2 File : $Source: /cvsroot/ijbswa/current/doc/source/p-config.sgml,v $
4 Purpose : Used with other docs and files only.
6 $Id: p-config.sgml,v 2.30 2008/03/27 18:31:20 fabiankeil Exp $
8 Copyright (C) 2001-2008 Privoxy Developers http://www.privoxy.org/
11 ========================================================================
12 NOTE: Please read developer-manual/documentation.html before touching
13 anything in this, or other Privoxy documentation.
14 ========================================================================
17 This file contains all the config file comments and options. It used to
18 build both the user-manual config sections, and all of config (yes, the main
21 Rationale: This is broken up into two files since a file with a prolog
22 (DTD, etc) cannot be sourced as a secondary file. config.sgml is basically
23 a wrapper for this file.
27 OPTIONS: The actual options are included in this file and prefixed with
28 '@@', and processed by the Makefile to strip the '@@'. Default options
29 that should appear commented out should be listed as: '@@#OPTION'.
30 Otherwise, as '@@OPTION'. Example:
32 @@listen-address 127.0.0.1:8118
34 The Makefile does significant other processing too. The final results
35 should be checked to make sure that the perl processing does not
36 fubar something!!! Makefile processing requires w3m, fmt (shell line
40 This file is included into:
43 config (the actual Privoxy config file)
48 <!-- This part only goes into user-manual -->
50 <title>The Main Configuration File</title>
53 Again, the main configuration file is named <filename>config</filename> on
54 Linux/Unix/BSD and OS/2, and <filename>config.txt</filename> on Windows.
55 Configuration lines consist of an initial keyword followed by a list of
56 values, all separated by whitespace (any number of spaces or tabs). For
64 <emphasis>confdir /etc/privoxy</emphasis></literallayout>
70 Assigns the value <literal>/etc/privoxy</literal> to the option
71 <literal>confdir</literal> and thus indicates that the configuration
72 directory is named <quote>/etc/privoxy/</quote>.
76 All options in the config file except for <literal>confdir</literal> and
77 <literal>logdir</literal> are optional. Watch out in the below description
78 for what happens if you leave them unset.
82 The main config file controls all aspects of <application>Privoxy</application>'s
83 operation that are not location dependent (i.e. they apply universally, no matter
84 where you may be surfing).
91 <!-- This part only goes into the config file -->
94 @@TITLE<!-- between the @@ is stripped by Makefile -->@@
95 Sample Configuration File for Privoxy v&p-version;
98 $Id: p-config.sgml,v 2.30 2008/03/27 18:31:20 fabiankeil Exp $
101 Copyright (C) 2001-2008 Privoxy Developers http://www.privoxy.org/
106 #################################################################
111 II. FORMAT OF THE CONFIGURATION FILE #
113 1. LOCAL SET-UP DOCUMENTATION #
114 2. CONFIGURATION AND LOG FILE LOCATIONS #
116 4. ACCESS CONTROL AND SECURITY #
118 6. WINDOWS GUI OPTIONS #
120 #################################################################
124 <literallayout>I. INTRODUCTION
125 =============== <!-- fuck this madness --></literallayout>
128 This file holds Privoxy's main configuration. Privoxy detects
129 configuration changes automatically, so you don't have to restart it
130 unless you want to load a different configuration file.
133 The configuration will be reloaded with the first request after the
134 change was done, this request itself will still use the old configuration,
135 though. In other words: it takes two requests before you see the result of
136 your changes. Requests that are dropped due to ACL don't trigger reloads.
139 When starting Privoxy on Unix systems, give the location of this
140 file as last argument. On Windows systems, Privoxy will look for
141 this file with the name 'config.txt' in the current working directory
142 of the Privoxy process.
