X-Git-Url: http://www.privoxy.org/gitweb/?p=privoxy.git;a=blobdiff_plain;f=doc%2Fsource%2Fp-config.sgml;h=e9e8310f94d0e7cd9bc7b854a4901cdd39ea0ba5;hp=3092b00ab4024a9a53708d90e3beaca0ff94c551;hb=53704ce1e734b0cbcf86ee262c8e38c0c3b2651c;hpb=43ec91f4b57e37209dc82e7515620c3706a3a558 diff --git a/doc/source/p-config.sgml b/doc/source/p-config.sgml index 3092b00a..e9e8310f 100644 --- a/doc/source/p-config.sgml +++ b/doc/source/p-config.sgml @@ -1,11 +1,9 @@ @@ - Sample Configuration File for Privoxy v&p-version; + Sample Configuration File for Privoxy &p-version; - $Id: p-config.sgml,v 2.88 2012/11/11 12:30:18 fabiankeil Exp $ - - -Copyright (C) 2001-2011 Privoxy Developers http://www.privoxy.org/ - - - - -################################################################# - # - Table of Contents # - # - I. INTRODUCTION # - II. FORMAT OF THE CONFIGURATION FILE # - # - 1. LOCAL SET-UP DOCUMENTATION # - 2. CONFIGURATION AND LOG FILE LOCATIONS # - 3. DEBUGGING # - 4. ACCESS CONTROL AND SECURITY # - 5. FORWARDING # - 6. WINDOWS GUI OPTIONS # - # -################################################################# - +Copyright (C) 2001-2020 Privoxy Developers https://www.privoxy.org/ -I. INTRODUCTION - =============== + +################################################################## + # + Table of Contents # + # + I. INTRODUCTION # + II. FORMAT OF THE CONFIGURATION FILE # + # + 1. LOCAL SET-UP DOCUMENTATION # + 2. CONFIGURATION AND LOG FILE LOCATIONS # + 3. DEBUGGING # + 4. ACCESS CONTROL AND SECURITY # + 5. FORWARDING # + 6. MISCELLANEOUS # + 7. HTTPS INSPECTION (EXPERIMENTAL) # + 8. WINDOWS GUI OPTIONS # + # +################################################################## + + +I. INTRODUCTION + =============== + This file holds Privoxy's main configuration. Privoxy detects @@ -228,7 +219,7 @@ II. FORMAT OF THE CONFIGURATION FILE Effect if unset: - http://www.privoxy.org/version/user-manual/ + https://www.privoxy.org/version/user-manual/ will be used, where version is the Privoxy version. @@ -250,30 +241,22 @@ II. FORMAT OF THE CONFIGURATION FILE Unix, in local filesystem (may not work with all browsers): -   user-manual  file:///usr/share/doc/privoxy-&p-version;/user-manual/ - Windows, in local filesystem, must use forward slash notation: -   user-manual  file:/c:/some-dir/privoxy-&p-version;/user-manual/ - Windows, UNC notation (with forward slashes): -   user-manual  file://///some-server/some-path/privoxy-&p-version;/user-manual/ - --> The best all purpose solution is simply to put the full local PATH to where the User Manual is located: - -   user-manual  /usr/share/doc/privoxy/user-manual - + user-manual /usr/share/doc/privoxy/user-manual The User Manual is then available to anyone with access to Privoxy, by following the built-in URL: @@ -284,9 +267,7 @@ II. FORMAT OF THE CONFIGURATION FILE If the documentation is not on the local system, it can be accessed from a remote server, as: - -   user-manual  http://example.com/privoxy/user-manual/ - + user-manual http://example.com/privoxy/user-manual/ @@ -315,7 +296,7 @@ II. FORMAT OF THE CONFIGURATION FILE -@@#user-manual http://www.privoxy.org/user-manual/]]> +@@#user-manual https://www.privoxy.org/user-manual/]]> @@ -533,16 +514,6 @@ II. FORMAT OF THE CONFIGURATION FILE No trailing /, please. - @@ -597,6 +568,55 @@ II. FORMAT OF THE CONFIGURATION FILE + +temporary-directory + + + + Specifies: + + A directory where Privoxy can create temporary files. + + + + Type of value: + + Path name + + + + Default value: + + unset + + + + Effect if unset: + + No temporary files are created, external filters don't work. + + + + Notes: + + + To execute external filters, + Privoxy has to create temporary files. + This directive specifies the directory the temporary files should + be written to. + + + It should be a directory only Privoxy + (and trusted users) can access. + + + + + +@@#temporary-directory .]]> + + + logdir @@ -703,13 +723,6 @@ actionsfile Actions files contain all the per site and per URL configuration for ad blocking, cookie management, privacy considerations, etc. - There is no point in using Privoxy without at - least one actions file. - - - Note that since Privoxy 3.0.7, the complete filename, including the .action - extension has to be specified. The syntax change was necessary to be consistent - with the other file options and to allow previously forbidden characters. @@ -846,22 +859,22 @@ actionsfile Depending on the debug options below, the logfile may be a privacy risk if third parties can get access to it. As most users will never look - at it, Privoxy 3.0.7 and later only log fatal - errors by default. + at it, Privoxy only logs fatal errors by default. For most troubleshooting purposes, you will have to change that, please refer to the debugging section for details. - - 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). - Any log files must