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-><DIV
-CLASS="SECT1"
-><H1
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-><A
-NAME="CONFIGURATION"
->3. Configuration</A
-></H1
-><DIV
-CLASS="SECT2"
-><H3
-CLASS="SECT2"
-><A
-NAME="AEN347"
->3.1. What exactly is an <SPAN
-CLASS="QUOTE"
->"actions"</SPAN
-> file?</A
-></H3
-><P
-> <SPAN
-CLASS="APPLICATION"
->Privoxy</SPAN
-> utilizes the concept of <SPAN
-CLASS="QUOTE"
->" <A
-HREF="../user-manual/actions-file.html#ACTIONS"
-TARGET="_top"
->actions</A
->"</SPAN
->
- that are used to manipulate and control web page data.
- <A
-HREF="../user-manual/actions-file.html"
-TARGET="_top"
->Actions files</A
->
- are where these <A
-HREF="../user-manual/actions-file.html#ACTIONS"
-TARGET="_top"
->actions</A
->
- that <SPAN
-CLASS="APPLICATION"
->Privoxy</SPAN
-> could take while processing a certain
- request, are configured. Typically, you would define a set of default actions
- that apply globally to all URLs, then add exceptions to these defaults where needed.
- There is a wide array of actions available that give the user a high degree
- of control and flexibility on how to process each and every web page.</P
-><P
-> Actions can be defined on a <A
-HREF="../user-manual/actions-file.html#AF-PATTERNS"
-TARGET="_top"
->URL pattern</A
-> basis, i.e.
- for single URLs, whole web sites, groups or parts thereof etc. Actions can also be
- grouped together and then applied to requests matching one or more patterns.
- There are many possible actions that might apply to any given site. As an example,
- if you are blocking <A
-HREF="http://en.wikipedia.org/wiki/Browser_cookie"
-TARGET="_top"
->cookies</A
->
- as one of your default actions, but need to accept cookies from a given site,
- you would need to define an exception for this site in one of your actions
- files, preferably in <TT
-CLASS="FILENAME"
->user.action</TT
->.</P
-></DIV
-><DIV
-CLASS="SECT2"
-><H3
-CLASS="SECT2"
-><A
-NAME="ACTIONSS"
->3.2. The <SPAN
-CLASS="QUOTE"
->"actions"</SPAN
-> concept confuses me. Please list
-some of these <SPAN
-CLASS="QUOTE"
->"actions"</SPAN
->.</A
-></H3
-><P
-> For a comprehensive discussion of the actions concept, please refer
- to the <A
-HREF="../user-manual/actions-file.html"
-TARGET="_top"
->actions file
- chapter</A
-> in the <A
-HREF="../user-manual/index.html"
-TARGET="_top"
->User
- Manual</A
->. It includes a <A
-HREF="../user-manual/actions-file.html#ACTIONS"
-TARGET="_top"
->list of all actions</A
->
- and an <A
-HREF="../user-manual/actions-file.html#ACT-EXAMPLES"
-TARGET="_top"
->actions
- file tutorial</A
-> to get you started.</P
-></DIV
-><DIV
-CLASS="SECT2"
-><H3
-CLASS="SECT2"
-><A
-NAME="AEN370"
->3.3. How are actions files configured? What is the easiest
-way to do this?</A
-></H3
-><P
-> Actions files are just text files in a special syntax and can be edited
- with a text editor. But probably the easiest way is to access
- <SPAN
-CLASS="APPLICATION"
->Privoxy</SPAN
->'s user interface with your web browser
- at <A
-HREF="http://config.privoxy.org/"
-TARGET="_top"
->http://config.privoxy.org/</A
->
- (Shortcut: <A
-HREF="http://p.p/"
-TARGET="_top"
->http://p.p/</A
->) and then select
- <SPAN
-CLASS="QUOTE"
->"<A
-HREF="http://config.privoxy.org/show-status"
-TARGET="_top"
->View &
- change the current configuration</A
->"</SPAN
-> from the menu. Note
- that this feature must be explicitly enabled in the main config file
- (see <A
-HREF="../user-manual/config.html#ENABLE-EDIT-ACTIONS"
-TARGET="_top"
->enable-edit-actions</A
->).</P
-></DIV
-><DIV
-CLASS="SECT2"
-><H3
-CLASS="SECT2"
-><A
-NAME="AEN379"
->3.4. There are several different <SPAN
-CLASS="QUOTE"
->"actions"</SPAN
-> files. What are
-the differences?</A
-></H3
-><P
-> Three actions files
- are being included by the developers, to be used for
- different purposes: These are
- <TT
-CLASS="FILENAME"
->default.action</TT
->, the <SPAN
-CLASS="QUOTE"
->"main"</SPAN
-> actions file
- which is actively maintained by the <SPAN
-CLASS="APPLICATION"
->Privoxy</SPAN
->
- developers and typically sets the default policies, <TT
-CLASS="FILENAME"
->user.action</TT
->, where users are encouraged
- to make their private customizations, and <TT
-CLASS="FILENAME"
->standard.action</TT
->,
- which is for internal <SPAN
-CLASS="APPLICATION"
->Privoxy</SPAN
-> use only.
- Please see <A
-HREF="../user-manual/actions-file.html"
-TARGET="_top"
->the actions chapter</A
->
- in the <A
-HREF="../user-manual/index.html"
-TARGET="_top"
->User Manual</A
-> for a more
- detailed explanation.</P
-><P
-> Earlier versions included three different versions of the
- <TT
-CLASS="FILENAME"
->default.action</TT
-> file. The new scheme allows for
- greater flexibility of local configuration, and for browser based
- selection of pre-defined <SPAN
-CLASS="QUOTE"
->"aggressiveness"</SPAN
-> levels.</P
-></DIV
-><DIV
-CLASS="SECT2"
-><H3
-CLASS="SECT2"
-><A
-NAME="GETUPDATES"
->3.5. Where can I get updated Actions Files?</A
-></H3
-><P
-> Based on your feedback and the continuing development, updates of
- <TT
-CLASS="FILENAME"
->default.action</TT
-> will be
- made available from time to time on the <A
-HREF="http://sourceforge.net/project/showfiles.php?group_id=11118"
-TARGET="_top"
->files section</A
-> of
- our <A
-HREF="http://sf.net/projects/ijbswa/"
-TARGET="_top"
->project page</A
->.
- </P
-><P
-> If you wish to receive an email notification whenever we release updates of
- <SPAN
-CLASS="APPLICATION"
->Privoxy</SPAN
-> or the actions file, <A
-HREF="http://lists.sourceforge.net/lists/listinfo/ijbswa-announce/"
-TARGET="_top"
->subscribe
- to our announce mailing list</A
->, ijbswa-announce@lists.sourceforge.net.
- </P
-></DIV
-><DIV
-CLASS="SECT2"
-><H3
-CLASS="SECT2"
-><A
-NAME="NEWCONFIG"
->3.6. Can I use my old config files?</A
-></H3
-><P
-> The syntax and purpose of configuration files has remained roughly the
- same throughout the 3.x series, but backwards compatibility is not guaranteed.
- Also each release contains updated, <SPAN
-CLASS="QUOTE"
->"improved"</SPAN
-> versions and it is
- therefore strongly recommended to install the newer configuration files
- and merge back your modifications.
- </P
-></DIV
-><DIV
-CLASS="SECT2"
-><H3
-CLASS="SECT2"
-><A
-NAME="DIFFICULT"
->3.7. Why is the configuration so complicated?</A
-></H3
-><P
-> <SPAN
-CLASS="QUOTE"
->"Complicated"</SPAN
-> is in the eye of the beholder. Those that are
- familiar with some of the underlying concepts, such as regular expression
- syntax, take to it like a fish takes to water. Also, software that tries
- hard to be <SPAN
-CLASS="QUOTE"
->"user friendly"</SPAN
->, often lacks sophistication and
- flexibility. There is always that trade-off there between power vs.
- easy-of-use. Furthermore, anyone is welcome to contribute ideas and
- implementations to enhance <SPAN
-CLASS="APPLICATION"
->Privoxy</SPAN
->.
- </P
-></DIV
-><DIV
-CLASS="SECT2"
-><H3
-CLASS="SECT2"
-><A
-NAME="YAHOO"
->3.8. How can I make my Yahoo/Hotmail/Gmail account work?</A
-></H3
-><P
-> The default configuration shouldn't impact the usability of any of these services.
- It may, however, make all <A
-HREF="http://en.wikipedia.org/wiki/Browser_cookie"
-TARGET="_top"
->cookies</A
->
- temporary, so that your browser will forget your
- login credentials in between browser sessions. If you would like not to have to log
- in manually each time you access those websites, simply turn off all cookie handling
- for them in the <TT
-CLASS="FILENAME"
->user.action</TT
-> file. An example for yahoo might
- look like:
- </P
-><P
-> <TABLE
-BORDER="0"
-BGCOLOR="#E0E0E0"
-WIDTH="100%"
-><TR
-><TD
-><PRE
-CLASS="SCREEN"
-># Allow all cookies for Yahoo login:
+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01
+Transitional//EN""http://www.w3.org/TR/html4/loose.dtd">
+<html>
+ <head>
+ <meta name="generator" content="HTML Tidy, see www.w3.org">
+ <title>
+ Configuration
+ </title>
+ <meta name="GENERATOR" content=
+ "Modular DocBook HTML Stylesheet Version 1.79">
+ <link rel="HOME" title="Privoxy Frequently Asked Questions" href=
+ "index.html">
+ <link rel="PREVIOUS" title="Installation" href="installation.html">
+ <link rel="NEXT" title="Miscellaneous" href="misc.html">
+ <link rel="STYLESHEET" type="text/css" href="../p_doc.css">
+ <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
+<style type="text/css">
+ body {
+ background-color: #EEEEEE;
+ color: #000000;
+ }
+ :link { color: #0000FF }
+ :visited { color: #840084 }
+ :active { color: #0000FF }
+ hr.c1 {text-align: left}
+</style>
+ </head>
+ <body class="SECT1">
+ <div class="NAVHEADER">
+ <table summary="Header navigation table" width="100%" border="0"
+ cellpadding="0" cellspacing="0">
+ <tr>
+ <th colspan="3" align="center">
+ Privoxy Frequently Asked Questions
+ </th>
+ </tr>
+ <tr>
+ <td width="10%" align="left" valign="bottom">
+ <a href="installation.html" accesskey="P">Prev</a>
+ </td>
+ <td width="80%" align="center" valign="bottom">
+ </td>
+ <td width="10%" align="right" valign="bottom">
+ <a href="misc.html" accesskey="N">Next</a>
+ </td>
+ </tr>
+ </table>
+ <hr width="100%" class="c1">
+ </div>
+ <div class="SECT1">
+ <h1 class="SECT1">
+ <a name="CONFIGURATION">3. Configuration</a>
+ </h1>
+ <div class="SECT2">
+ <h3 class="SECT2">
+ <a name="AEN360">3.1. What exactly is an <span class=
+ "QUOTE">"actions"</span> file?</a>
+ </h3>
+ <p>
+ <span class="APPLICATION">Privoxy</span> utilizes the concept of
+ <span class="QUOTE">" <a href=
+ "../user-manual/actions-file.html#ACTIONS" target=
+ "_top">actions</a>"</span> that are used to manipulate and control
+ web page data. <a href="../user-manual/actions-file.html" target=
+ "_top">Actions files</a> are where these <a href=
+ "../user-manual/actions-file.html#ACTIONS" target=
+ "_top">actions</a> that <span class="APPLICATION">Privoxy</span>
+ could take while processing a certain request, are configured.