146 <literallayout><!-- funky spacing -->
148 II. FORMAT OF THE CONFIGURATION FILE
149 ====================================</literallayout>
152 Configuration lines consist of an initial keyword followed by a list
153 of values, all separated by whitespace (any number of spaces or
157 actionsfile default.action
160 Indicates that the actionsfile is named 'default.action'.
163 The '#' indicates a comment. Any part of a line following a '#' is
164 ignored, except if the '#' is preceded by a '\'.
167 Thus, by placing a # at the start of an existing configuration line,
168 you can make it a comment and it will be treated as if it weren't there.
169 This is called "commenting out" an option and can be useful. Removing
170 the # again is called "uncommenting".
173 Note that commenting out an option and leaving it at its default
174 are two completely different things! Most options behave very
175 differently when unset. See the "Effect if unset" explanation
176 in each option's description for details.
179 Long lines can be continued on the next line by using a `\' as
185 <!-- ************************************************ -->
186 <!-- The following is common to both outputs (mostly) -->
187 <!-- ************************************************ -->
191 <!-- ~~~~~ New section ~~~~~ -->
192 <sect2 id="local-set-up">
193 <title>Local Set-up Documentation</title>
196 If you intend to operate <application>Privoxy</application> for more users
197 than just yourself, it might be a good idea to let them know how to reach
198 you, what you block and why you do that, your policies, etc.
202 <!-- ~~~~~ New section ~~~~~ -->
203 <sect3 renderas="sect4" id="user-manual"><title>user-manual</title>
206 <term>Specifies:</term>
209 Location of the <application>Privoxy</application> User Manual.
214 <term>Type of value:</term>
216 <para>A fully qualified URI</para>
220 <term>Default value:</term>
222 <para><emphasis>Unset</emphasis></para>
226 <term>Effect if unset:</term>
229 <ulink url="http://www.privoxy.org/user-manual/">http://www.privoxy.org/<replaceable class="parameter">version</replaceable>/user-manual/</ulink>
230 will be used, where <replaceable class="parameter">version</replaceable> is the <application>Privoxy</application> version.
238 The User Manual URI is the single best source of information on
239 <application>Privoxy</application>, and is used for help links from some
240 of the internal CGI pages. The manual itself is normally packaged with the
241 binary distributions, so you probably want to set this to a locally
249 Unix, in local filesystem (may not work with all browsers):
252 <screen> user-manual file:///usr/share/doc/privoxy-&p-version;/user-manual/</screen>
255 Windows, in local filesystem, <emphasis>must</emphasis> use forward slash notation:
258 <screen> user-manual file:/c:/some-dir/privoxy-&p-version;/user-manual/</screen>
261 Windows, UNC notation (with forward slashes):
264 <screen> user-manual file://///some-server/some-path/privoxy-&p-version;/user-manual/</screen>
268 The best all purpose solution is simply to put the full local
269 <literal>PATH</literal> to where the <citetitle>User Manual</citetitle> is
273 <screen> user-manual /usr/share/doc/privoxy/user-manual</screen>
276 The User Manual is then available to anyone with access to
277 <application>Privoxy</application>, by following the built-in URL:
278 <literal>http://config.privoxy.org/user-manual/</literal>
279 (or the shortcut: <literal>http://p.p/user-manual/</literal>).
282 If the documentation is not on the local system, it can be accessed
283 from a remote server, as:
286 <screen> user-manual http://example.com/privoxy/user-manual/</screen>
289 <!-- this gets hammered in conversion to config. Text repeated below. -->
292 If set, this option should be <emphasis>the first option in the config
293 file</emphasis>, because it is used while the config file is being read
306 If set, this option should be the first option in the config
307 file, because it is used while the config file is being read.
316 <![%config-file;[<literallayout>@@#user-manual http://www.privoxy.org/user-manual/</literallayout>]]>
320 <!-- ~~~~~ New section ~~~~~ -->
321 <sect3 renderas="sect4" id="trust-info-url"><title>trust-info-url</title>
325 <term>Specifies:</term>
328 A URL to be displayed in the error page that users will see if access to an untrusted page is denied.
333 <term>Type of value:</term>
339 <term>Default value:</term>
341 <para>Two example URLs are provided</para>
345 <term>Effect if unset:</term>
348 No links are displayed on the "untrusted" error page.
356 The value of this option only matters if the experimental trust mechanism has been
357 activated. (See <link linkend="trustfile"><emphasis>trustfile</emphasis></link> below.)