be writable by whatever user Privoxy is being run as (on Unix, default user id is privoxy). + + To prevent the logfile from growing indefinitely, it is recommended to + periodically rotate or shorten it. Many operating systems support log + rotation out of the box, some require additional software to do it. + For details, please refer to the documentation for your operating system. + @@ -1002,9 +1015,8 @@ actionsfile The available debug levels are: - - debug 1 # Log the destination for each request &my-app; let through. See also debug 1024. + debug 1 # Log the destination for each request. See also debug 1024. debug 2 # show each connection status debug 4 # show I/O status debug 8 # show header parsing @@ -1021,7 +1033,6 @@ actionsfile debug 32768 # log all data read from the network debug 65536 # Log the applying actions - To select multiple debug levels, you can either add them or use multiple debug lines. @@ -1032,12 +1043,6 @@ actionsfile so that you will notice when things go wrong. The other levels are probably only of interest if you are hunting down a specific problem. They can produce a hell of an output (especially 16). - - - - &my-app; used to ship with the debug levels recommended above enabled by - default, but due to privacy concerns 3.0.7 and later are configured to - only log fatal errors. If you are used to the more verbose settings, simply enable the debug lines @@ -1083,13 +1088,13 @@ actionsfile Type of value: - None + 1 or 0 Default value: - Unset + 0 @@ -1112,7 +1117,7 @@ actionsfile -@@#single-threaded]]> +@@#single-threaded 1]]> @@ -1255,6 +1260,9 @@ actionsfile If the specified address isn't available on the system, or if the hostname can't be resolved, Privoxy will fail to start. + On GNU/Linux, and other platforms that can listen on not yet assigned IP + addresses, Privoxy will start and will listen on the specified + address whenever the IP address is assigned to the system IPv6 addresses containing colons have to be quoted by brackets. @@ -1302,21 +1310,17 @@ actionsfile (192.168.0.0) and has another outside connection with a different address. You want it to serve requests from inside only: - listen-address 192.168.0.1:8118 - Suppose you are running Privoxy on an IPv6-capable machine and you want it to listen on the IPv6 address of the loopback device: - listen-address [::1]:8118 - @@ -1365,18 +1369,6 @@ actionsfile toggled off mode, i.e. mostly behave like a normal, content-neutral proxy with both ad blocking and content filtering disabled. See enable-remote-toggle below. - - - - The windows version will only display the toggle icon in the system tray - if this option is present. @@ -1638,7 +1630,7 @@ actionsfile - Examples: + Example: enforce-blocks 1 @@ -1685,7 +1677,7 @@ ACLs: permit-access and deny-access If your system implements RFC 3493, then src_addr and dst_addr can be IPv6 addresses delimeted by + class="parameter">dst_addr can be IPv6 addresses delimited by brackets, port can be a number or a service name, and src_masklen and @@ -1775,49 +1767,39 @@ ACLs: permit-access and deny-access is OK. The absence of a dst_addr implies that all destination addresses are OK: - permit-access localhost - Allow any host on the same class C subnet as www.privoxy.org access to nothing but www.example.com (or other domains hosted on the same system): - permit-access www.privoxy.org/24 www.example.com/32 - Allow access from any host on the 26-bit subnet 192.168.45.64 to anywhere, with the exception that 192.168.45.73 may not access the IP address behind www.dirty-stuff.example.com: - permit-access 192.168.45.64/26 deny-access 192.168.45.73 www.dirty-stuff.example.com - Allow access from the IPv4 network 192.0.2.0/24 even if listening on an IPv6 wild card address (not supported on all platforms): - permit-access 192.0.2.0/24 - This is equivalent to the following line even if listening on an IPv4 address (not supported on all platforms): - permit-access [::ffff:192.0.2.0]/120 - @@ -1882,6 +1864,216 @@ ACLs: permit-access and deny-access @@buffer-limit 4096]]> + +enable-proxy-authentication-forwarding + + + Specifies: + + + Whether or not proxy authentication through &my-app; should work. + + + + + Type of value: + + 0 or 1 + + + + Default value: + + 0 + + + + Effect if unset: + + + Proxy authentication headers are removed. + + + + + Notes: + + + Privoxy itself does not support proxy authentication, but can + allow clients to authenticate against Privoxy's parent proxy. + + + By default Privoxy (3.0.21 and later) don't do that and remove + Proxy-Authorization headers in requests and Proxy-Authenticate + headers in responses to make it harder for malicious sites to + trick inexperienced users into providing login information. + + + If this option is enabled the headers are forwarded. + + + Enabling this option is not recommended if there is + no parent proxy that requires authentication