+ Typically, you would define a set of default actions that apply
+ globally to all URLs, then add exceptions to these defaults where
+ needed. There is a wide array of actions available that give the
+ user a high degree of control and flexibility on how to process
+ each and every web page.
+ </p>
+ <p>
+ Actions can be defined on a <a href=
+ "../user-manual/actions-file.html#AF-PATTERNS" target="_top">URL
+ pattern</a> basis, i.e. for single URLs, whole web sites, groups or
+ parts thereof etc. Actions can also be grouped together and then
+ applied to requests matching one or more patterns. There are many
+ possible actions that might apply to any given site. As an example,
+ if you are blocking <a href=
+ "http://en.wikipedia.org/wiki/Browser_cookie" target=
+ "_top">cookies</a> as one of your default actions, but need to
+ accept cookies from a given site, you would need to define an
+ exception for this site in one of your actions files, preferably in
+ <tt class="FILENAME">user.action</tt>.
+ </p>
+ </div>
+ <div class="SECT2">
+ <h3 class="SECT2">
+ <a name="ACTIONSS">3.2. The <span class="QUOTE">"actions"</span>
+ concept confuses me. Please list some of these <span class=
+ "QUOTE">"actions"</span>.</a>
+ </h3>
+ <p>
+ For a comprehensive discussion of the actions concept, please refer
+ to the <a href="../user-manual/actions-file.html" target=
+ "_top">actions file chapter</a> in the <a href=
+ "../user-manual/index.html" target="_top">User Manual</a>. It
+ includes a <a href="../user-manual/actions-file.html#ACTIONS"
+ target="_top">list of all actions</a> and an <a href=
+ "../user-manual/actions-file.html#ACT-EXAMPLES" target=
+ "_top">actions file tutorial</a> to get you started.
+ </p>
+ </div>
+ <div class="SECT2">
+ <h3 class="SECT2">
+ <a name="AEN383">3.3. How are actions files configured? What is the
+ easiest way to do this?</a>
+ </h3>
+ <p>
+ Actions files are just text files in a special syntax and can be
+ edited with a text editor. But probably the easiest way is to
+ access <span class="APPLICATION">Privoxy</span>'s user interface
+ with your web browser at <a href="http://config.privoxy.org/"
+ target="_top">http://config.privoxy.org/</a> (Shortcut: <a href=
+ "http://p.p/" target="_top">http://p.p/</a>) and then select <span
+ class="QUOTE">"<a href="http://config.privoxy.org/show-status"
+ target="_top">View & change the current
+ configuration</a>"</span> from the menu. Note that this feature
+ must be explicitly enabled in the main config file (see <a href=
+ "../user-manual/config.html#ENABLE-EDIT-ACTIONS" target=
+ "_top">enable-edit-actions</a>).
+ </p>
+ </div>
+ <div class="SECT2">
+ <h3 class="SECT2">
+ <a name="AEN392">3.4. There are several different <span class=
+ "QUOTE">"actions"</span> files. What are the differences?</a>
+ </h3>
+ <p>
+ Please have a look at the <a href=
+ "../user-manual/actions-file.html" target="_top">the actions
+ chapter</a> in the <a href="../user-manual/index.html" target=
+ "_top">User Manual</a> for a detailed explanation.
+ </p>
+ </div>
+ <div class="SECT2">
+ <h3 class="SECT2">
+ <a name="GETUPDATES">3.5. Where can I get updated Actions
+ Files?</a>
+ </h3>
+ <p>
+ Based on your feedback and the continuing development, updates of
+ <tt class="FILENAME">default.action</tt> will be made available
+ from time to time on the <a href=
+ "http://sourceforge.net/project/showfiles.php?group_id=11118"
+ target="_top">files section</a> of our <a href=
+ "http://sf.net/projects/ijbswa/" target="_top">project page</a>.
+ </p>
+ <p>
+ If you wish to receive an email notification whenever we release
+ updates of <span class="APPLICATION">Privoxy</span> or the actions
+ file, <a href=
+ "http://lists.sourceforge.net/lists/listinfo/ijbswa-announce/"
+ target="_top">subscribe to our announce mailing list</a>,
+ ijbswa-announce@lists.sourceforge.net.
+ </p>
+ </div>
+ <div class="SECT2">
+ <h3 class="SECT2">
+ <a name="NEWCONFIG">3.6. Can I use my old config files?</a>
+ </h3>
+ <p>
+ The syntax and purpose of configuration files has remained roughly
+ the same throughout the 3.x series, but backwards compatibility is
+ not guaranteed. Also each release contains updated, <span class=
+ "QUOTE">"improved"</span> versions and it is therefore strongly
+ recommended to install the newer configuration files and merge back
+ your modifications.
+ </p>
+ </div>
+ <div class="SECT2">
+ <h3 class="SECT2">
+ <a name="DIFFICULT">3.7. Why is the configuration so
+ complicated?</a>
+ </h3>
+ <p>
+ <span class="QUOTE">"Complicated"</span> is in the eye of the
+ beholder. Those that are familiar with some of the underlying
+ concepts, such as regular expression syntax, take to it like a fish
+ takes to water. Also, software that tries hard to be <span class=
+ "QUOTE">"user friendly"</span>, often lacks sophistication and
+ flexibility. There is always that trade-off there between power vs.
+ easy-of-use. Furthermore, anyone is welcome to contribute ideas and
+ implementations to enhance <span class=
+ "APPLICATION">Privoxy</span>.
+ </p>
+ </div>
+ <div class="SECT2">
+ <h3 class="SECT2">
+ <a name="YAHOO">3.8. How can I make my Yahoo/Hotmail/Gmail account
+ work?</a>
+ </h3>
+ <p>
+ The default configuration shouldn't impact the usability of any of
+ these services. It may, however, make all <a href=
+ "http://en.wikipedia.org/wiki/Browser_cookie" target=
+ "_top">cookies</a> temporary, so that your browser will forget your
+ login credentials in between browser sessions. If you would like
+ not to have to log in manually each time you access those websites,
+ simply turn off all cookie handling for them in the <tt class=
+ "FILENAME">user.action</tt> file. An example for yahoo might look
+ like:
+ </p>
+ <p>
+ </p>
+ <table border="0" bgcolor="#E0E0E0" width="100%">
+ <tr>
+ <td>
+<pre class="SCREEN">
+# Allow all cookies for Yahoo login:
#
-{ -<A
-HREF="../user-manual/actions-file.html#CRUNCH-INCOMING-COOKIES"
-TARGET="_top"
->crunch-incoming-cookies</A
-> -<A
-HREF="../user-manual/actions-file.html#CRUNCH-OUTGOING-COOKIES"
-TARGET="_top"
->crunch-outgoing-cookies</A
-> -<A
-HREF="../user-manual/actions-file.html#SESSION-COOKIES-ONLY"
-TARGET="_top"
->session-cookies-only</A
-> }
-.login.yahoo.com</PRE
-></TD
-></TR
-></TABLE
->
- </P
-><P
-> These kinds of sites are often quite complex and heavy with
- <A
-HREF="http://en.wikipedia.org/wiki/Javascript"
-TARGET="_top"
->Javascript</A
-> and
- thus <SPAN
-CLASS="QUOTE"
->"fragile"</SPAN
->. So if <SPAN
-CLASS="emphasis"
-><I
-CLASS="EMPHASIS"
->still</I
-></SPAN
-> a problem,
- we have an <A
-HREF="../user-manual/actions-file.html#ALIASES"
-TARGET="_top"
->alias</A
-> just for such
- sticky situations:
- </P
-><P
-> <TABLE
-BORDER="0"
-BGCOLOR="#E0E0E0"
-WIDTH="100%"
-><TR
-><TD
-><PRE
-CLASS="SCREEN"
-># Gmail is a _fragile_ site:
+{ -<a href="../user-manual/actions-file.html#CRUNCH-INCOMING-COOKIES" target=
+"_top">crunch-incoming-cookies</a> -<a href=
+"../user-manual/actions-file.html#CRUNCH-OUTGOING-COOKIES" target=
+"_top">crunch-outgoing-cookies</a> -<a href=
+"../user-manual/actions-file.html#SESSION-COOKIES-ONLY" target=
+"_top">session-cookies-only</a> }
+.login.yahoo.com
+</pre>
+ </td>
+ </tr>
+ </table>
+
+ <p>
+ These kinds of sites are often quite complex and heavy with <a
+ href="http://en.wikipedia.org/wiki/Javascript" target=
+ "_top">Javascript</a> and thus <span class=
+ "QUOTE">"fragile"</span>. So if <span class="emphasis"><i class=
+ "EMPHASIS">still</i></span> a problem, we have an <a href=
+ "../user-manual/actions-file.html#ALIASES" target="_top">alias</a>
+ just for such sticky situations:
+ </p>
+ <p>
+ </p>
+ <table border="0" bgcolor="#E0E0E0" width="100%">
+ <tr>
+ <td>
+<pre class="SCREEN">
+# Gmail is a _fragile_ site:
#
-{ <TT
-CLASS="LITERAL"
->fragile</TT
-> }
+{ <tt class="LITERAL">fragile</tt> }
# Gmail is ...
- mail.google.com</PRE
-></TD
-></TR
-></TABLE
->
- </P
-><P
-> Be sure to flush your browser's caches whenever making these kinds of
- changes, just to make sure the changes <SPAN
-CLASS="QUOTE"
->"take"</SPAN
->.
- </P
-><P
-> Make sure the domain, host and path are appropriate as well. Your browser can
- tell you where you are specifically and you should use that information for
- your configuration settings. Note that above it is not referenced as
- <TT
-CLASS="LITERAL"
->gmail.com</TT
->, which is a valid domain name.
- </P
-></DIV
-><DIV
-CLASS="SECT2"
-><H3
-CLASS="SECT2"
-><A
-NAME="CONFIGFILES"
->3.9. What's the difference between the
-<SPAN
-CLASS="QUOTE"
->"Cautious"</SPAN
->, <SPAN
-CLASS="QUOTE"
->"Medium"</SPAN
-> and <SPAN
-CLASS="QUOTE"
->"Advanced"</SPAN
-> defaults?</A
-></H3
-><P
-> Configuring <SPAN
-CLASS="APPLICATION"
->Privoxy</SPAN
-> is not entirely trivial. To
- help you get started, we provide you with three different default action
- <SPAN
-CLASS="QUOTE"
->"profiles"</SPAN
-> in the web based actions file editor at <A
-HREF="http://config.privoxy.org/show-status"
-TARGET="_top"
->http://config.privoxy.org/show-status</A
->.
- See the <A
-HREF="../user-manual/actions-file.html"
-TARGET="_top"
-><I
-CLASS="CITETITLE"
->User
- Manual</I
-></A
-> for a list of actions, and how the default
- profiles are set.