360 If you use the trust mechanism, it is a good idea to write up some on-line
361 documentation about your trust policy and to specify the URL(s) here.
362 Use multiple times for multiple URLs.
365 The URL(s) should be added to the trustfile as well, so users don't end up
366 locked out from the information on why they were locked out in the first place!
372 <![%config-file;[<literallayout>@@trust-info-url http://www.example.com/why_we_block.html</literallayout>]]>
373 <![%config-file;[<literallayout>@@trust-info-url http://www.example.com/what_we_allow.html</literallayout>]]>
377 <!-- ~~~~~ New section ~~~~~ -->
378 <sect3 renderas="sect4" id="admin-address"><title>admin-address</title>
382 <term>Specifies:</term>
385 An email address to reach the <application>Privoxy</application> administrator.
390 <term>Type of value:</term>
392 <para>Email address</para>
396 <term>Default value:</term>
398 <para><emphasis>Unset</emphasis></para>
402 <term>Effect if unset:</term>
405 No email address is displayed on error pages and the CGI user interface.
413 If both <literal>admin-address</literal> and <literal>proxy-info-url</literal>
414 are unset, the whole "Local Privoxy Support" box on all generated pages will
421 <![%config-file;[<literallayout>@@#admin-address privoxy-admin@example.com</literallayout>]]>
425 <!-- ~~~~~ New section ~~~~~ -->
426 <sect3 renderas="sect4" id="proxy-info-url"><title>proxy-info-url</title>
430 <term>Specifies:</term>
433 A URL to documentation about the local <application>Privoxy</application> setup,
434 configuration or policies.
439 <term>Type of value:</term>
445 <term>Default value:</term>
447 <para><emphasis>Unset</emphasis></para>
451 <term>Effect if unset:</term>
454 No link to local documentation is displayed on error pages and the CGI user interface.
462 If both <literal>admin-address</literal> and <literal>proxy-info-url</literal>
463 are unset, the whole "Local Privoxy Support" box on all generated pages will
467 This URL shouldn't be blocked ;-)
473 <![%config-file;[<literallayout>@@#proxy-info-url http://www.example.com/proxy-service.html</literallayout>]]>
477 <!-- ~ End section ~ -->
481 <!-- ~~~~~ New section ~~~~~ -->
483 <sect2 id="conf-log-loc">
484 <title>Configuration and Log File Locations</title>
487 <application>Privoxy</application> can (and normally does) use a number of
488 other files for additional configuration, help and logging.
489 This section of the configuration file tells <application>Privoxy</application>
490 where to find those other files.
494 The user running <application>Privoxy</application>, must have read
495 permission for all configuration files, and write permission to any files
496 that would be modified, such as log files and actions files.
500 <!-- ~~~~~ New section ~~~~~ -->
501 <sect3 renderas="sect4" id="confdir"><title>confdir</title>
505 <term>Specifies:</term>
507 <para>The directory where the other configuration files are located.</para>
511 <term>Type of value:</term>
513 <para>Path name</para>
517 <term>Default value:</term>
519 <para>/etc/privoxy (Unix) <emphasis>or</emphasis> <application>Privoxy</application> installation dir (Windows) </para>
523 <term>Effect if unset:</term>
525 <para><emphasis>Mandatory</emphasis></para>
532 No trailing <quote><literal>/</literal></quote>, please.
535 This is really outdated and not likely to happen. HB 09/20/06
537 When development goes modular and multi-user, the blocker, filter, and
538 per-user config will be stored in subdirectories of <quote>confdir</quote>.