or if the local network between + Privoxy and the parent proxy isn't trustworthy. If proxy authentication is + only required for some requests, it is recommended to use a client header filter + to remove the authentication headers for requests where they aren't needed. + + + + + +@@enable-proxy-authentication-forwarding 0]]> + + + +trusted-cgi-referer + + + Specifies: + + + A trusted website or webpage whose links can be followed to reach sensitive CGI pages + + + + + Type of value: + + URL or URL prefix + + + + Default value: + + Unset + + + + Effect if unset: + + + No external pages are considered trusted referers. + + + + + Notes: + + + Before &my-app; accepts configuration changes through CGI pages like + client-tags or the + remote toggle, it checks + the Referer header to see if the request comes from a trusted source. + + + By default only the webinterface domains + config.privoxy.org + and + p.p + are considered trustworthy. + Requests originating from other domains are rejected to prevent + third-parties from modifiying Privoxy's state by e.g. embedding + images that result in CGI requests. + + + In some environments it may be desirable to embed links to CGI pages + on external pages, for example on an Intranet homepage the Privoxy admin + controls. + + + The trusted-cgi-referer option can be used to add that page, + or the whole domain, as trusted source so the resulting requests aren't + rejected. + Requests are accepted if the specified trusted-cgi-refer is the prefix + of the Referer. + + + If the trusted source is supposed to access the CGI pages via + JavaScript the cors-allowed-origin + option can be used. + + + + Declaring pages the admin doesn't control trustworthy may allow + malicious third parties to modify Privoxy's internal state against + the user's wishes and without the user's knowledge. + + + + + + +@@#trusted-cgi-referer http://www.example.org/local-privoxy-control-page]]> + + + + +cors-allowed-origin + + + Specifies: + + + A trusted website which can access &my-app;'s CGI pages through JavaScript. + + + + + Type of value: + + URL + + + + Default value: + + Unset + + + + Effect if unset: + + + No external sites get access via cross-origin resource sharing. + + + + + Notes: + + + Modern browsers by default prevent cross-origin requests made + via JavaScript to &my-app;'s CGI interface even if &my-app; + would trust the referer because it's white listed via the + trusted-cgi-referer + directive. + + + Cross-origin resource sharing (CORS) is a mechanism to allow + cross-origin requests. + + + The cors-allowed-origin option can be used to specify + a domain that is allowed to make requests to Privoxy CGI interface + via JavaScript. It is used in combination with the + trusted-cgi-referer + directive. + + + + Declaring domains the admin doesn't control trustworthy may allow + malicious third parties to modify Privoxy's internal state against + the user's wishes and without the user's knowledge. + + + + + + +@@#cors-allowed-origin http://www.example.org/]]> + + @@ -1986,40 +2178,32 @@ ACLs: permit-access and deny-access Everything goes to an example parent proxy, except SSL on port 443 (which it doesn't handle): - forward / parent-proxy.example.org:8080 forward :443 . - Everything goes to our example ISP's caching proxy, except for requests to that ISP's sites: - forward / caching-proxy.isp.example.net:8000 forward .isp.example.net . - Parent proxy specified by an IPv6 address: - forward / [2001:DB8::1]:8000 - Suppose your parent proxy doesn't support IPv6: - forward / parent-proxy.example.org:8000 forward ipv6-server.example.org . forward <[2-3][0-9a-f][0-9a-f][0-9a-f]:*> . - @@ -2046,7 +2230,7 @@ forward-socks4, forward-socks4a, forward-socks5 and forward-socks5t target_pattern - socks_proxy[:port] + [user:pass@]socks_proxy[:port] http_parent[:port] @@ -2059,7 +2243,8 @@ forward-socks4, forward-socks4a, forward-socks5 and forward-socks5t (http_parent may be . to denote no HTTP forwarding), and the optional port parameters are TCP ports, - i.e. integer values from 1 to 65535 + i.e. integer values from 1 to 65535. user and + pass can be used for SOCKS5 authentication if required. @@ -2124,43 +2309,47 @@ forward-socks4, forward-socks4a, forward-socks5 and forward-socks5t their ISP's proxy by way of example.com's corporate SOCKS 4A gateway to the Internet. - forward-socks4a / socks-gw.example.com:1080 www-cache.isp.example.net:8080 forward .example.com . - A rule that uses a SOCKS 4 gateway for all destinations but no HTTP parent looks like this: - forward-socks4 / socks-gw.example.com:1080 . + + + To connect SOCKS5 proxy which requires username/password authentication: + + forward-socks5 / user:pass@socks-gw.example.com:1080 . + To chain Privoxy and Tor, both running on the same system, you would use something like: - - forward-socks5 / 127.0.0.1:9050 . + forward-socks5t / 127.0.0.1:9050 . + + Note that if you got Tor through one of the bundles, you may + have to change the port from 9050 to 9150 (or even another one). + For details, please check the documentation on the + Tor website. - - + The public Tor network can't be used to reach your local network, if you need to access local servers you therefore might want to make some exceptions: - forward 192.168.