- </P
-><P
-> Where the defaults are likely to break some sites, exceptions for
- known popular <SPAN
-CLASS="QUOTE"
->"problem"</SPAN
-> sites are included, but in
- general, the more aggressive your default settings are, the more exceptions
- you will have to make later. New users are best to start off in
- <SPAN
-CLASS="QUOTE"
->"Cautious"</SPAN
-> setting. This is safest and will have the fewest
- problems. See the <A
-HREF="../user-manual/index.html"
-TARGET="_top"
-><I
-CLASS="CITETITLE"
->User Manual</I
-></A
->
- for a more detailed discussion.</P
-><P
-> It should be noted that the <SPAN
-CLASS="QUOTE"
->"Advanced"</SPAN
-> profile (formerly known
- as the <SPAN
-CLASS="QUOTE"
->"Adventuresome"</SPAN
-> profile) is more
- aggressive, and will make use of some of
- <SPAN
-CLASS="APPLICATION"
->Privoxy's</SPAN
-> advanced features. Use at your own risk!</P
-></DIV
-><DIV
-CLASS="SECT2"
-><H3
-CLASS="SECT2"
-><A
-NAME="BROWSECONFIG"
->3.10. Why can I change the configuration
-with a browser? Does that not raise security issues?</A
-></H3
-><P
-> It may seem strange that regular users can edit the config files with their
- browsers, although the whole <TT
-CLASS="FILENAME"
->/etc/privoxy</TT
-> hierarchy
- belongs to the user <SPAN
-CLASS="QUOTE"
->"privoxy"</SPAN
->, with only 644 permissions.
- </P
-><P
-> When you use the browser-based editor, <SPAN
-CLASS="APPLICATION"
->Privoxy</SPAN
->
- itself is writing to the config files. Because
- <SPAN
-CLASS="APPLICATION"
->Privoxy</SPAN
-> is running as the user <SPAN
-CLASS="QUOTE"
->"privoxy"</SPAN
->,
- it can update its own config files.
- </P
-><P
-> If you run <SPAN
-CLASS="APPLICATION"
->Privoxy</SPAN
-> for multiple untrusted users (e.g. in
- a LAN) or aren't entirely in control of your own browser, you will probably want
- to make sure that the the web-based editor and remote toggle features are
- <SPAN
-CLASS="QUOTE"
->"off"</SPAN
-> by setting <SPAN
-CLASS="QUOTE"
->"<TT
-CLASS="LITERAL"
-><A
-HREF="../user-manual/config.html#ENABLE-EDIT-ACTIONS"
-TARGET="_top"
->enable-edit-actions</A
->
- 0</TT
->"</SPAN
-> and <SPAN
-CLASS="QUOTE"
->"<TT
-CLASS="LITERAL"
-><A
-HREF="../user-manual/config.html#ENABLE-REMOTE-TOGGLE"
-TARGET="_top"
->enable-remote-toggle</A
->
- 0</TT
->"</SPAN
-> in the <A
-HREF="../user-manual/config.html"
-TARGET="_top"
->main configuration file</A
->.
- </P
-><P
-> As of <SPAN
-CLASS="APPLICATION"
->Privoxy</SPAN
-> 3.0.7 these options are disabled by default.
- </P
-></DIV
-><DIV
-CLASS="SECT2"
-><H3
-CLASS="SECT2"
-><A
-NAME="AEN476"
->3.11. What is the <TT
-CLASS="FILENAME"
->default.filter</TT
-> file? What is a <SPAN
-CLASS="QUOTE"
->"filter"</SPAN
->?</A
-></H3
-><P
-> The <A
-HREF="../user-manual/filter-file.html"
-TARGET="_top"
-><TT
-CLASS="FILENAME"
->default.filter</TT
-></A
->
- file is where <SPAN
-CLASS="emphasis"
-><I
-CLASS="EMPHASIS"
->filters</I
-></SPAN
-> as supplied by the developers are defined.
- Filters are a special subset of actions that can be used to modify or
- remove web page content or headers on the fly. Content filters can
- be applied to <SPAN
-CLASS="emphasis"
-><I
-CLASS="EMPHASIS"
->anything</I
-></SPAN
-> in the page source,
- header filters can be applied to either server or client headers.
- Regular expressions are used to accomplish this.</P
-><P
-> There are a number of pre-defined filters to deal with common annoyances. The
- filters are only defined here, to invoke them, you need to use the
- <A
-HREF="../user-manual/actions-file.html#FILTER"
-TARGET="_top"
-><TT
-CLASS="LITERAL"
->filter</TT
->
- action</A
-> in one of the actions files. Content filtering is automatically
- disabled for inappropriate MIME types, but if you now better than Privoxy
- what should or should not be filtered you can filter any content you like.</P
-><P
-> Filters should
- <SPAN
-CLASS="emphasis"
-><I
-CLASS="EMPHASIS"
->not</I
-></SPAN
-> be confused with <A
-HREF="../user-manual/actions-file.html#BLOCK"
-TARGET="_top"
-><TT
-CLASS="LITERAL"
->blocks</TT
-></A
->, which
- is a completely different action, and is more typically used to block ads and
- unwanted sites.</P
-><P
-> If you are familiar with regular expressions, and HTML, you can look at
- the provided <TT
-CLASS="FILENAME"
->default.filter</TT
-> with a text editor and define
- your own filters. This is potentially a very powerful feature, but
- requires some expertise in both regular expressions and HTML/HTTP.
- You should
- place any modifications to the default filters, or any new ones you create
- in a separate file, such as <TT
-CLASS="FILENAME"
->user.filter</TT
->, so they won't
- be overwritten during upgrades.
- The ability to define multiple filter files
- in <TT
-CLASS="FILENAME"
->config</TT
-> is a new feature as of v. 3.0.5.</P
-><P
-> There is no GUI editor option for this part of the configuration,
- but you can disable/enable the various pre-defined filters of the included
- <TT
-CLASS="FILENAME"
->default.filter</TT
-> file with the <A
-HREF="http://config.privoxy.org/show-status"
-TARGET="_top"
->web-based actions file editor</A
->.
- Note that the custom actions editor must be explicitly enabled in
- the main config file (see <A
-HREF="../user-manual/config.html#ENABLE-EDIT-ACTIONS"
-TARGET="_top"
->enable-edit-actions</A
->).</P
-><P
-> If you intend to develop your own filters, you might want to have a look at
- <A
-HREF="http://www.fabiankeil.de/sourcecode/pft/"
-TARGET="_top"
->Privoxy-Filter-Test</A
->.</P
-></DIV
-><DIV
-CLASS="SECT2"
-><H3
-CLASS="SECT2"
-><A
-NAME="LANCONFIG"
->3.12. How can I set up Privoxy to act as a proxy for my
- LAN?</A
-></H3
-><P
-> By default, <SPAN
-CLASS="APPLICATION"
->Privoxy</SPAN
-> only responds to requests
- from <TT
-CLASS="LITERAL"
->127.0.0.1</TT
-> (localhost). To have it act as a server for
- a network, this needs to be changed in the <A
-HREF="../user-manual/config.html"
-TARGET="_top"
->main configuration file</A
->. Look for
- the <TT
-CLASS="LITERAL"
-><A
-HREF="../user-manual/config.html#LISTEN-ADDRESS"
-TARGET="_top"
->listen-address</A
-></TT
->
- option, which may be commented out with a <SPAN
-CLASS="QUOTE"
->"#"</SPAN
-> symbol. Make sure
- it is uncommented, and assign it the address of the LAN gateway interface,
- and port number to use. Assuming your LAN address is 192.168.1.1 and you
- wish to run <SPAN
-CLASS="APPLICATION"
->Privoxy</SPAN
-> on port 8118, this line
- should look like:</P
-><P
-> <TABLE
-BORDER="0"
-BGCOLOR="#E0E0E0"
-WIDTH="100%"
-><TR
-><TD
-><PRE
-CLASS="SCREEN"
-> listen-address 192.168.1.1:8118</PRE
-></TD
-></TR
-></TABLE
-></P
-><P
-> Save the file, and restart <SPAN
-CLASS="APPLICATION"
->Privoxy</SPAN
->. Configure
- all browsers on the network then to use this address and port number.</P
-><P
-> Alternately, you can have <SPAN
-CLASS="APPLICATION"
->Privoxy</SPAN
-> listen on
- all available interfaces:</P
-><P
-> <TABLE
-BORDER="0"
-BGCOLOR="#E0E0E0"
-WIDTH="100%"
-><TR
-><TD
-><PRE
-CLASS="SCREEN"
-> listen-address :8118</PRE
-></TD
-></TR
-></TABLE
-></P
-><P
-> And then use <SPAN
-CLASS="APPLICATION"
->Privoxy's</SPAN
->
- <A
-HREF="../user-manual/config.html#PERMIT-ACCESS"
-TARGET="_top"
->permit-access</A
->
- feature to limit connections. A firewall in this situation is recommended
- as well.</P
-><P
-> The above steps should be the same for any TCP network, regardless of
- operating system.</P
-><P
-> If you run <SPAN
-CLASS="APPLICATION"
->Privoxy</SPAN
-> on a LAN with untrusted users,
- we recommend that you double-check the <A
-HREF="../user-manual/config.html#ACCESS-CONTROL"
-TARGET="_top"
->access control and security</A
->
- options!</P
-></DIV
-><DIV
-CLASS="SECT2"
-><H3
-CLASS="SECT2"
-><A
-NAME="AEN527"
->3.13. Instead of ads, now I get a checkerboard pattern. I don't want to see anything.</A
-></H3
-><P
-> The replacement for blocked images can be controlled with the <A
-HREF="../user-manual/actions-file.html#SET-IMAGE-BLOCKER"
-TARGET="_top"
-><TT
-CLASS="LITERAL"
->set-image-blocker</TT
->
- action</A
->. You have the choice of a checkerboard pattern, a transparent 1x1 GIF
- image (aka <SPAN
-CLASS="QUOTE"
->"blank"</SPAN
->), or a redirect to a custom image of your choice.
- Note that this choice only has effect for images which are blocked as images, i.e.