539 For now, the configuration directory structure is flat, except for
540 <filename>confdir/templates</filename>, where the HTML templates for CGI
541 output reside (e.g. <application>Privoxy's</application> 404 error page).
548 <![%config-file;[<literallayout>@@confdir .</literallayout>]]>
551 <!-- ~~~~~ New section ~~~~~ -->
552 <sect3 renderas="sect4" id="templdir"><title>templdir</title>
556 <term>Specifies:</term>
558 <para>An alternative directory where the templates are loaded from.</para>
562 <term>Type of value:</term>
564 <para>Path name</para>
568 <term>Default value:</term>
574 <term>Effect if unset:</term>
576 <para>The templates are assumed to be located in confdir/template.</para>
583 <application>Privoxy's</application> original templates are usually
584 overwritten with each update. Use this option to relocate customized
585 templates that should be kept. As template variables might change
586 between updates, you shouldn't expect templates to work with
587 <application>Privoxy</application> releases other than the one
588 they were part of, though.
594 <![%config-file;[<literallayout>@@#templdir .</literallayout>]]>
598 <!-- ~~~~~ New section ~~~~~ -->
599 <sect3 renderas="sect4" id="logdir"><title>logdir</title>
603 <term>Specifies:</term>
606 The directory where all logging takes place
607 (i.e. where <filename>logfile</filename> and
608 <filename>jarfile</filename> are located).
613 <term>Type of value:</term>
615 <para>Path name</para>
619 <term>Default value:</term>
621 <para>/var/log/privoxy (Unix) <emphasis>or</emphasis> <application>Privoxy</application> installation dir (Windows) </para>
625 <term>Effect if unset:</term>
627 <para><emphasis>Mandatory</emphasis></para>
634 No trailing <quote><literal>/</literal></quote>, please.
640 <![%config-file;[<literallayout>@@logdir .</literallayout>]]>
644 <!-- ~~~~~ New section ~~~~~ -->
645 <sect3 renderas="sect4" id="actionsfile"><title>
648 <anchor id="default.action">
649 <anchor id="standard.action">
650 <anchor id="user.action">
651 <!-- Note: slightly modified this section 04/28/02, hal. See NOTE. -->
654 <term>Specifies:</term>
657 The <link linkend="actions-file">actions file(s)</link> to use
662 <term>Type of value:</term>
664 <para>Complete file name, relative to <literal>confdir</literal></para>
668 <term>Default values:</term>
672 <msgtext><literallayout> standard.action # Internal purposes, no editing recommended</literallayout></msgtext>
675 <msgtext><literallayout> default.action # Main actions file</literallayout></msgtext>
678 <msgtext><literallayout> user.action # User customizations</literallayout></msgtext>
684 <term>Effect if unset:</term>
687 No actions are taken at all. More or less neutral proxying.
695 Multiple <literal>actionsfile</literal> lines are permitted, and are in fact recommended!
698 The default values include <filename>standard.action</filename>, which is used
699 for internal purposes and should be loaded, <filename>default.action</filename>,
700 which is the <quote>main</quote> actions file maintained by the developers, and
701 <filename>user.action</filename>, where you can make your personal additions.
704 Actions files contain all the per site and per URL configuration for
705 ad blocking, cookie management, privacy considerations, etc.
706 There is no point in using <application>Privoxy</application> without at
707 least one actions file.
710 Note that since Privoxy 3.0.7, the complete filename, including the <quote>.action</quote>
711 extension has to be specified. The syntax change was necessary to be consistent
712 with the other file options and to allow previously forbidden characters.
718 <!-- NOTE: alternate markup to make a simpler list doesn't work due to -->
719 <!-- html -> text conversion, blah -->
720 <![%config-file;[<literallayout>@@actionsfile standard.action # Internal purpose, recommended</literallayout>]]>
721 <![%config-file;[<literallayout>@@actionsfile default.action # Main actions file</literallayout>]]>
723 XXX: Like user.filter, user.action should probably be commented out
724 by default as not all packages install it into the default directory.