*.*/ . - forward 10.*.*.*/ . - forward 127.*.*.*/ . + forward 10.*.*.*/ . + forward 127.*.*.*/ . - Unencrypted connections to systems in these address ranges will be as (un)secure as the local network is, but the alternative is that you @@ -2173,11 +2362,9 @@ forward-socks4, forward-socks4a, forward-socks5 and forward-socks5t using their names, you will need additional exceptions that look like this: - forward localhost/ . - @@ -2205,23 +2392,19 @@ forward-socks4, forward-socks4a, forward-socks5 and forward-socks5t host-a: - forward / . forward .isp-b.example.net host-b:8118 - host-b: - forward / . forward .isp-a.example.org host-a:8118 - Now, your users can set their browser's proxy to use either @@ -2240,7 +2423,6 @@ forward-socks4, forward-socks4a, forward-socks5 and forward-socks5t run on the same box, your squid configuration could then look like this: - # Define Privoxy as parent proxy (without ICP) cache_peer 127.0.0.1 parent 8118 7 no-query @@ -2253,7 +2435,6 @@ forward-socks4, forward-socks4a, forward-socks5 and forward-socks5t # Forward all the rest to Privoxy never_direct allow all - You would then need to change your browser's proxy settings to squid's address and port. @@ -2266,11 +2447,9 @@ forward-socks4, forward-socks4a, forward-socks5 and forward-socks5t say, on antivir.example.com, port 8010: - forward / . forward /.*\.(exe|com|dll|zip)$ antivir.example.com:8010 - ]]> @@ -2329,7 +2508,7 @@ forward-socks4, forward-socks4a, forward-socks5 and forward-socks5t - Examples: + Example: forwarded-connect-retries 1 @@ -2386,6 +2565,9 @@ forward-socks4, forward-socks4a, forward-socks5 and forward-socks5t option and configure your packet filter to redirect outgoing HTTP connections into Privoxy. + + Note that intercepting encrypted connections (HTTPS) isn't supported. + Make sure that Privoxy's own requests aren't redirected as well. Additionally take care that @@ -2394,10 +2576,16 @@ forward-socks4, forward-socks4a, forward-socks5 and forward-socks5t Privoxy's listening port is reachable by the outside or an attacker has access to the pages you visit. + + If you are running Privoxy as intercepting proxy without being + able to intercept all client requests you may want to adjust + the CGI templates to make sure they don't reference content from + config.privoxy.org. + - Examples: + Example: accept-intercepted-requests 1 @@ -2455,7 +2643,7 @@ forward-socks4, forward-socks4a, forward-socks5 and forward-socks5t - Examples: + Example: allow-cgi-request-crunching 1 @@ -2522,7 +2710,7 @@ forward-socks4, forward-socks4a, forward-socks5 and forward-socks5t - Examples: + Example: split-large-forms 1 @@ -2605,7 +2793,7 @@ forward-socks4, forward-socks4a, forward-socks5 and forward-socks5t - Examples: + Example: keep-alive-timeout 300 @@ -2668,12 +2856,13 @@ forward-socks4, forward-socks4a, forward-socks5 and forward-socks5t that improves performance mainly depends on the client configuration. - This options is new and should be considered experimental. + If you are seeing problems with pages not properly loading, + disabling this option could work around the problem. - Examples: + Example: tolerate-pipelining 1 @@ -2681,7 +2870,7 @@ forward-socks4, forward-socks4a, forward-socks5 and forward-socks5t -@@#tolerate-pipelining 1]]> +@@tolerate-pipelining 1]]> @@ -2754,7 +2943,7 @@ forward-socks4, forward-socks4a, forward-socks5 and forward-socks5t - Examples: + Example: default-server-timeout 60 @@ -2762,7 +2951,7 @@ forward-socks4, forward-socks4a, forward-socks5 and forward-socks5t -@@#default-server-timeout 60]]> +@@#default-server-timeout 5]]> @@ -2853,7 +3042,7 @@ forward-socks4, forward-socks4a, forward-socks5 and forward-socks5t - Examples: + Example: connection-sharing 1 @@ -2909,7 +3098,7 @@ forward-socks4, forward-socks4a, forward-socks5 and forward-socks5t - Examples: + Example: socket-timeout 300 @@ -2942,7 +3131,7 @@ forward-socks4, forward-socks4a, forward-socks5 and forward-socks5t Default value: - None + 128 @@ -2987,10 +3176,17 @@ forward-socks4, forward-socks4a, forward-socks5 and forward-socks5t Obviously using this option only makes sense if you choose a limit below the one enforced by the operating system. + + One most POSIX-compliant systems &my-app; can't properly deal with + more than FD_SETSIZE file descriptors at the same time and has to reject + connections if the limit is reached. This will likely change in a + future version, but currently this limit can't be increased without + recompiling &my-app; with