- whose URLs match both a <TT
-CLASS="LITERAL"
-><A
-HREF="../user-manual/actions-file.html#HANDLE-AS-IMAGE"
-TARGET="_top"
->handle-as-image</A
-></TT
->
- <SPAN
-CLASS="emphasis"
-><I
-CLASS="EMPHASIS"
->and</I
-></SPAN
-> <TT
-CLASS="LITERAL"
-><A
-HREF="../user-manual/actions-file.html#BLOCK"
-TARGET="_top"
->block</A
-></TT
-> action.</P
-><P
-> If you want to see nothing, then change the <A
-HREF="../user-manual/actions-file.html#SET-IMAGE-BLOCKER"
-TARGET="_top"
-><TT
-CLASS="LITERAL"
->set-image-blocker</TT
->
- action</A
-> to <SPAN
-CLASS="QUOTE"
->"blank"</SPAN
->. This can be done by editing the
- <TT
-CLASS="FILENAME"
->user.action</TT
-> file, or through the <A
-HREF="http://config.privoxy.org/show-status"
-TARGET="_top"
->web-based actions file editor</A
->.</P
-></DIV
-><DIV
-CLASS="SECT2"
-><H3
-CLASS="SECT2"
-><A
-NAME="AEN544"
->3.14. Why would anybody want to see a checkerboard pattern?</A
-></H3
-><P
-> Remember that <A
-HREF="general.html#WHATSANAD"
->telling which image is an ad and which
- isn't</A
->, is an educated guess. While we hope that the standard configuration
- is rather smart, it will make occasional mistakes. The checkerboard image is visually
- decent, and it shows you where images have been blocked, which can be very
- helpful in case some navigation aid or otherwise innocent image was
- erroneously blocked. It is recommended for new users so they can
- <SPAN
-CLASS="QUOTE"
->"see"</SPAN
-> what is happening. Some people might also enjoy seeing how
- many banners they <SPAN
-CLASS="emphasis"
-><I
-CLASS="EMPHASIS"
->don't</I
-></SPAN
-> have to see.</P
-></DIV
-><DIV
-CLASS="SECT2"
-><H3
-CLASS="SECT2"
-><A
-NAME="AEN550"
->3.15. I see some images being replaced with text
-instead of the checkerboard image. Why and how do I get rid of this?</A
-></H3
-><P
-> This happens when the banners are not embedded in the HTML code of the
- page itself, but in separate HTML (sub)documents that are loaded into (i)frames
- or (i)layers, and these external HTML documents are blocked. Being non-images
- they get replaced by a substitute HTML page rather than a substitute image,
- which wouldn't work out technically, since the browser expects and accepts
- only HTML when it has requested an HTML document. </P
-><P
-> The substitute page adapts to the available space and shows itself as a
- miniature two-liner if loaded into small frames, or full-blown with a
- large red "BLOCKED" banner if space allows.</P
-><P
-> If you prefer the banners to be blocked by images, you must see to it that
- the HTML documents in which they are embedded are not blocked. Clicking
- the <SPAN
-CLASS="QUOTE"
->"See why"</SPAN
-> link offered in the substitute page will show
- you which rule blocked the page. After changing the rule and un-blocking
- the HTML documents, the browser will try to load the actual banner images
- and the usual image blocking will (hopefully!) kick in.</P
-></DIV
-><DIV
-CLASS="SECT2"
-><H3
-CLASS="SECT2"
-><A
-NAME="SRVANY"
->3.16. Can Privoxy run as a service
-on Win2K/NT/XP?</A
-></H3
-><P
-> Yes. Version 3.0.5 introduces full <SPAN
-CLASS="APPLICATION"
->Windows</SPAN
-> service
- functionality. See <A
-HREF="../user-manual/installation.html#installation-pack-win"
-TARGET="_top"
-> the <I
-CLASS="CITETITLE"
->User Manual</I
-></A
-> for details on how to install and configure
- <SPAN
-CLASS="APPLICATION"
->Privoxy</SPAN
-> as a service.</P
-><P
-> Earlier 3.x versions could run as a system service using <B
-CLASS="COMMAND"
->srvany.exe</B
->.
- See the discussion at <A
-HREF="http://sourceforge.net/tracker/?func=detail&atid=361118&aid=485617&group_id=11118"
-TARGET="_top"
->http://sourceforge.net/tracker/?func=detail&atid=361118&aid=485617&group_id=11118</A
->,
- for details, and a sample configuration.</P
-></DIV
-><DIV
-CLASS="SECT2"
-><H3
-CLASS="SECT2"
-><A
-NAME="OTHERPROXY"
->3.17. How can I make Privoxy work with other
-proxies like Squid or Tor?</A
-></H3
-><P
-> This can be done and is often useful to combine the benefits of
- <SPAN
-CLASS="APPLICATION"
->Privoxy</SPAN
-> with those of a another proxy.
- See the <A
-HREF="../user-manual/config.html#FORWARDING"
-TARGET="_top"
->forwarding chapter</A
->
- in the <A
-HREF="../user-manual/index.html"
-TARGET="_top"
->User Manual</A
-> which
- describes how to do this, and the <A
-HREF="misc.html#TOR"
-> How do I use Privoxy together with
- Tor</A
-> section below.</P
-></DIV
-><DIV
-CLASS="SECT2"
-><H3
-CLASS="SECT2"
-><A
-NAME="PORT-80"
->3.18. Can I just set Privoxy to use port 80
-and thus avoid individual browser configuration?</A
-></H3
-><P
-> No, its more complicated than that. This only works with special kinds
- of proxies known as <SPAN
-CLASS="QUOTE"
->"intercepting"</SPAN
-> proxies (see below).</P
-></DIV
-><DIV
-CLASS="SECT2"
-><H3
-CLASS="SECT2"
-><A
-NAME="TRANSPARENT"
->3.19. Can Privoxy run as a <SPAN
-CLASS="QUOTE"
->"transparent"</SPAN
-> proxy?</A
-></H3
-><P
-> The whole idea of Privoxy is to modify client requests
- and server responses in all sorts of ways and therefore
- it's not a transparent proxy as described in
- <A
-HREF="http://tools.ietf.org/html/rfc2616"
-TARGET="_top"
->RFC 2616</A
->.</P
-><P
-> However, some people say <SPAN
-CLASS="QUOTE"
->"transparent proxy"</SPAN
-> when they
- mean <SPAN
-CLASS="QUOTE"
->"intercepting proxy"</SPAN
->. If you are one of them,
- please read the <A
-HREF="#intercepting"
-TARGET="_top"
->next entry</A
->.</P
-></DIV
-><DIV
-CLASS="SECT2"
-><H3
-CLASS="SECT2"
-><A
-NAME="INTERCEPTING"
->3.20. Can Privoxy run as a <SPAN
-CLASS="QUOTE"
->"intercepting"</SPAN
-> proxy?</A
-></H3
-><P
-> <SPAN
-CLASS="APPLICATION"
->Privoxy</SPAN
-> can't intercept traffic itself,
- but it can handle requests that where intercepted and redirected
- with a packet filter (like <SPAN
-CLASS="APPLICATION"
->PF</SPAN
-> or
- <SPAN
-CLASS="APPLICATION"
->iptables</SPAN
->), as long as the <TT
-CLASS="LITERAL"
->Host</TT
->
- header is present.
- </P
-><P
-> As the <TT
-CLASS="LITERAL"
->Host</TT
-> header is required by HTTP/1.1 and as most
- web sites rely on it anyway, this limitation shouldn't be a problem.</P
-><P
-> Please refer to your packet filter's documentation to learn how to
- intercept and redirect traffic into <SPAN
-CLASS="APPLICATION"
->Privoxy</SPAN
->.
- Afterward you just have to configure <SPAN
-CLASS="APPLICATION"
->Privoxy</SPAN
-> to
- <A
-HREF="../user-manual/config.html#ACCEPT-INTERCEPTED-REQUESTS"
-TARGET="_top"
->accept
- intercepted requests</A
->.</P
-></DIV
-><DIV
-CLASS="SECT2"
-><H3
-CLASS="SECT2"
-><A
-NAME="OUTLOOK"
->3.21. How can I configure Privoxy for use with Outlook
- Express?</A
-></H3
-><P
-> <SPAN
-CLASS="APPLICATION"
->Outlook Express</SPAN
-> uses <SPAN
-CLASS="APPLICATION"
->Internet Explorer</SPAN
->
- components to both render HTML, and fetch any HTTP requests that may be embedded in an HTML email.
- So however you have <SPAN
-CLASS="APPLICATION"
->Privoxy</SPAN
-> configured to work
- with IE, this configuration should automatically be shared.</P
-></DIV
-><DIV
-CLASS="SECT2"
-><H3
-CLASS="SECT2"
-><A
-NAME="OUTLOOK-MORE"
->3.22. How can I have separate rules just for HTML mail?</A
-></H3
-><P
-> The short answer is, you can't. <SPAN
-CLASS="APPLICATION"
->Privoxy</SPAN
-> has no way
- of knowing which particular application makes a request, so there is no way to
- distinguish between web pages and HTML mail.
- <SPAN
-CLASS="APPLICATION"
->Privoxy</SPAN
-> just blindly proxies all requests. In the
- case of <SPAN
-CLASS="APPLICATION"
->Outlook Express</SPAN
-> (see above), OE uses
- IE anyway, and there is no way for <SPAN
-CLASS="APPLICATION"
->Privoxy</SPAN
-> to ever
- be able to distinguish between them (nor could any other proxy type application for
- that matter).</P
-><P
-> For a good discussion of some of the issues involved (including privacy and
- security issues), see
- <A
-HREF="http://sourceforge.net/tracker/?func=detail&atid=211118&aid=629518&group_id=11118"
-TARGET="_top"
->http://sourceforge.net/tracker/?func=detail&atid=211118&aid=629518&group_id=11118</A
->.</P
-></DIV
-><DIV
-CLASS="SECT2"
-><H3
-CLASS="SECT2"
-><A
-NAME="SNEAKY-COOKIES"
->3.23. I sometimes notice cookies sneaking through. How?</A
-></H3
-><P
-> <A
-HREF="http://en.wikipedia.org/wiki/Browser_cookie"
-TARGET="_top"
->Cookies</A
-> can be
- set in several ways. The classic method is via the
- <TT
-CLASS="LITERAL"
->Set-Cookie</TT
-> HTTP header. This is straightforward, and an
- easy one to manipulate, such as the <SPAN
-CLASS="APPLICATION"
->Privoxy</SPAN
-> concept of
- <A
-HREF="../user-manual/actions-file.html#SESSION-COOKIES-ONLY"
-TARGET="_top"
->session-cookies-only</A
->.
- There is also the possibility of using
- <A
-HREF="http://en.wikipedia.org/wiki/Javascript"
-TARGET="_top"
->Javascript</A
-> to
- set cookies (<SPAN
-CLASS="APPLICATION"
->Privoxy</SPAN
-> calls these <TT
-CLASS="LITERAL"
->content-cookies</TT
->). This
- is trickier because the syntax can vary widely, and thus requires a certain
- amount of guesswork. It is not realistic to catch all of these short of
- disabling Javascript, which would break many sites. And lastly, if the
- cookies are embedded in a HTTPS/SSL secure session via Javascript, they are beyond
- <SPAN
-CLASS="APPLICATION"
->Privoxy's</SPAN
-> reach.</P
-><P
-> All in all, <SPAN
-CLASS="APPLICATION"
->Privoxy</SPAN
-> can help manage cookies in general, can help minimize
- the loss of privacy posed by cookies, but can't realistically stop all
- cookies.</P
-></DIV
-><DIV
-CLASS="SECT2"
-><H3
-CLASS="SECT2"
-><A
-NAME="EVIL-COOKIES"
->3.24. Are all cookies bad? Why?</A
-></H3
-><P
-> No, in fact there are many beneficial uses of
- <A
-HREF="http://en.wikipedia.org/wiki/Browser_cookie"
-TARGET="_top"
->cookies</A
->. Cookies are just a
- method that browsers can use to store data between pages, or between browser
- sessions. Sometimes there is a good reason for this, and the user's life is a
- bit easier as a result. But there is a long history of some websites taking
- advantage of this layer of trust, and using the data they glean from you and
- your browsing habits for their own purposes, and maybe to your potential
- detriment. Such sites are using you and storing their data on your system.