727 <![%config-file;[<literallayout>@@actionsfile user.action # User customizations</literallayout>]]>
730 <!-- ~~~~~ New section ~~~~~ -->
731 <sect3 renderas="sect4" id="filterfile"><title>filterfile</title>
732 <anchor id="default.filter">
735 <term>Specifies:</term>
738 The <link linkend="filter-file">filter file(s)</link> to use
743 <term>Type of value:</term>
745 <para>File name, relative to <literal>confdir</literal></para>
749 <term>Default value:</term>
751 <para>default.filter (Unix) <emphasis>or</emphasis> default.filter.txt (Windows)</para>
755 <term>Effect if unset:</term>
758 No textual content filtering takes place, i.e. all
759 <literal>+<link linkend="filter">filter</link>{<replaceable class="parameter">name</replaceable>}</literal>
760 actions in the actions files are turned neutral.
768 Multiple <literal>filterfile</literal> lines are permitted.
771 The <link linkend="filter-file">filter files</link> contain content modification
772 rules that use <link linkend="regex">regular expressions</link>. These rules permit
773 powerful changes on the content of Web pages, and optionally the headers
774 as well, e.g., you could try to disable your favorite JavaScript annoyances,
775 re-write the actual displayed text, or just have some fun
776 playing buzzword bingo with web pages.
780 <literal>+<link linkend="filter">filter</link>{<replaceable class="parameter">name</replaceable>}</literal>
781 actions rely on the relevant filter (<replaceable class="parameter">name</replaceable>)
782 to be defined in a filter file!
785 A pre-defined filter file called <filename>default.filter</filename> that contains
786 a number of useful filters for common problems is included in the distribution.
787 See the section on the <literal><link linkend="filter">filter</link></literal>
791 It is recommended to place any locally adapted filters into a separate
792 file, such as <filename>user.filter</filename>.
798 <![%config-file;[<literallayout>@@filterfile default.filter</literallayout>]]>
799 <![%config-file;[<literallayout>@@#filterfile user.filter # User customizations</literallayout>]]>
803 <!-- ~~~~~ New section ~~~~~ -->
804 <sect3 renderas="sect4" id="logfile"><title>logfile</title>
808 <term>Specifies:</term>
816 <term>Type of value:</term>
818 <para>File name, relative to <literal>logdir</literal></para>
822 <term>Default value:</term>
824 <para><emphasis>Unset (commented out)</emphasis>. When activated: logfile (Unix) <emphasis>or</emphasis> privoxy.log (Windows).</para>
828 <term>Effect if unset:</term>
831 No logfile is written.
839 The logfile is where all logging and error messages are written. The level
840 of detail and number of messages are set with the <literal>debug</literal>
841 option (see below). The logfile can be useful for tracking down a problem with
842 <application>Privoxy</application> (e.g., it's not blocking an ad you
843 think it should block) and it can help you to monitor what your browser
847 Depending on the debug options below, the logfile may be a privacy risk
848 if third parties can get access to it. As most users will never look
849 at it, <application>Privoxy</application> 3.0.7 and later only log fatal
853 For most troubleshooting purposes, you will have to change that,
854 please refer to the debugging section for details.
857 Your logfile will grow indefinitely, and you will probably want to
858 periodically remove it. On Unix systems, you can do this with a cron job
859 (see <quote>man cron</quote>). For Red Hat based Linux distributions, a
860 <command>logrotate</command> script has been included.
863 Any log files must be writable by whatever user <application>Privoxy</application>
864 is being run as (on Unix, default user id is <quote>privoxy</quote>).
