +3302,7 @@ communication (bugs, feature requests, etc.) \ - The escape character denotes that the following character should be taken literally. This is used where one of the special characters (e.g. .) needs to be taken literally and - not as a special metacharacter. + not as a special meta-character. @@ -3044,7 +3315,7 @@ communication (bugs, feature requests, etc.) - () - Pararentheses are used to group a sub-expression, + () - parentheses are used to group a sub-expression, or multiple sub-expressions. @@ -3067,7 +3338,7 @@ communication (bugs, feature requests, etc.) These are just some of the ones you are likely to use when matching URLs with - Junkbuster, and is a long way from a definitive + Privoxy, and is a long way from a definitive list. This is enough to get us started with a few simple examples which may be more illuminating: @@ -3156,7 +3427,7 @@ communication (bugs, feature requests, etc.) s/microsoft(?!.com)/MicroSuck/i - This is - a substitution. MicroSuck will replace any occurence of + a substitution. MicroSuck will replace any occurrence of microsoft. The i at the end of the expression means ignore case. The (?!.com) means the match should fail if microsoft is followed by @@ -3166,7 +3437,7 @@ communication (bugs, feature requests, etc.) We are barely scratching the surface of regular expressions here so that you - can understand the default Junkbuster + can understand the default Privoxy configuration files, and maybe use this knowledge to customize your own installation. There is much, much more that can be done with regular expressions. Now that you know enough to get started, you can learn more on @@ -3180,6 +3451,478 @@ communication (bugs, feature requests, etc.) + + + + + +<application>Privoxy</application>'s Internal Pages + + + Since Privoxy proxies each requested + web page, it is easy for Privoxy to + trap certain special URLs. In this way, we can talk directly to + Privoxy, and see how it is + configured, see how our rules are being applied, change these + rules and other configuration options, and even turn + Privoxy's filtering off, all with + a web browser. + + + + + The URLs listed below are the special ones that allow direct access + to Privoxy. Of course, + Privoxy must be running to access these. If + not, you will get a friendly error message. Internet access is not + necessary either. + + + + + + + + Privoxy main page: + +
+ + http://config.privoxy.org/ + +
+ + Alternately, this may be reached at http://p.p/, but this + variation may not work as reliably as the above in some configurations. + + + + + + Show information about the current configuration: + +
+ + http://config.privoxy.org/show-status + +
+ + + + + Show the source code version numbers: + +
+ + http://config.privoxy.org/show-version + +
+ + + + + Show the client's request headers: + +
+ + http://config.privoxy.org/show-request + +
+ + + + + Show which actions apply to a URL and why: + +
+ + http://config.privoxy.org/show-url-info + +
+ + + + + Toggle Privoxy on or off. In this case, Privoxy continues + to run, but only as a pass-through proxy, with no actions taking place: + +
+ + http://config.privoxy.org/toggle + +
+ + Short cuts. Turn off, then on: + +
+ + http://config.privoxy.org/toggle?set=disable + +
+
+ + http://config.privoxy.org/toggle?set=enable + +
+ + + + + Edit the actions list file: + +
+ + http://config.privoxy.org/edit-actions + +
+ + + + + + + These may be bookmarked for quick reference. + + + + +Bookmarklets + + Here are some bookmarklets to allow you to easily access a + mini version of this page. They are designed for MS Internet + Explorer, but should work equally well in Netscape, Mozilla, and other + browsers which support JavaScript. They are designed to run directly from + your bookmarks - not by clicking the links below (although that will work for + testing). + + + To save them, right-click the link and choose Add to Favorites + (IE) or Add Bookmark (Netscape). You will get a warning that + the bookmark may not be safe - just click OK. Then you can run the + Bookmarklet directly from your favourites/bookmarks. For even faster access, + you can put them on the Links bar (IE) or the Personal + Toolbar (Netscape), and run them with a single click. + + + + + + + + Enable Privoxy + + + + + + Disable Privoxy + + + + + + Toggle Privoxy (Toggles between enabled and disabled) + + + + + + View Privoxy Status + + + + + + + + Credit: The site which gave me the general idea for these bookmarklets is + www.bookmarklets.com. They + have more information about bookmarklets. + + + + + + + + + + +Anatomy of an Action + + + The way Privoxy applies actions + and filters to any given URL can be complex, and not always so + easy to understand what is happening. And sometimes we need to be able to + see just what Privoxy is + doing. Especially, if something Privoxy is doing + is causing us a problem inadvertantly. It can be a little daunting to look at + the actions and filters files themselves, since they tend to be filled with + regular expressions whose consequences are not always + so obvious. Privoxy provides the + http://config.privoxy.org/show-url-info + page that can show us very specifically how actions + are being applied to any given URL. This is a big help for troubleshooting. + + + + First, enter one URL (or partial URL) at the prompt, and then + Privoxy will tell us + how the current configuration will handle it. This will not + help with filtering effects from the default.filter file! It + also will not tell you about any other URLs that may be embedded within the + URL you are testing. For instance, images such as ads are expressed as URLs + within the raw page source of HTML pages. So you will only get info for the + actual URL that is pasted into the prompt area -- not any sub-URLs. If you + want to know about embedded URLs like ads, you will have to dig those out of + the HTML source. Use your browser's View Page Source option + for this. Or right click on the ad, and grab the URL. + + + + Let's look at an example, google.com, + one section at a time: + + + + + System default actions: + + { -add-header -block -deanimate-gifs -downgrade -fast-redirects -filter + -hide-forwarded -hide-from -hide-referer -hide-user-agent -image + -image-blocker -limit-connect -no-compression -no-cookies-keep + -no-cookies-read -no-cookies-set -no-popups -vanilla-wafer -wafer } + + + + + + This is the top section, and only tells us of the compiled in defaults. This + is basically what Privoxy would do if there + were not any actions defined, i.e. it does nothing. Every action + is disabled. This is not particularly informative for our purposes here. OK, + next section: + + + + + + Matches for http://google.com: + + { -add-header -block +deanimate-gifs -downgrade +fast-redirects + +filter{html-annoyances} +filter{js-annoyances} +filter{no-popups} + +filter{webbugs} +filter{nimda} +filter{banners-by-size} +filter{hal} + +filter{fun} +hide-forwarded +hide-from{block} +hide-referer{forge} + -hide-user-agent -image +image-blocker{blank} +no-compression + +no-cookies-keep -no-cookies-read -no-cookies-set +no-popups + -vanilla-wafer -wafer } + / + + { -no-cookies-keep -no-cookies-read -no-cookies-set } + .google.com + + { -fast-redirects } + .google.com + + + + + + This is much more informative, and tells us how we have defined our + actions, and which ones match for our example, + google.com. The first grouping shows our default + settings, which would apply to all URLs. If you look at your actions + file, this would be the section just below the aliases section + near the top. This applies to all URLs as signified by the single forward + slash -- /. + + + + + These are the default actions we have enabled. But we can define additional + actions that would be exceptions to these general rules, and then list + specific URLs that these exceptions would apply to. Last match wins. + Just below this then are two explict matches for .google.com. + The first is negating our various cookie blocking actions (i.e. we will allow + cookies here). The second is allowing fast-redirects. Note + that there is a leading dot here -- .google.com. This will + match any hosts and sub-domains, in the google.com domain also, such as + www.google.com. So, apparently, we have these actions defined + somewhere in the lower part of our actions file, and + google.com is referenced in these sections. + + + + + And now we pull it altogether in the bottom section and summarize how + Privoxy is appying all its actions + to google.com: + + + + + + + Final results: + + -add-header -block -deanimate-gifs -downgrade -fast-redirects + +filter{html-annoyances} +filter{js-annoyances} +filter{no-popups} + +filter{webbugs} +filter{nimda} +filter{banners-by-size} +filter{hal} + +filter{fun} +hide-forwarded +hide-from{block} +hide-referer{forge} + -hide-user-agent -image +image-blocker{blank} -limit-connect +no-compression + -no-cookies-keep -no-cookies-read -no-cookies-set +no-popups -vanilla-wafer + -wafer + + + + + + Now another example, ad.doubleclick.net: + + + + + + { +block +image } + .ad.doubleclick.net + + { +block +image } + ad*. + + { +block +image } + .doubleclick.net + + + + + + We'll just show the interesting part here, the explicit matches. It is + matched three different times. Each as an +block +image, + which is the expanded form of one of our aliases that had been defined as: + +imageblock. (Aliases are defined in the + first section of the actions file and typically used to combine more + than one action.) + + + + Any one of these would have done the trick and blocked this as an unwanted + image. This is unnecessarily redundant since the last case effectively + would also cover the first. No point in taking chances with these guys + though ;-) Note that if you want an ad or obnoxious + URL to be invisible, it should be defined as ad.doubleclick.net + is done here -- as both a +block and an + +image. The custom alias +imageblock does this + for us. + + + + One last example. Let's try http://www.rhapsodyk.net/adsl/HOWTO/. + This one is giving us problems. We are getting a blank page. Hmmm... + + + + + + Matches for http://www.rhapsodyk.net/adsl/HOWTO/: + + { -add-header -block +deanimate-gifs -downgrade +fast-redirects + +filter{html-annoyances} +filter{js-annoyances} +filter{no-popups} + +filter{webbugs} +filter{nimda} +filter{banners-by-size} +filter{hal} + +filter{fun} +hide-forwarded +hide-from{block} +hide-referer{forge} + -hide-user-agent -image +image-blocker{blank} +no-compression + +no-cookies-keep -no-cookies-read -no-cookies-set +no-popups + -vanilla-wafer -wafer } + / + + { +block +image } + /ads + + + + + + Ooops, the /adsl/ is matching /ads! But + we did not want this at all! Now we see why we get the blank page. We could + now add a new action below this that explictly does not + block (-block) pages with adsl. There are various ways to + handle such exceptions. Example: + + + + + + { -block } + /adsl + + + + + + Now the page displays ;-) Be sure to flush your browser's caches when + making such changes. Or, try using Shift+Reload. + + + + But now what about a situation where we get no explicit matches like + we did with: + + + + + + { -block } + /adsl + + + + + + That actually was very telling and pointed us quickly to where the problem + was. If you don't get this kind of match, then it means one of the default + rules in the first section is causing the problem. This would require some + guesswork, and maybe a little trial and error to isolate the offending rule. + One likely cause would be one of the {+filter} actions. Try + adding the URL for the site to one of aliases that turn off +filter: + + + + + + {shop} + .quietpc.com + .worldpay.com # for quietpc.com + .jungle.com + .scan.co.uk + .forbes.com + + + + + + {shop} is an alias that expands to + { -filter -no-cookies -no-cookies-keep }. Or you could do + your own exception to negate filtering: + + + + + + + {-filter} + .forbes.com + + + + + + {fragile} is an alias that disables most actions. This can be + used as a last resort for problem sites. Remember to flush caches! If this + still does not work, you will have to go through the remaining actions one by + one to find which one(s) is causing the problem. + + + +