- That is why the privacy conscious watch from whom those cookies come, and why
- they really <SPAN
-CLASS="emphasis"
-><I
-CLASS="EMPHASIS"
->need</I
-></SPAN
-> to be there.</P
-><P
-> See the
- <A
-HREF="http://en.wikipedia.org/wiki/Browser_cookie"
-TARGET="_top"
->Wikipedia cookie
- definition</A
-> for more.</P
-></DIV
-><DIV
-CLASS="SECT2"
-><H3
-CLASS="SECT2"
-><A
-NAME="ALLOW-COOKIES"
->3.25. How can I allow permanent cookies for my trusted sites?</A
-></H3
-><P
-> There are several actions that relate to cookies. The default behavior is to
- allow only <SPAN
-CLASS="QUOTE"
->"session cookies"</SPAN
->, which means the cookies only last
- for the current browser session. This eliminates most kinds of abuse related
- to cookies. But there may be cases where you want cookies to last.</P
-><P
-> To disable all cookie actions, so that cookies are allowed unrestricted,
- both in and out, for <TT
-CLASS="LITERAL"
->example.com</TT
->: </P
-><P
-> <TABLE
-BORDER="0"
-BGCOLOR="#E0E0E0"
-WIDTH="100%"
-><TR
-><TD
-><PRE
-CLASS="SCREEN"
-> { -crunch-incoming-cookies -crunch-outgoing-cookies -session-cookies-only -filter{content-cookies} }
- .example.com</PRE
-></TD
-></TR
-></TABLE
-></P
-><P
-> Place the above in <TT
-CLASS="FILENAME"
->user.action</TT
->. Note that some of these may
- be off by default anyway, so this might be redundant, but there is no harm
- being explicit in what you want to happen. <TT
-CLASS="FILENAME"
->user.action</TT
->
- includes an alias for this situation, called
- <TT
-CLASS="LITERAL"
->allow-all-cookies</TT
->.</P
-></DIV
-><DIV
-CLASS="SECT2"
-><H3
-CLASS="SECT2"
-><A
-NAME="MULTIPLES"
->3.26. Can I have separate configurations for different users?</A
-></H3
-><P
-> Each instance of <SPAN
-CLASS="APPLICATION"
->Privoxy</SPAN
-> has its own
- configuration, including such attributes as the TCP port that it listens on.
- What you can do is run multiple instances of <SPAN
-CLASS="APPLICATION"
->Privoxy</SPAN
->, each with
- a unique
- <A
-HREF="../user-manual/config.html#LISTEN-ADDRESS"
-TARGET="_top"
->listen-address</A
->
- configuration setting, and configuration path, and then
- each of these can have their own configurations. Think of it as per-port
- configuration.</P
-><P
->
- Simple enough for a few users, but for large installations, consider having
- groups of users that might share like configurations.</P
-></DIV
-><DIV
-CLASS="SECT2"
-><H3
-CLASS="SECT2"
-><A
-NAME="WHITELISTS"
->3.27. Can I set-up Privoxy as a whitelist of
-<SPAN
-CLASS="QUOTE"
->"good"</SPAN
-> sites?</A
-></H3
-><P
-> Sure. There are a couple of things you can do for simple white-listing.
- Here's one real easy one:</P
-><TABLE
-BORDER="0"
-BGCOLOR="#E0E0E0"
-WIDTH="100%"
-><TR
-><TD
-><PRE
-CLASS="SCREEN"
-> ############################################################
+ mail.google.com
+</pre>
+ </td>
+ </tr>
+ </table>
+
+ <p>
+ Be sure to flush your browser's caches whenever making these kinds
+ of changes, just to make sure the changes <span class=
+ "QUOTE">"take"</span>.
+ </p>
+ <p>
+ Make sure the domain, host and path are appropriate as well. Your
+ browser can tell you where you are specifically and you should use
+ that information for your configuration settings. Note that above
+ it is not referenced as <tt class="LITERAL">gmail.com</tt>, which
+ is a valid domain name.
+ </p>
+ </div>
+ <div class="SECT2">
+ <h3 class="SECT2">
+ <a name="CONFIGFILES">3.9. What's the difference between the <span
+ class="QUOTE">"Cautious"</span>, <span class=
+ "QUOTE">"Medium"</span> and <span class="QUOTE">"Advanced"</span>
+ defaults?</a>
+ </h3>
+ <p>
+ Configuring <span class="APPLICATION">Privoxy</span> is not
+ entirely trivial. To help you get started, we provide you with
+ three different default action <span class=
+ "QUOTE">"profiles"</span> in the web based actions file editor at
+ <a href="http://config.privoxy.org/show-status" target=
+ "_top">http://config.privoxy.org/show-status</a>. See the <a href=
+ "../user-manual/actions-file.html" target="_top"><i class=
+ "CITETITLE">User Manual</i></a> for a list of actions, and how the
+ default profiles are set.
+ </p>
+ <p>
+ Where the defaults are likely to break some sites, exceptions for
+ known popular <span class="QUOTE">"problem"</span> sites are
+ included, but in general, the more aggressive your default settings
+ are, the more exceptions you will have to make later. New users are
+ best to start off in <span class="QUOTE">"Cautious"</span> setting.
+ This is safest and will have the fewest problems. See the <a href=
+ "../user-manual/index.html" target="_top"><i class="CITETITLE">User
+ Manual</i></a> for a more detailed discussion.
+ </p>
+ <p>
+ It should be noted that the <span class="QUOTE">"Advanced"</span>
+ profile (formerly known as the <span class=
+ "QUOTE">"Adventuresome"</span> profile) is more aggressive, and
+ will make use of some of <span class="APPLICATION">Privoxy's</span>
+ advanced features. Use at your own risk!
+ </p>
+ </div>
+ <div class="SECT2">
+ <h3 class="SECT2">
+ <a name="BROWSECONFIG">3.10. Why can I change the configuration
+ with a browser? Does that not raise security issues?</a>
+ </h3>
+ <p>
+ It may seem strange that regular users can edit the config files
+ with their browsers, although the whole <tt class=
+ "FILENAME">/etc/privoxy</tt> hierarchy belongs to the user <span
+ class="QUOTE">"privoxy"</span>, with only 644 permissions.
+ </p>
+ <p>
+ When you use the browser-based editor, <span class=
+ "APPLICATION">Privoxy</span> itself is writing to the config files.
+ Because <span class="APPLICATION">Privoxy</span> is running as the
+ user <span class="QUOTE">"privoxy"</span>, it can update its own
+ config files.
+ </p>
+ <p>
+ If you run <span class="APPLICATION">Privoxy</span> for multiple
+ untrusted users (e.g. in a LAN) or aren't entirely in control of
+ your own browser, you will probably want to make sure that the
+ web-based editor and remote toggle features are <span class=
+ "QUOTE">"off"</span> by setting <span class="QUOTE">"<tt class=
+ "LITERAL"><a href="../user-manual/config.html#ENABLE-EDIT-ACTIONS"
+ target="_top">enable-edit-actions</a> 0</tt>"</span> and <span
+ class="QUOTE">"<tt class="LITERAL"><a href=
+ "../user-manual/config.html#ENABLE-REMOTE-TOGGLE" target=
+ "_top">enable-remote-toggle</a> 0</tt>"</span> in the <a href=
+ "../user-manual/config.html" target="_top">main configuration
+ file</a>.
+ </p>
+ <p>
+ As of <span class="APPLICATION">Privoxy</span> 3.0.7 these options
+ are disabled by default.
+ </p>
+ </div>
+ <div class="SECT2">
+ <h3 class="SECT2">
+ <a name="AEN480">3.11. What is the <tt class=
+ "FILENAME">default.filter</tt> file? What is a <span class=
+ "QUOTE">"filter"</span>?</a>
+ </h3>
+ <p>
+ The <a href="../user-manual/filter-file.html" target="_top"><tt
+ class="FILENAME">default.filter</tt></a> file is where <span class=
+ "emphasis"><i class="EMPHASIS">filters</i></span> as supplied by
+ the developers are defined. Filters are a special subset of actions
+ that can be used to modify or remove web page content or headers on
+ the fly. Content filters can be applied to <span class=
+ "emphasis"><i class="EMPHASIS">anything</i></span> in the page
+ source, header filters can be applied to either server or client
+ headers. Regular expressions are used to accomplish this.
+ </p>
+ <p>
+ There are a number of pre-defined filters to deal with common
+ annoyances. The filters are only defined here, to invoke them, you
+ need to use the <a href="../user-manual/actions-file.html#FILTER"
+ target="_top"><tt class="LITERAL">filter</tt> action</a> in one of
+ the actions files. Content filtering is automatically disabled for
+ inappropriate MIME types, but if you know better than Privoxy what
+ should or should not be filtered you can filter any content you
+ like.
+ </p>
+ <p>
+ Filters should <span class="emphasis"><i class=
+ "EMPHASIS">not</i></span> be confused with <a href=
+ "../user-manual/actions-file.html#BLOCK" target="_top"><tt class=
+ "LITERAL">blocks</tt></a>, which is a completely different action,
+ and is more typically used to block ads and unwanted sites.
+ </p>
+ <p>
+ If you are familiar with regular expressions, and HTML, you can
+ look at the provided <tt class="FILENAME">default.filter</tt> with
+ a text editor and define your own filters. This is potentially a
+ very powerful feature, but requires some expertise in both regular
+ expressions and HTML/HTTP. You should place any modifications to
+ the default filters, or any new ones you create in a separate file,
+ such as <tt class="FILENAME">user.filter</tt>, so they won't be
+ overwritten during upgrades. The ability to define multiple filter
+ files in <tt class="FILENAME">config</tt> is a new feature as of v.
+ 3.0.5.
+ </p>
+ <p>
+ There is no GUI editor option for this part of the configuration,
+ but you can disable/enable the various pre-defined filters of the
+ included <tt class="FILENAME">default.filter</tt> file with the <a
+ href="http://config.privoxy.org/show-status" target=
+ "_top">web-based actions file editor</a>. Note that the custom
+ actions editor must be explicitly enabled in the main config file
+ (see <a href="../user-manual/config.html#ENABLE-EDIT-ACTIONS"
+ target="_top">enable-edit-actions</a>).
+ </p>
+ <p>
+ If you intend to develop your own filters, you might want to have a
+ look at <a href="http://www.fabiankeil.de/sourcecode/pft/" target=
+ "_top">Privoxy-Filter-Test</a>.
+ </p>
+ </div>
+ <div class="SECT2">
+ <h3 class="SECT2">
+ <a name="LANCONFIG">3.12. How can I set up Privoxy to act as a
+ proxy for my LAN?</a>
+ </h3>
+ <p>
+ By default, <span class="APPLICATION">Privoxy</span> only responds
+ to requests from <tt class="LITERAL">127.0.0.1</tt> (localhost). To
+ have it act as a server for a network, this needs to be changed in
+ the <a href="../user-manual/config.html" target="_top">main
+ configuration file</a>. Look for the <tt class="LITERAL"><a href=
+ "../user-manual/config.html#LISTEN-ADDRESS" target=
+ "_top">listen-address</a></tt> option, which may be commented out
+ with a <span class="QUOTE">"#"</span> symbol. Make sure it is
+ uncommented, and assign it the address of the LAN gateway
+ interface, and port number to use. Assuming your LAN address is
+ 192.168.1.1 and you wish to run <span class=
+ "APPLICATION">Privoxy</span> on port 8118, this line should look
+ like:
+ </p>
+ <p>
+ </p>
+ <table border="0" bgcolor="#E0E0E0" width="100%">
+ <tr>
+ <td>
+<pre class="SCREEN">
+ listen-address 192.168.1.1:8118
+</pre>
+ </td>
+ </tr>
+ </table>
+
+ <p>
+ Save the file, and restart <span class=
+ "APPLICATION">Privoxy</span>. Configure all browsers on the network
+ then to use this address and port number.