870 <![%config-file;[<literallayout>@@logfile logfile</literallayout>]]>
874 <!-- ~~~~~ New section ~~~~~ -->
875 <sect3 renderas="sect4" id="jarfile"><title>jarfile</title>
879 <term>Specifies:</term>
882 The file to store intercepted cookies in
887 <term>Type of value:</term>
889 <para>File name, relative to <literal>logdir</literal></para>
893 <term>Default value:</term>
895 <para><emphasis>Unset (commented out)</emphasis>. When activated: jarfile (Unix) <emphasis>or</emphasis> privoxy.jar (Windows).</para>
899 <term>Effect if unset:</term>
902 Intercepted cookies are not stored in a dedicated log file.
910 The jarfile may grow to ridiculous sizes over time.
913 If debug 8 (show header parsing) is enabled, cookies are
914 also written to the logfile with the rest of the headers.
915 Therefore this option isn't very useful and may be removed
916 in future releases. Please report to the developers if you
923 <![%config-file;[<literallayout>@@#jarfile jarfile</literallayout>]]>
927 <!-- ~~~~~ New section ~~~~~ -->
928 <sect3 renderas="sect4" id="trustfile"><title>trustfile</title>
931 <term>Specifies:</term>
934 The name of the trust file to use
939 <term>Type of value:</term>
941 <para>File name, relative to <literal>confdir</literal></para>
945 <term>Default value:</term>
947 <para><emphasis>Unset (commented out)</emphasis>. When activated: trust (Unix) <emphasis>or</emphasis> trust.txt (Windows)</para>
951 <term>Effect if unset:</term>
954 The entire trust mechanism is disabled.
962 The trust mechanism is an experimental feature for building white-lists and should
963 be used with care. It is <emphasis>NOT</emphasis> recommended for the casual user.
966 If you specify a trust file, <application>Privoxy</application> will only allow
967 access to sites that are specified in the trustfile. Sites can be listed
971 Prepending a <literal>~</literal> character limits access to this site
972 only (and any sub-paths within this site), e.g.
973 <literal>~www.example.com</literal> allows access to
974 <literal>~www.example.com/features/news.html</literal>, etc.
977 Or, you can designate sites as <emphasis>trusted referrers</emphasis>, by
978 prepending the name with a <literal>+</literal> character. The effect is that
979 access to untrusted sites will be granted -- but only if a link from this
980 trusted referrer was used to get there. The link target will then be added
981 to the <quote>trustfile</quote> so that future, direct accesses will be
982 granted. Sites added via this mechanism do not become trusted referrers
983 themselves (i.e. they are added with a <literal>~</literal> designation).
984 There is a limit of 512 such entries, after which new entries will not be
988 If you use the <literal>+</literal> operator in the trust file, it may grow
989 considerably over time.
992 It is recommended that <application>Privoxy</application> be compiled with
993 the <literal>--disable-force</literal>, <literal>--disable-toggle</literal> and
994 <literal> --disable-editor</literal> options, if this feature is to be
998 Possible applications include limiting Internet access for children.
1005 <![%config-file;[<literallayout>@@#trustfile trust</literallayout>]]>
1009 <!-- ~ End section ~ -->
1011 <!-- ~~~~~ New section ~~~~~ -->
1012 <sect2 id="debugging">
1013 <title>Debugging</title>
1016 These options are mainly useful when tracing a problem.
1017 Note that you might also want to invoke
1018 <application>Privoxy</application> with the <literal>--no-daemon</literal>
1019 command line option when debugging.
1022 <sect3 renderas="sect4" id="debug"><title>debug</title>
1026 <term>Specifies:</term>
1029 Key values that determine what information gets logged.
1034 <term>Type of value:</term>
1036 <para>Integer values</para>
1040 <term>Default value:</term>
1042 <para>0 (i.e.: only fatal errors (that cause Privoxy to exit) are logged)</para>
1046 <term>Effect if unset:</term>
1049 Default value is used (see above).
1057 The available debug levels are:
1061 debug 1 # log each request destination (and the crunch reason if &my-app; intercepted the request)
1062 debug 2 # show each connection status
1063 debug 4 # show I/O status
1064 debug 8 # show header parsing
1065 debug 16 # log all data written to the network into the logfile
1066 debug 32 # debug force feature
1067 debug 64 # debug regular expression filters
1068 debug 128 # debug redirects
1069 debug 256 # debug GIF de-animation
1070 debug 512 # Common Log Format
1071 debug 2048 # CGI user interface
1072 debug 4096 # Startup banner and warnings.