a different FD_SETSIZE limit. + - Examples: + Example: max-client-connections 256 @@ -3002,6 +3198,156 @@ forward-socks4, forward-socks4a, forward-socks5 and forward-socks5t +listen-backlog + + + Specifies: + + + Connection queue length requested from the operating system. + + + + + Type of value: + + + Number. + + + + + Default value: + + 128 + + + + Effect if unset: + + + A connection queue length of 128 is requested from the operating system. + + + + + Notes: + + + Under high load incoming connection may queue up before Privoxy + gets around to serve them. The queue length is limited by the + operating system. Once the queue is full, additional connections + are dropped before Privoxy can accept and serve them. + + + Increasing the queue length allows Privoxy to accept more + incoming connections that arrive roughly at the same time. + + + Note that Privoxy can only request a certain queue length, + whether or not the requested length is actually used depends + on the operating system which may use a different length instead. + + + On many operating systems a limit of -1 can be specified to + instruct the operating system to use the maximum queue length + allowed. Check the listen man page to see if your platform allows this. + + + On some platforms you can use "netstat -Lan -p tcp" to see the effective + queue length. + + + Effectively using a value above 128 usually requires changing + the system configuration as well. On FreeBSD-based system the + limit is controlled by the kern.ipc.soacceptqueue sysctl. + + + + + Example: + + + listen-backlog 4096 + + + + +@@#listen-backlog -1]]> + + + +enable-accept-filter + + + Specifies: + + + Whether or not Privoxy should use an accept filter + + + + + Type of value: + + + 0 or 1 + + + + + Default value: + + 0 + + + + Effect if unset: + + + No accept filter is enabled. + + + + + Notes: + + + Accept filters reduce the number of context switches by not + passing sockets for new connections to Privoxy until a complete + HTTP request is available. + + + As a result, Privoxy can process the whole request right away + without having to wait for additional data first. + + + For this option to work, Privoxy has to be compiled with + FEATURE_ACCEPT_FILTER and the operating system has to support + it (which may require loading a kernel module). + + + Currently accept filters are only supported on FreeBSD-based + systems. Check the + accf_http(9) + man page + to learn how to enable the support in the operating system. + + + + + Example: + + + enable-accept-filter 1 + + + + +@@#enable-accept-filter 1]]> + + + handle-as-empty-doc-returns-ok @@ -3049,15 +3395,13 @@ forward-socks4, forward-socks4a, forward-socks5 and forward-socks5t Notes: - This is a work-around for Firefox bug 492459: - - Websites are no longer rendered if SSL requests for JavaScripts are blocked by a proxy. - - (https://bugzilla.mozilla.org/show_bug.cgi?id=492459) - As the bug has been fixed for quite some time this option should no longer - be needed and will be removed in a future release. Please speak up if you - have a reason why the option should be kept around. + This directive was added as a work-around for Firefox bug 492459: + Websites are no longer rendered if SSL requests for JavaScripts are blocked by a proxy. + ( + https://bugzilla.mozilla.org/show_bug.cgi?id=492459), + the bug has been fixed for quite some time, but this directive is also useful + to make it harder for websites to detect whether or not resources are being + blocked. @@ -3173,20 +3517,20 @@ forward-socks4, forward-socks4a, forward-socks5 and forward-socks5t Examples: - # Best speed (compared to the other levels) compression-level 1 + # Best compression compression-level 9 + # No compression. Only useful for testing as the added header # slightly increases the amount of data that has to be sent. # If your benchmark shows that using this compression level # is superior to using no compression at all, the benchmark # is likely to be flawed. compression-level 0 - - + @@ -3244,53 +3588,872 @@ forward-socks4, forward-socks4a, forward-socks5 and forward-socks5t @@#client-header-order Host \ -# User-Agent \ -# Accept \ -# Accept-Language \ -# Accept-Encoding \ -# Proxy-Connection,\ -# Referer,Cookie \ -# If-Modified-Since \ -# Cache-Control \ -# Content-Length \ -# Content-Type + User-Agent \ + Accept \ + Accept-Language \ + Accept-Encoding \ + Proxy-Connection \ + Referer \ + Cookie \ + DNT \ + If-Modified-Since \ + Cache-Control \ + Content-Length \ + Content-Type ]]> - +client-specific-tag + + + Specifies: + + + The name of a tag that will always be set for clients that + requested it through the webinterface. + + + + + Type of value: + + + Tag name followed by a description that will be shown in the webinterface + + + + + Default value: + + None + + + + Notes: + + + + This is an experimental feature. The syntax is likely