+ </p>
+ <p>
+ Alternately, you can have <span class="APPLICATION">Privoxy</span>
+ listen on all available interfaces:
+ </p>
+ <p>
+ </p>
+ <table border="0" bgcolor="#E0E0E0" width="100%">
+ <tr>
+ <td>
+<pre class="SCREEN">
+ listen-address :8118
+</pre>
+ </td>
+ </tr>
+ </table>
+
+ <p>
+ And then use <span class="APPLICATION">Privoxy's</span> <a href=
+ "../user-manual/config.html#PERMIT-ACCESS" target=
+ "_top">permit-access</a> feature to limit connections. A firewall
+ in this situation is recommended as well.
+ </p>
+ <p>
+ The above steps should be the same for any TCP network, regardless
+ of operating system.
+ </p>
+ <p>
+ If you run <span class="APPLICATION">Privoxy</span> on a LAN with
+ untrusted users, we recommend that you double-check the <a href=
+ "../user-manual/config.html#ACCESS-CONTROL" target="_top">access
+ control and security</a> options!
+ </p>
+ </div>
+ <div class="SECT2">
+ <h3 class="SECT2">
+ <a name="AEN531">3.13. Instead of ads, now I get a checkerboard
+ pattern. I don't want to see anything.</a>
+ </h3>
+ <p>
+ The replacement for blocked images can be controlled with the <a
+ href="../user-manual/actions-file.html#SET-IMAGE-BLOCKER" target=
+ "_top"><tt class="LITERAL">set-image-blocker</tt> action</a>. You
+ have the choice of a checkerboard pattern, a transparent 1x1 GIF
+ image (aka <span class="QUOTE">"blank"</span>), or a redirect to a
+ custom image of your choice. Note that this choice only has effect
+ for images which are blocked as images, i.e. whose URLs match both
+ a <tt class="LITERAL"><a href=
+ "../user-manual/actions-file.html#HANDLE-AS-IMAGE" target=
+ "_top">handle-as-image</a></tt> <span class="emphasis"><i class=
+ "EMPHASIS">and</i></span> <tt class="LITERAL"><a href=
+ "../user-manual/actions-file.html#BLOCK" target=
+ "_top">block</a></tt> action.
+ </p>
+ <p>
+ If you want to see nothing, then change the <a href=
+ "../user-manual/actions-file.html#SET-IMAGE-BLOCKER" target=
+ "_top"><tt class="LITERAL">set-image-blocker</tt> action</a> to
+ <span class="QUOTE">"blank"</span>. This can be done by editing the
+ <tt class="FILENAME">user.action</tt> file, or through the <a href=
+ "http://config.privoxy.org/show-status" target="_top">web-based
+ actions file editor</a>.
+ </p>
+ </div>
+ <div class="SECT2">
+ <h3 class="SECT2">
+ <a name="AEN548">3.14. Why would anybody want to see a checkerboard
+ pattern?</a>
+ </h3>
+ <p>
+ Remember that <a href="general.html#WHATSANAD">telling which image
+ is an ad and which isn't</a>, is an educated guess. While we hope
+ that the standard configuration is rather smart, it will make
+ occasional mistakes. The checkerboard image is visually decent, and
+ it shows you where images have been blocked, which can be very
+ helpful in case some navigation aid or otherwise innocent image was
+ erroneously blocked. It is recommended for new users so they can
+ <span class="QUOTE">"see"</span> what is happening. Some people
+ might also enjoy seeing how many banners they <span class=
+ "emphasis"><i class="EMPHASIS">don't</i></span> have to see.
+ </p>
+ </div>
+ <div class="SECT2">
+ <h3 class="SECT2">
+ <a name="AEN554">3.15. I see some images being replaced with text
+ instead of the checkerboard image. Why and how do I get rid of
+ this?</a>
+ </h3>
+ <p>
+ This happens when the banners are not embedded in the HTML code of
+ the page itself, but in separate HTML (sub)documents that are
+ loaded into (i)frames or (i)layers, and these external HTML
+ documents are blocked. Being non-images they get replaced by a
+ substitute HTML page rather than a substitute image, which wouldn't
+ work out technically, since the browser expects and accepts only
+ HTML when it has requested an HTML document.
+ </p>
+ <p>
+ The substitute page adapts to the available space and shows itself
+ as a miniature two-liner if loaded into small frames, or full-blown
+ with a large red "BLOCKED" banner if space allows.
+ </p>
+ <p>
+ If you prefer the banners to be blocked by images, you must see to
+ it that the HTML documents in which they are embedded are not
+ blocked. Clicking the <span class="QUOTE">"See why"</span> link
+ offered in the substitute page will show you which rule blocked the
+ page. After changing the rule and un-blocking the HTML documents,
+ the browser will try to load the actual banner images and the usual
+ image blocking will (hopefully!) kick in.
+ </p>
+ </div>
+ <div class="SECT2">
+ <h3 class="SECT2">
+ <a name="SRVANY">3.16. Can Privoxy run as a service on
+ Win2K/NT/XP?</a>
+ </h3>
+ <p>
+ Yes. Version 3.0.5 introduces full <span class=
+ "APPLICATION">Windows</span> service functionality. See <a href=
+ "../user-manual/installation.html#installation-pack-win" target=
+ "_top">the <i class="CITETITLE">User Manual</i></a> for details on
+ how to install and configure <span class=
+ "APPLICATION">Privoxy</span> as a service.
+ </p>
+ <p>
+ Earlier 3.x versions could run as a system service using <b class=
+ "COMMAND">srvany.exe</b>. See the discussion at <a href=
+ "http://sourceforge.net/tracker/?func=detail&atid=361118&aid=485617&group_id=11118"
+ target=
+ "_top">http://sourceforge.net/tracker/?func=detail&atid=361118&aid=485617&group_id=11118</a>,
+ for details, and a sample configuration.
+ </p>
+ </div>
+ <div class="SECT2">
+ <h3 class="SECT2">
+ <a name="OTHERPROXY">3.17. How can I make Privoxy work with other
+ proxies?</a>
+ </h3>
+ <p>
+ This can be done and is often useful to combine the benefits of
+ <span class="APPLICATION">Privoxy</span> with those of a another
+ proxy, for example to cache content. See the <a href=
+ "../user-manual/config.html#FORWARDING" target="_top">forwarding
+ chapter</a> in the <a href="../user-manual/index.html" target=
+ "_top">User Manual</a> which describes how to do this. If you
+ intend to use Privoxy with Tor, please also have a look at <a href=
+ "misc.html#TOR">How do I use Privoxy together with Tor</a>.
+ </p>
+ </div>
+ <div class="SECT2">
+ <h3 class="SECT2">
+ <a name="PORT-80">3.18. Can I just set Privoxy to use port 80 and
+ thus avoid individual browser configuration?</a>
+ </h3>
+ <p>
+ No, its more complicated than that. This only works with special
+ kinds of proxies known as <span class="QUOTE">"intercepting"</span>
+ proxies (<a href="configuration.html#INTERCEPTING">see below</a>).
+ </p>
+ </div>
+ <div class="SECT2">
+ <h3 class="SECT2">
+ <a name="TRANSPARENT">3.19. Can Privoxy run as a <span class=
+ "QUOTE">"transparent"</span> proxy?</a>
+ </h3>
+ <p>
+ The whole idea of Privoxy is to modify client requests and server
+ responses in all sorts of ways and therefore it's not a transparent
+ proxy as described in <a href="http://tools.ietf.org/html/rfc2616"
+ target="_top">RFC 2616</a>.
+ </p>
+ <p>
+ However, some people say <span class="QUOTE">"transparent
+ proxy"</span> when they mean <span class="QUOTE">"intercepting
+ proxy"</span>. If you are one of them, please read the <a href=
+ "configuration.html#INTERCEPTING">next entry</a>.
+ </p>
+ </div>
+ <div class="SECT2">
+ <h3 class="SECT2">
+ <a name="INTERCEPTING">3.20. Can Privoxy run as a <span class=
+ "QUOTE">"intercepting"</span> proxy?</a>
+ </h3>
+ <p>
+ <span class="APPLICATION">Privoxy</span> can't intercept traffic
+ itself, but it can handle requests that where intercepted and
+ redirected with a packet filter (like <span class=
+ "APPLICATION">PF</span> or <span class=
+ "APPLICATION">iptables</span>), as long as the <tt class=
+ "LITERAL">Host</tt> header is present.
+ </p>
+ <p>
+ As the <tt class="LITERAL">Host</tt> header is required by HTTP/1.1
+ and as most web sites rely on it anyway, this limitation shouldn't
+ be a problem.
+ </p>
+ <p>
+ Please refer to your packet filter's documentation to learn how to
+ intercept and redirect traffic into <span class=
+ "APPLICATION">Privoxy</span>. Afterward you just have to configure
+ <span class="APPLICATION">Privoxy</span> to <a href=
+ "../user-manual/config.html#ACCEPT-INTERCEPTED-REQUESTS" target=
+ "_top">accept intercepted requests</a>.
+ </p>
+ </div>
+ <div class="SECT2">
+ <h3 class="SECT2">
+ <a name="OUTLOOK">3.21. How can I configure Privoxy for use with
+ Outlook?</a>
+ </h3>
+ <p>
+ Versions of <span class="APPLICATION">Outlook</span> prior to
+ Office 2007, use <span class="APPLICATION">Internet Explorer</span>
+ components to both render HTML, and fetch any HTTP requests that
+ may be embedded in an HTML email. So however you have <span class=
+ "APPLICATION">Privoxy</span> configured to work with IE, this
+ configuration should automatically be shared, at least with older
+ version of Internet Explorer.
+ </p>
+ <p>
+ Starting with Office 2007, Microsoft is instead using the MS-Word
+ rendering engine with Outlook. It is unknown whether this can be
+ configured to use a proxy.
+ </p>
+ </div>
+ <div class="SECT2">
+ <h3 class="SECT2">
+ <a name="OUTLOOK-MORE">3.22. How can I have separate rules just for
+ HTML mail?</a>
+ </h3>
+ <p>
+ The short answer is, you can't. <span class=
+ "APPLICATION">Privoxy</span> has no way of knowing which particular
+ application makes a request, so there is no way to distinguish
+ between web pages and HTML mail. <span class=
+ "APPLICATION">Privoxy</span> just blindly proxies all requests. In
+ the case of <span class="APPLICATION">Outlook Express</span> (see
+ above), OE uses IE anyway, and there is no way for <span class=
+ "APPLICATION">Privoxy</span> to ever be able to distinguish between
+ them (nor could any other proxy type application for that matter).
+ </p>
+ <p>
+ For a good discussion of some of the issues involved (including
+ privacy and security issues), see <a href=
+ "http://sourceforge.net/tracker/?func=detail&atid=211118&aid=629518&group_id=11118"
+ target=
+ "_top">http://sourceforge.net/tracker/?func=detail&atid=211118&aid=629518&group_id=11118</a>.