1073 debug 8192 # Non-fatal errors
1077 To select multiple debug levels, you can either add them or use
1078 multiple <literal>debug</literal> lines.
1081 A debug level of 1 is informative because it will show you each request
1082 as it happens. <emphasis>1, 4096 and 8192 are recommended</emphasis>
1083 so that you will notice when things go wrong. The other levels are
1084 probably only of interest if you are hunting down a specific problem.
1085 They can produce a hell of an output (especially 16).
1089 &my-app; used to ship with the debug levels recommended above enabled by
1090 default, but due to privacy concerns 3.0.7 and later are configured to
1091 only log fatal errors.
1094 If you are used to the more verbose settings, simply enable the debug lines
1098 If you want to use pure CLF (Common Log Format), you should set <quote>debug
1099 512</quote> <emphasis>ONLY</emphasis> and not enable anything else.
1102 <application>Privoxy</application> has a hard-coded limit for the
1103 length of log messages. If it's reached, messages are logged truncated
1104 and marked with <quote>... [too long, truncated]</quote>.
1107 Please don't file any support requests without trying to reproduce
1108 the problem with increased debug level first. Once you read the log
1109 messages, you may even be able to solve the problem on your own.
1115 <![%config-file;[<literallayout>@@#debug 1 # log each request destination (and the crunch reason if &my-app; intercepted the request)</literallayout>]]>
1116 <![%config-file;[<literallayout>@@#debug 4096 # Startup banner and warnings</literallayout>]]>
1117 <![%config-file;[<literallayout>@@#debug 8192 # Non-fatal errors</literallayout>]]>
1121 <!-- ~~~~~ New section ~~~~~ -->
1122 <sect3 renderas="sect4" id="single-threaded"><title>single-threaded</title>
1126 <term>Specifies:</term>
1129 Whether to run only one server thread.
1134 <term>Type of value:</term>
1136 <para><emphasis>None</emphasis></para>
1140 <term>Default value:</term>
1142 <para><emphasis>Unset</emphasis></para>
1146 <term>Effect if unset:</term>
1149 Multi-threaded (or, where unavailable: forked) operation, i.e. the ability to
1150 serve multiple requests simultaneously.
1158 This option is only there for debugging purposes.
1159 <emphasis>It will drastically reduce performance.</emphasis>
1165 <![%config-file;[<literallayout>@@#single-threaded</literallayout>]]>
1168 <!-- ~~~~~ New section ~~~~~ -->
1169 <sect3 renderas="sect4" id="hostname"><title>hostname</title>
1173 <term>Specifies:</term>
1176 The hostname shown on the CGI pages.
1181 <term>Type of value:</term>
1187 <term>Default value:</term>
1189 <para><emphasis>Unset</emphasis></para>
1193 <term>Effect if unset:</term>
1196 The hostname provided by the operating system is used.
1204 On some misconfigured systems resolving the hostname fails or
1205 takes too much time and slows Privoxy down. Setting a fixed hostname
1206 works around the problem.
1209 In other circumstances it might be desirable to show a hostname
1210 other than the one returned by the operating system. For example
1211 if the system has several different hostnames and you don't want
1212 to use the first one.
1215 Note that Privoxy does not validate the specified hostname value.
1221 <![%config-file;[<literallayout>@@#hostname hostname.example.org</literallayout>]]>
1226 <!-- ~ End section ~ -->
1229 <!-- ~~~~~ New section ~~~~~ -->
1230 <sect2 id="access-control">
1231 <title>Access Control and Security</title>
1234 This section of the config file controls the security-relevant aspects
1235 of <application>Privoxy</application>'s configuration.