to change + in future versions. + + + + Client-specific tags allow Privoxy admins to create different + profiles and let the users chose which one they want without + impacting other users. + + + One use case is allowing users to circumvent certain blocks + without having to allow them to circumvent all blocks. + This is not possible with the + enable-remote-toggle feature + because it would bluntly disable all blocks for all users and also affect + other actions like filters. + It also is set globally which renders it useless in most multi-user setups. + + + After a client-specific tag has been defined with the client-specific-tag + directive, action sections can be activated based on the tag by using a + CLIENT-TAG pattern. + The CLIENT-TAG pattern is evaluated at the same priority + as URL patterns, as a result the last matching pattern wins. + Tags that are created based on client or server headers are evaluated + later on and can overrule CLIENT-TAG and URL patterns! + + + The tag is set for all requests that come from clients that requested + it to be set. + Note that "clients" are differentiated by IP address, + if the IP address changes the tag has to be requested again. + + + Clients can request tags to be set by using the CGI interface http://config.privoxy.org/client-tags. + The specific tag description is only used on the web page and should + be phrased in away that the user understand the effect of the tag. + + + + + Examples: + + + # Define a couple of tags, the described effect requires action sections + # that are enabled based on CLIENT-TAG patterns. + client-specific-tag circumvent-blocks Overrule blocks but do not affect other actions + client-specific-tag disable-content-filters Disable content-filters but do not affect other actions + + + + + +client-tag-lifetime + + + Specifies: + + + How long a temporarily enabled tag remains enabled. + + + + + Type of value: + + + Time in seconds. + + + + + Default value: + + 60 + + + + Notes: + + + + This is an experimental feature. The syntax is likely to change + in future versions. + + + + In case of some tags users may not want to enable them permanently, + but only for a short amount of time, for example to circumvent a block + that is the result of an overly-broad URL pattern. + + + The CGI interface http://config.privoxy.org/client-tags + therefore provides a "enable this tag temporarily" option. + If it is used, the tag will be set until the client-tag-lifetime + is over. + + + + + Example: + + + # Increase the time to life for temporarily enabled tags to 3 minutes + client-tag-lifetime 180 + + + + + - - - -Windows GUI Options - - Privoxy has a number of options specific to the - Windows GUI interface: - - - -@@]]> - - If activity-animation is set to 1, the - Privoxy icon will animate when - Privoxy is active. To turn off, set to 0. - + -@@#activity-animation 1]]> - - - +trust-x-forwarded-for + + + Specifies: + + + Whether or not Privoxy should use IP addresses specified with the X-Forwarded-For header + + + + + Type of value: + + + 0 or one + + + + + Default value: + + 0 + + + + Notes: + + + + This is an experimental feature. The syntax is likely to change + in future versions. + + + + If clients reach Privoxy through another proxy, for example a load + balancer, Privoxy can't tell the client's IP address from the connection. + If multiple clients use the same proxy, they will share the same + client tag settings which is usually not desired. + + + This option lets Privoxy use the X-Forwarded-For header value as + client IP address. If the proxy sets the header, multiple clients + using the same proxy do not share the same client tag settings. + + + This option should only be enabled if Privoxy can only be reached + through a proxy and if the proxy can be trusted to set the header + correctly. It is recommended that ACL are used to make sure only + trusted systems can reach Privoxy. + + + If access to Privoxy isn't limited to trusted systems, this option + would allow malicious clients to change the client tags for other + clients or increase Privoxy's memory requirements by registering + lots of client tag settings for clients that don't exist. + + + + + Example: + + + # Allow systems that can reach Privoxy to provide the client + # IP address with a X-Forwarded-For header. + trust-x-forwarded-for 1 + + + + + + + + + + +receive-buffer-size + + + Specifies: + + + The size of the buffer Privoxy uses to receive data from the server. + + + + + Type of value: + + + Size in bytes + + + + + Default value: + + 5000 + + + + Notes: + + + Increasing the receive-buffer-size increases Privoxy's memory usage but + can lower the number of context switches and thereby reduce the + cpu usage and potentially increase the throughput. + + + This is mostly relevant for fast network connections and + large downloads that don't require filtering. + + + Reducing