+ </p>
+ </div>
+ <div class="SECT2">
+ <h3 class="SECT2">
+ <a name="SNEAKY-COOKIES">3.23. I sometimes notice cookies sneaking
+ through. How?</a>
+ </h3>
+ <p>
+ <a href="http://en.wikipedia.org/wiki/Browser_cookie" target=
+ "_top">Cookies</a> can be set in several ways. The classic method
+ is via the <tt class="LITERAL">Set-Cookie</tt> HTTP header. This is
+ straightforward, and an easy one to manipulate, such as the <span
+ class="APPLICATION">Privoxy</span> concept of <a href=
+ "../user-manual/actions-file.html#SESSION-COOKIES-ONLY" target=
+ "_top">session-cookies-only</a>. There is also the possibility of
+ using <a href="http://en.wikipedia.org/wiki/Javascript" target=
+ "_top">Javascript</a> to set cookies (<span class=
+ "APPLICATION">Privoxy</span> calls these <tt class=
+ "LITERAL">content-cookies</tt>). This is trickier because the
+ syntax can vary widely, and thus requires a certain amount of
+ guesswork. It is not realistic to catch all of these short of
+ disabling Javascript, which would break many sites. And lastly, if
+ the cookies are embedded in a HTTPS/SSL secure session via
+ Javascript, they are beyond <span class=
+ "APPLICATION">Privoxy's</span> reach.
+ </p>
+ <p>
+ All in all, <span class="APPLICATION">Privoxy</span> can help
+ manage cookies in general, can help minimize the loss of privacy
+ posed by cookies, but can't realistically stop all cookies.
+ </p>
+ </div>
+ <div class="SECT2">
+ <h3 class="SECT2">
+ <a name="EVIL-COOKIES">3.24. Are all cookies bad? Why?</a>
+ </h3>
+ <p>
+ No, in fact there are many beneficial uses of <a href=
+ "http://en.wikipedia.org/wiki/Browser_cookie" target=
+ "_top">cookies</a>. Cookies are just a method that browsers can use
+ to store data between pages, or between browser sessions. Sometimes
+ there is a good reason for this, and the user's life is a bit
+ easier as a result. But there is a long history of some websites
+ taking advantage of this layer of trust, and using the data they
+ glean from you and your browsing habits for their own purposes, and
+ maybe to your potential detriment. Such sites are using you and
+ storing their data on your system. That is why the privacy
+ conscious watch from whom those cookies come, and why they really
+ <span class="emphasis"><i class="EMPHASIS">need</i></span> to be
+ there.
+ </p>
+ <p>
+ See the <a href="http://en.wikipedia.org/wiki/Browser_cookie"
+ target="_top">Wikipedia cookie definition</a> for more.
+ </p>
+ </div>
+ <div class="SECT2">
+ <h3 class="SECT2">
+ <a name="ALLOW-COOKIES">3.25. How can I allow permanent cookies for
+ my trusted sites?</a>
+ </h3>
+ <p>
+ There are several actions that relate to cookies. The default
+ behavior is to allow only <span class="QUOTE">"session
+ cookies"</span>, which means the cookies only last for the current
+ browser session. This eliminates most kinds of abuse related to
+ cookies. But there may be cases where you want cookies to last.
+ </p>
+ <p>
+ To disable all cookie actions, so that cookies are allowed
+ unrestricted, both in and out, for <tt class=
+ "LITERAL">example.com</tt>:
+ </p>
+ <p>
+ </p>
+ <table border="0" bgcolor="#E0E0E0" width="100%">
+ <tr>
+ <td>
+<pre class="SCREEN">
+ { -crunch-incoming-cookies -crunch-outgoing-cookies -session-cookies-only -filter{content-cookies} }
+ .example.com
+</pre>
+ </td>
+ </tr>
+ </table>
+
+ <p>
+ Place the above in <tt class="FILENAME">user.action</tt>. Note that
+ some of these may be off by default anyway, so this might be
+ redundant, but there is no harm being explicit in what you want to
+ happen. <tt class="FILENAME">user.action</tt> includes an alias for
+ this situation, called <tt class="LITERAL">allow-all-cookies</tt>.
+ </p>
+ </div>
+ <div class="SECT2">
+ <h3 class="SECT2">
+ <a name="MULTIPLES">3.26. Can I have separate configurations for
+ different users?</a>
+ </h3>
+ <p>
+ Each instance of <span class="APPLICATION">Privoxy</span> has its
+ own configuration, including such attributes as the TCP port that
+ it listens on. What you can do is run multiple instances of <span
+ class="APPLICATION">Privoxy</span>, each with a unique <a href=
+ "../user-manual/config.html#LISTEN-ADDRESS" target=
+ "_top">listen-address</a> configuration setting, and configuration
+ path, and then each of these can have their own configurations.
+ Think of it as per-port configuration.
+ </p>
+ <p>
+ Simple enough for a few users, but for large installations,
+ consider having groups of users that might share like
+ configurations.
+ </p>
+ </div>
+ <div class="SECT2">
+ <h3 class="SECT2">
+ <a name="WHITELISTS">3.27. Can I set-up Privoxy as a whitelist of
+ <span class="QUOTE">"good"</span> sites?</a>
+ </h3>
+ <p>
+ Sure. There are a couple of things you can do for simple
+ white-listing. Here's one real easy one:
+ </p>
+ <table border="0" bgcolor="#E0E0E0" width="100%">
+ <tr>
+ <td>
+<pre class="SCREEN">
+ ############################################################
# Blacklist
############################################################
- { <A
-HREF="../user-manual/actions-file.html#BLOCK"
-TARGET="_top"
->+block</A
-> }
+ { <a href="../user-manual/actions-file.html#BLOCK" target=
+"_top">+block</a> }
/ # Block *all* URLs
-
+
############################################################
# Whitelist
############################################################
- { <A
-HREF="../user-manual/actions-file.html#BLOCK"
-TARGET="_top"
->-block</A
-> }
+ { <a href="../user-manual/actions-file.html#BLOCK" target=
+"_top">-block</a> }
kids.example.com
toys.example.com
- games.example.com</PRE
-></TD
-></TR
-></TABLE
-><P
-> This allows access to only those three sites by first blocking all URLs, and
- then subsequently allowing three specific exceptions.</P
-><P
-> Another approach is <SPAN
-CLASS="APPLICATION"
->Privoxy's</SPAN
->
- <TT
-CLASS="LITERAL"
->trustfile</TT
-> concept, which incorporates the notion of
- <SPAN
-CLASS="QUOTE"
->"trusted referrers"</SPAN
->. See the <A
-HREF="../user-manual/config.html#TRUSTFILE"
-TARGET="_top"
->Trust documentation</A
->
- for details.</P
-><P
-> These are fairly simple approaches and are not completely foolproof. There
- are various other configuration options that should be disabled (described
- elsewhere here and in <A
-HREF="../user-manual/"
-TARGET="_top"
->the User Manual</A
->)
- so that users can't modify their own configuration and easily circumvent the
- whitelist.</P
-></DIV
-><DIV
-CLASS="SECT2"
-><H3
-CLASS="SECT2"
-><A
-NAME="NO-ADBLOCK"
->3.28. How can I turn off ad-blocking?</A
-></H3
-><P
-> Ad blocking is achieved through a complex application of various <SPAN
-CLASS="APPLICATION"
->Privoxy</SPAN
->
- <A
-HREF="../user-manual/actions-file.html"
-TARGET="_top"
->actions</A
->. These
- actions are deployed against simple images, banners, flash animations,
- text pages, JavaScript, pop-ups and pop-unders, etc., so its not as simple as
- just turning one or two actions off. The various actions that make up
- <SPAN
-CLASS="APPLICATION"
->Privoxy</SPAN
-> ad blocking are hard-coded into the default configuration files. It
- has been assumed that everyone using <SPAN
-CLASS="APPLICATION"
->Privoxy</SPAN
-> is interested in this
- particular feature.
- </P
-><P
-> If you want to do without this, there are several approaches you can take:
- You can manually undo the many block rules in
- <TT
-CLASS="FILENAME"
->default.action</TT
->. Or even easier, just create your own
- <TT
-CLASS="FILENAME"
->default.action</TT
-> file from scratch without the many ad
- blocking rules, and corresponding exceptions. Or lastly, if you are not
- concerned about the additional blocks that are done for privacy reasons, you
- can very easily over-ride <SPAN
-CLASS="emphasis"
-><I
-CLASS="EMPHASIS"
->all</I
-></SPAN
-> blocking with the
- following very simple rule in your <TT
-CLASS="FILENAME"
->user.action</TT
->:
- </P
-><P
-> <TABLE
-BORDER="0"
-BGCOLOR="#E0E0E0"
-WIDTH="100%"
-><TR
-><TD
-><PRE
-CLASS="SCREEN"
-> # Unblock everybody, everywhere
- { <A
-HREF="../user-manual/actions-file.html#BLOCK"
-TARGET="_top"
->-block</A
-> }
- / # UN-Block *all* URLs</PRE
-></TD
-></TR
-></TABLE
-></P
-><P
->
- Or even a more comprehensive reversing of various ad related actions:</P
-><P
-> <TABLE
-BORDER="0"
-BGCOLOR="#E0E0E0"
-WIDTH="100%"
-><TR
-><TD
-><PRE
-CLASS="SCREEN"
-> # Unblock everybody, everywhere, and turn off appropriate filtering, etc
- { <A
-HREF="../user-manual/actions-file.html#BLOCK"
-TARGET="_top"
->-block</A
-> \
- <A
-HREF="../user-manual/actions-file.html#FILTER-BANNERS-BY-SIZE"
-TARGET="_top"
->-filter{banners-by-size}</A
-> \
- <A
-HREF="../user-manual/actions-file.html#FILTER-BANNERS-BY-LINK"
-TARGET="_top"
->-filter{banners-by-link}</A
-> \
- <TT
-CLASS="LITERAL"
->allow-popups</TT
-> \
+ games.example.com
+</pre>
+ </td>
+ </tr>
+ </table>
+ <p>
+ This allows access to only those three sites by first blocking all
+ URLs, and then subsequently allowing three specific exceptions.
+ </p>
+ <p>
+ Another approach is <span class="APPLICATION">Privoxy's</span> <tt
+ class="LITERAL">trustfile</tt> concept, which incorporates the
+ notion of <span class="QUOTE">"trusted referrers"</span>. See the
+ <a href="../user-manual/config.html#TRUSTFILE" target="_top">Trust
+ documentation</a> for details.
+ </p>
+ <p>
+ These are fairly simple approaches and are not completely
+ foolproof. There are various other configuration options that
+ should be disabled (described elsewhere here and in <a href=
+ "../user-manual/" target="_top">the User Manual</a>) so that users
+ can't modify their own configuration and easily circumvent the
+ whitelist.