the buffer size reduces the amount of memory Privoxy + needs to handle the request but increases the number of systemcalls + and may reduce the throughput. + + + A dtrace command like: + sudo dtrace -n 'syscall::read:return /execname == "privoxy"/ { @[execname] = llquantize(arg0, 10, 0, 5, 20); @m = max(arg0)}' + can be used to properly tune the receive-buffer-size. + On systems without dtrace, strace or truss may be used as + less convenient alternatives. + + + If the buffer is too large it will increase Privoxy's memory + footprint without any benefit. As the memory is (currently) + cleared before using it, a buffer that is too large can + actually reduce the throughput. + + + + + Example: + + + # Increase the receive buffer size + receive-buffer-size 32768 + + + + + + + + + + + + +HTTPS Inspection (Experimental) + + + HTTPS inspection allows to filter encrypted requests. + This is only supported when Privoxy + has been built with FEATURE_HTTPS_INSPECTION. + + + + +ca-directory + + + Specifies: + + + Directory with the CA key, the CA certificate and the trusted CAs file. + + + + + Type of value: + + + Text + + + + + Default value: + + Empty string + + + + Effect if unset: + + + Default value is used. + + + + + Notes: + + + This directive specifies the directory where the + CA key, the CA certificate and the trusted CAs file + are located. + + + The permissions should only let &my-app; and the &my-app; + admin access the directory. + + + + + Example: + + + ca-directory /usr/local/etc/privoxy/CA + + + + +@@#ca-directory /usr/local/etc/privoxy/CA]]> + + + + + + +ca-cert-file + + + Specifies: + + + The CA certificate file in ".crt" format. + + + + + Type of value: + + + Text + + + + + Default value: + + cacert.crt + + + + Effect if unset: + + + Default value is used. + + + + + Notes: + + + This directive specifies the name of the CA certificate file + in ".crt" format. + + + The file is used by &my-app; to generate website certificates + when https inspection is enabled with the + https-inspection + action. + + + &my-app; clients should import the certificate so that they + can validate the generated certificates. + + + The file can be generated with: + openssl req -new -x509 -extensions v3_ca -keyout cakey.pem -out cacert.crt -days 3650 + + + + + Example: + + + ca-cert-file root.crt + + + + +@@#ca-cert-file cacert.crt]]> + + + + + + +ca-key-file + + + Specifies: + + + The CA key file in ".pem" format. + + + + + Type of value: + + + Text + + + + + Default value: + + cacert.pem + + + + Effect if unset: + + + Default value is used. + + + + + Notes: + + + This directive specifies the name of the CA key file + in ".pem" format. See the ca-cert-file + for a command to generate it. + + + + + Example: + + + ca-key-file cakey.pem + + + + +@@#ca-key-file cakey.pem]]> + + + + + + +ca-password + + + Specifies: + + + The password for the CA keyfile. + + + + + Type of value: + + + Text + + + + + Default value: + + Empty string + + + + Effect if unset: + + + Default value is used. + + + + + Notes: + + + This directive specifies the password for the CA keyfile + that is used when Privoxy generates certificates for intercepted + requests. + + + Note that the password is shown on the CGI page so don't + reuse an important one. + + + + + Example: + + + ca-password blafasel + + + + +@@#ca-password swordfish]]> + + + + + + +certificate-directory + + + Specifies: + + + Directory to save generated keys and certificates. + + + + + Type of value: + + + Text + + + + + Default value: + + ./certs + + + + Effect if unset: + + + Default value is used. + + + + + Notes: + + + This directive specifies the directory where generated + TLS/SSL keys and certificates are saved when https inspection + is enabled with the + https-inspection + action. + + + The keys and certificates currently have to be deleted manually + when changing the ca-cert-file + and the ca-cert-key. + + + The permissions should only let &my-app; and the &my-app; + admin access the directory. + + + + &my-app; currently does not garbage-collect obsolete keys + and certificates and does not keep track of how may keys + and certificates exist. + + + &my-app; admins should monitor the size of the directory + and/or make sure there is sufficient space available. + A cron job to limit the number of keys and certificates + to a certain number may be worth considering. + + + + + + Example: + + + certificate-directory /usr/local/var/privoxy/certs + + + + +@@#certificate-directory /usr/local/var/privoxy/certs]]> + + + + + + +cipher-list + + + Specifies: + + + A list of ciphers to use in TLS handshakes + + + + + Type of value: + + + Text + + + + + Default value: + + None + + + + Effect if unset: + + + A default value is inherited from the TLS library. + + + + + Notes: + + + This directive allows to specify a non-default list of ciphers to use + in TLS handshakes with clients