+ </p>
+ </div>
+ <div class="SECT2">
+ <h3 class="SECT2">
+ <a name="NO-ADBLOCK">3.28. How can I turn off ad-blocking?</a>
+ </h3>
+ <p>
+ Ad blocking is achieved through a complex application of various
+ <span class="APPLICATION">Privoxy</span> <a href=
+ "../user-manual/actions-file.html" target="_top">actions</a>. These
+ actions are deployed against simple images, banners, flash
+ animations, text pages, JavaScript, pop-ups and pop-unders, etc.,
+ so its not as simple as just turning one or two actions off. The
+ various actions that make up <span class=
+ "APPLICATION">Privoxy</span> ad blocking are hard-coded into the
+ default configuration files. It has been assumed that everyone
+ using <span class="APPLICATION">Privoxy</span> is interested in
+ this particular feature.
+ </p>
+ <p>
+ If you want to do without this, there are several approaches you
+ can take: You can manually undo the many block rules in <tt class=
+ "FILENAME">default.action</tt>. Or even easier, just create your
+ own <tt class="FILENAME">default.action</tt> file from scratch
+ without the many ad blocking rules, and corresponding exceptions.
+ Or lastly, if you are not concerned about the additional blocks
+ that are done for privacy reasons, you can very easily over-ride
+ <span class="emphasis"><i class="EMPHASIS">all</i></span> blocking
+ with the following very simple rule in your <tt class=
+ "FILENAME">user.action</tt>:
+ </p>
+ <p>
+ </p>
+ <table border="0" bgcolor="#E0E0E0" width="100%">
+ <tr>
+ <td>
+<pre class="SCREEN">
+ # Unblock everybody, everywhere
+ { <a href="../user-manual/actions-file.html#BLOCK" target=
+"_top">-block</a> }
+ / # UN-Block *all* URLs
+</pre>
+ </td>
+ </tr>
+ </table>
+
+ <p>
+ Or even a more comprehensive reversing of various ad related
+ actions:
+ </p>
+ <p>
+ </p>
+ <table border="0" bgcolor="#E0E0E0" width="100%">
+ <tr>
+ <td>
+<pre class="SCREEN">
+ # Unblock everybody, everywhere, and turn off appropriate filtering, etc
+ { <a href="../user-manual/actions-file.html#BLOCK" target=
+"_top">-block</a> \
+ <a href="../user-manual/actions-file.html#FILTER-BANNERS-BY-SIZE" target=
+"_top">-filter{banners-by-size}</a> \
+ <a href="../user-manual/actions-file.html#FILTER-BANNERS-BY-LINK" target=
+"_top">-filter{banners-by-link}</a> \
+ <tt class="LITERAL">allow-popups</tt> \
}
- / # UN-Block *all* URLs and allow ads</PRE
-></TD
-></TR
-></TABLE
-></P
-><P
-> This last <SPAN
-CLASS="QUOTE"
->"action"</SPAN
-> in this compound statement,
- <TT
-CLASS="LITERAL"
->allow-popups</TT
->, is an <A
-HREF="../user-manual/actions-file.html#ALIASES"
-TARGET="_top"
->alias</A
-> that disables
- various pop-up blocking features.</P
-></DIV
-><DIV
-CLASS="SECT2"
-><H3
-CLASS="SECT2"
-><A
-NAME="TEMPLATES"
->3.29. How can I have custom template pages, like the
-<SPAN
-CLASS="emphasis"
-><I
-CLASS="EMPHASIS"
->BLOCKED</I
-></SPAN
-> page?</A
-></H3
-><P
-> <SPAN
-CLASS="APPLICATION"
->Privoxy</SPAN
-> <SPAN
-CLASS="QUOTE"
->"templates"</SPAN
-> are specialized text files utilized by
- <SPAN
-CLASS="APPLICATION"
->Privoxy</SPAN
-> for various purposes and can easily be modified using any text
- editor. All the template pages are installed in a sub-directory appropriately
- named: <TT
-CLASS="FILENAME"
->templates</TT
->. Knowing something about HTML syntax
- will of course be helpful.</P
-><P
-> Be forewarned that the default templates are subject to being overwritten
- during upgrades. You can, however, create completely new templates,
- place them in another directory and specify the alternate path in the main
- <TT
-CLASS="FILENAME"
->config</TT
->. For details, have a look at the <A
-HREF="../user-manual/config.html#templdir"
-TARGET="_top"
->templdir</A
-> option. </P
-></DIV
-><DIV
-CLASS="SECT2"
-><H3
-CLASS="SECT2"
-><A
-NAME="BLOCKALL"
->3.30. How can I remove the <SPAN
-CLASS="QUOTE"
->"Go There Anyway"</SPAN
-> link from
-the <SPAN
-CLASS="emphasis"
-><I
-CLASS="EMPHASIS"
->BLOCKED</I
-></SPAN
-> page?</A
-></H3
-><P
-> There is more than one way to do it (although Perl is not involved).</P
-><P
-> Editing the BLOCKED template page (see above) may dissuade some users, but
- this method is easily circumvented. Where you need this level of control, you
- might want to build <SPAN
-CLASS="APPLICATION"
->Privoxy</SPAN
-> from source, and disable various features that are
- available as compile-time options. You should
- <B
-CLASS="COMMAND"
->configure</B
-> the sources as follows:</P
-><P
-> <TABLE
-BORDER="0"
-BGCOLOR="#E0E0E0"
-WIDTH="100%"
-><TR
-><TD
-><PRE
-CLASS="SCREEN"
-> ./configure --disable-toggle --disable-editor --disable-force</PRE
-></TD
-></TR
-></TABLE
-></P
-><P
-> This will create an executable with hard-coded security features so that
- <SPAN
-CLASS="APPLICATION"
->Privoxy</SPAN
-> does not allow easy bypassing of blocked sites, or changing the
- current configuration via any connected user's web browser.</P
-><P
-> Finally, all of these features can also be toggled on/off via options in
- <SPAN
-CLASS="APPLICATION"
->Privoxy's</SPAN
-> main <A
-HREF="../user-manual/config.html#ACCESS-CONTROL"
-TARGET="_top"
->config</A
-> file which
- means you don't have to recompile anything.</P
-></DIV
-></DIV
-><DIV
-CLASS="NAVFOOTER"
-><HR
-ALIGN="LEFT"
-WIDTH="100%"><TABLE
-SUMMARY="Footer navigation table"
-WIDTH="100%"
-BORDER="0"
-CELLPADDING="0"
-CELLSPACING="0"
-><TR
-><TD
-WIDTH="33%"
-ALIGN="left"
-VALIGN="top"
-><A
-HREF="installation.html"
-ACCESSKEY="P"
->Prev</A
-></TD
-><TD
-WIDTH="34%"
-ALIGN="center"
-VALIGN="top"
-><A
-HREF="index.html"
-ACCESSKEY="H"
->Home</A
-></TD
-><TD
-WIDTH="33%"
-ALIGN="right"
-VALIGN="top"
-><A
-HREF="misc.html"
-ACCESSKEY="N"
->Next</A
-></TD
-></TR
-><TR
-><TD
-WIDTH="33%"
-ALIGN="left"
-VALIGN="top"
->Installation</TD
-><TD
-WIDTH="34%"
-ALIGN="center"
-VALIGN="top"
-> </TD
-><TD
-WIDTH="33%"
-ALIGN="right"
-VALIGN="top"
->Miscellaneous</TD
-></TR
-></TABLE
-></DIV
-></BODY
-></HTML
->
\ No newline at end of file
+ / # UN-Block *all* URLs and allow ads
+</pre>
+ </td>
+ </tr>
+ </table>
+
+ <p>
+ This last <span class="QUOTE">"action"</span> in this compound
+ statement, <tt class="LITERAL">allow-popups</tt>, is an <a href=
+ "../user-manual/actions-file.html#ALIASES" target="_top">alias</a>
+ that disables various pop-up blocking features.
+ </p>
+ </div>
+ <div class="SECT2">
+ <h3 class="SECT2">
+ <a name="TEMPLATES">3.29. How can I have custom template pages,
+ like the <span class="emphasis"><i class=
+ "EMPHASIS">BLOCKED</i></span> page?</a>
+ </h3>
+ <p>
+ <span class="APPLICATION">Privoxy</span> <span class=
+ "QUOTE">"templates"</span> are specialized text files utilized by
+ <span class="APPLICATION">Privoxy</span> for various purposes and
+ can easily be modified using any text editor. All the template
+ pages are installed in a sub-directory appropriately named: <tt
+ class="FILENAME">templates</tt>. Knowing something about HTML
+ syntax will of course be helpful.
+ </p>
+ <p>
+ Be forewarned that the default templates are subject to being
+ overwritten during upgrades. You can, however, create completely
+ new templates, place them in another directory and specify the
+ alternate path in the main <tt class="FILENAME">config</tt>. For
+ details, have a look at the <a href=
+ "../user-manual/config.html#templdir" target="_top">templdir</a>
+ option.
+ </p>
+ </div>
+ <div class="SECT2">
+ <h3 class="SECT2">
+ <a name="BLOCKALL">3.30. How can I remove the <span class=
+ "QUOTE">"Go There Anyway"</span> link from the <span class=
+ "emphasis"><i class="EMPHASIS">BLOCKED</i></span> page?</a>
+ </h3>
+ <p>
+ There is more than one way to do it (although Perl is not
+ involved).
+ </p>
+ <p>
+ Editing the BLOCKED template page (see above) may dissuade some
+ users, but this method is easily circumvented. Where you need this
+ level of control, you might want to build <span class=
+ "APPLICATION">Privoxy</span> from source, and disable various
+ features that are available as compile-time options. You should <b
+ class="COMMAND">configure</b> the sources as follows:
+ </p>
+ <p>
+ </p>
+ <table border="0" bgcolor="#E0E0E0" width="100%">
+ <tr>
+ <td>
+<pre class="SCREEN">
+ ./configure --disable-toggle --disable-editor --disable-force
+</pre>
+ </td>
+ </tr>
+ </table>
+
+ <p>
+ This will create an executable with hard-coded security features so
+ that <span class="APPLICATION">Privoxy</span> does not allow easy
+ bypassing of blocked sites, or changing the current configuration
+ via any connected user's web browser.
+ </p>
+ <p>
+ Finally, all of these features can also be toggled on/off via
+ options in <span class="APPLICATION">Privoxy's</span> main <a href=
+ "../user-manual/config.html#ACCESS-CONTROL" target=
+ "_top">config</a> file which means you don't have to recompile
+ anything.
+ </p>
+ </div>
+ </div>
+ <div class="NAVFOOTER">
+ <hr width="100%" class="c1">
+ <table summary="Footer navigation table" width="100%" border="0"
+ cellpadding="0" cellspacing="0">
+ <tr>
+ <td width="33%" align="left" valign="top">
+ <a href="installation.html" accesskey="P">Prev</a>
+ </td>
+ <td width="34%" align="center" valign="top">
+ <a href="index.html" accesskey="H">Home</a>
+ </td>
+ <td width="33%" align="right" valign="top">
+ <a href="misc.html" accesskey="N">Next</a>
+ </td>
+ </tr>
+ <tr>
+ <td width="33%" align="left" valign="top">
+ Installation
+ </td>
+ <td width="34%" align="center" valign="top">
+
+ </td>
+ <td width="33%" align="right" valign="top">
+ Miscellaneous
+ </td>
+ </tr>
+ </table>
+ </div>
+ </body>
+</html>
+
projects / privoxy.git / blobdiff