and servers. + + + Ciphers are separated by colons. Which ciphers are supported + depends on the TLS library. When using OpenSSL, unsupported ciphers + are skipped. When using MbedTLS they are rejected. + + + + Specifying an unusual cipher list makes fingerprinting easier. + Note that the default list provided by the TLS library may + be unusual when compared to the one used by modern browsers + as well. + + + + + + Examples: + + + # Explicitly set a couple of ciphers with names used by MbedTLS + cipher-list cipher-list TLS-ECDHE-RSA-WITH-CHACHA20-POLY1305-SHA256:\ +TLS-ECDHE-ECDSA-WITH-CHACHA20-POLY1305-SHA256:\ +TLS-DHE-RSA-WITH-CHACHA20-POLY1305-SHA256:\ +TLS-ECDHE-ECDSA-WITH-AES-128-GCM-SHA256:\ +TLS-ECDHE-ECDSA-WITH-AES-256-GCM-SHA384:\ +TLS-ECDHE-ECDSA-WITH-AES-256-CCM:\ +TLS-ECDHE-ECDSA-WITH-AES-256-CCM-8:\ +TLS-ECDHE-ECDSA-WITH-AES-128-CCM:\ +TLS-ECDHE-ECDSA-WITH-AES-128-CCM-8:\ +TLS-ECDHE-ECDSA-WITH-CAMELLIA-128-GCM-SHA256:\ +TLS-ECDHE-ECDSA-WITH-CAMELLIA-256-GCM-SHA384:\ +TLS-ECDHE-RSA-WITH-AES-128-GCM-SHA256:\ +TLS-ECDHE-RSA-WITH-AES-256-GCM-SHA384:\ +TLS-ECDHE-RSA-WITH-CAMELLIA-128-GCM-SHA256:\ +TLS-ECDHE-RSA-WITH-CAMELLIA-256-GCM-SHA384:\ +TLS-DHE-RSA-WITH-AES-256-GCM-SHA384:\ +TLS-DHE-RSA-WITH-AES-128-GCM-SHA256:\ +TLS-DHE-RSA-WITH-AES-256-CCM:\ +TLS-DHE-RSA-WITH-AES-256-CCM-8:\ +TLS-DHE-RSA-WITH-AES-128-CCM:\ +TLS-DHE-RSA-WITH-AES-128-CCM-8:\ +TLS-DHE-RSA-WITH-CAMELLIA-128-GCM-SHA256:\ +TLS-DHE-RSA-WITH-CAMELLIA-256-GCM-SHA384:\ +TLS-ECDH-RSA-WITH-AES-128-GCM-SHA256:\ +TLS-ECDH-RSA-WITH-AES-256-GCM-SHA384:\ +TLS-ECDH-RSA-WITH-CAMELLIA-128-GCM-SHA256:\ +TLS-ECDH-RSA-WITH-CAMELLIA-256-GCM-SHA384:\ +TLS-ECDH-ECDSA-WITH-AES-128-GCM-SHA256:\ +TLS-ECDH-ECDSA-WITH-AES-256-GCM-SHA384:\ +TLS-ECDH-ECDSA-WITH-CAMELLIA-128-GCM-SHA256:\ +TLS-ECDH-ECDSA-WITH-CAMELLIA-256-GCM-SHA384 + + + # Explicitly set a couple of ciphers with names used by OpenSSL +cipher-list ECDHE-RSA-AES256-GCM-SHA384:\ +ECDHE-ECDSA-AES256-GCM-SHA384:\ +DH-DSS-AES256-GCM-SHA384:\ +DHE-DSS-AES256-GCM-SHA384:\ +DH-RSA-AES256-GCM-SHA384:\ +DHE-RSA-AES256-GCM-SHA384:\ +ECDH-RSA-AES256-GCM-SHA384:\ +ECDH-ECDSA-AES256-GCM-SHA384:\ +ECDHE-RSA-AES128-GCM-SHA256:\ +ECDHE-ECDSA-AES128-GCM-SHA256:\ +DH-DSS-AES128-GCM-SHA256:\ +DHE-DSS-AES128-GCM-SHA256:\ +DH-RSA-AES128-GCM-SHA256:\ +DHE-RSA-AES128-GCM-SHA256:\ +ECDH-RSA-AES128-GCM-SHA256:\ +ECDH-ECDSA-AES128-GCM-SHA256:\ +ECDHE-RSA-AES256-GCM-SHA384:\ +AES128-SHA + + + # Use keywords instead of explicitly naming the ciphers (Does not work with MbedTLS) + cipher-list ALL:!EXPORT:!EXPORT40:!EXPORT56:!aNULL:!LOW:!RC4:@STRENGTH + + + + + + + + + + +trusted-cas-file + + + Specifies: + + + The trusted CAs file in ".pem" format. + + + + + Type of value: + + + File name relative to ca-directory + + + + + Default value: + + trustedCAs.pem + + + + Effect if unset: + + + Default value is used. + + + + + Notes: + + + This directive specifies the trusted CAs file that is used when validating + certificates for intercepted TLS/SSL requests. + + + An example file can be downloaded from + https://curl.haxx.se/ca/cacert.pem. + + + + + Example: + + + trusted-cas-file trusted_cas_file.pem + + + + +@@#trusted-cas-file trustedCAs.pem]]> + + + + + + + + + +Windows GUI Options + + Privoxy has a number of options specific to the + Windows GUI interface: + + + +@@]]> + + If activity-animation is set to 1, the + Privoxy icon will animate when + Privoxy is active. To turn off, set to 0. + + +@@#activity-animation 1]]> + activity-animation 1 - - - - + ]]> @@ -3304,15 +4467,9 @@ forward-socks4, forward-socks4a, forward-socks5 and forward-socks5t @@#log-messages 1]]> - - log-messages 1 - - - - + ]]> @@ -3330,15 +4487,9 @@ forward-socks4, forward-socks4a, forward-socks5 and forward-socks5t @@#log-buffer-size 1]]> - - log-buffer-size 1 - - - - + ]]> @@ -3350,15 +4501,9 @@ forward-socks4, forward-socks4a, forward-socks5 and forward-socks5t @@#log-max-lines 200]]> - - log-max-lines 200 - - - - + ]]> @@ -3371,15 +4516,9 @@ forward-socks4, forward-socks4a, forward-socks5 and forward-socks5t @@#log-highlight-messages 1]]> - - log-highlight-messages 1 - - - - + ]]> @@ -3390,15 +4529,9 @@ forward-socks4, forward-socks4a, forward-socks5 and forward-socks5t @@#log-font-name Comic Sans MS]]> - - log-font-name Comic Sans MS - - - - + ]]> @@ -3409,15 +4542,9 @@ forward-socks4, forward-socks4a, forward-socks5 and forward-socks5t @@#log-font-size 8]]> - - log-font-size 8 - - - - + ]]> @@ -3430,15 +4557,9 @@ forward-socks4, forward-socks4a, forward-socks5 and forward-socks5t @@#show-on-task-bar 0]]> - - show-on-task-bar 0 - - - - + ]]> @@ -3451,15 +4572,9 @@ forward-socks4, forward-socks4a, forward-socks5 and forward-socks5t @@#close-button-minimizes 1]]> - - close-button-minimizes 1 - - - - + ]]> @@ -3473,15 +4588,9 @@ forward-socks4, forward-socks4a, forward-socks5 and forward-socks5t @@#hide-console]]> - - #hide-console - - - - + ]]>