1239 <!-- ~~~~~ New section ~~~~~ -->
1240 <sect3 renderas="sect4" id="listen-address"><title>listen-address</title>
1244 <term>Specifies:</term>
1247 The IP address and TCP port on which <application>Privoxy</application> will
1248 listen for client requests.
1253 <term>Type of value:</term>
1255 <para>[<replaceable class="parameter">IP-Address</replaceable>]:<replaceable class="parameter">Port</replaceable></para>
1260 <term>Default value:</term>
1262 <para>127.0.0.1:8118</para>
1266 <term>Effect if unset:</term>
1269 Bind to 127.0.0.1 (localhost), port 8118. This is suitable and recommended for
1270 home users who run <application>Privoxy</application> on the same machine as
1279 You will need to configure your browser(s) to this proxy address and port.
1282 If you already have another service running on port 8118, or if you want to
1283 serve requests from other machines (e.g. on your local network) as well, you
1284 will need to override the default.
1287 If you leave out the IP address, <application>Privoxy</application> will
1288 bind to all interfaces (addresses) on your machine and may become reachable
1289 from the Internet. In that case, consider using <link
1290 linkend="acls">access control lists</link> (ACL's, see below), and/or
1294 If you open <application>Privoxy</application> to untrusted users, you will
1295 also want to make sure that the following actions are disabled: <literal><link
1296 linkend="enable-edit-actions">enable-edit-actions</link></literal> and
1297 <literal><link linkend="enable-remote-toggle">enable-remote-toggle</link></literal>
1302 <term>Example:</term>
1305 Suppose you are running <application>Privoxy</application> on
1306 a machine which has the address 192.168.0.1 on your local private network
1307 (192.168.0.0) and has another outside connection with a different address.
1308 You want it to serve requests from inside only:
1312 listen-address 192.168.0.1:8118
1319 <![%config-file;[<literallayout>@@listen-address 127.0.0.1:8118</literallayout>]]>
1323 <!-- ~~~~~ New section ~~~~~ -->
1324 <sect3 renderas="sect4" id="toggle"><title>toggle</title>
1328 <term>Specifies:</term>
1331 Initial state of "toggle" status
1336 <term>Type of value:</term>
1342 <term>Default value:</term>
1348 <term>Effect if unset:</term>
1351 Act as if toggled on
1359 If set to 0, <application>Privoxy</application> will start in
1360 <quote>toggled off</quote> mode, i.e. mostly behave like a normal,
1361 content-neutral proxy with both ad blocking and content filtering
1362 disabled. See <literal>enable-remote-toggle</literal> below.
1364 This is not really useful
1365 anymore, since toggling is much easier via <ulink
1366 url="http://config.privoxy.org/toggle">the web interface</ulink> than via
1367 editing the <filename>conf</filename> file.
1369 Remote toggling is now disabled by default. fk 2007-11-07)
1373 The windows version will only display the toggle icon in the system tray
1374 if this option is present.
1380 <![%config-file;[<literallayout>@@toggle 1</literallayout>]]>
1384 <!-- ~~~~~ New section ~~~~~ -->
1385 <sect3 renderas="sect4" id="enable-remote-toggle"><title>enable-remote-toggle</title>
1388 <term>Specifies:</term>
1391 Whether or not the <ulink url="http://config.privoxy.org/toggle">web-based toggle
1392 feature</ulink> may be used
1397 <term>Type of value:</term>
1403 <term>Default value:</term>
1409 <term>Effect if unset:</term>
1412 The web-based toggle feature is disabled.
1420 When toggled off, <application>Privoxy</application> mostly acts like a normal,
1421 content-neutral proxy, i.e. doesn't block ads or filter content.
1424 Access to the toggle feature can <emphasis>not</emphasis> be
1425 controlled separately by <quote>ACLs</quote> or HTTP authentication,
1426 so that everybody who can access <application>Privoxy</application> (see
1427 <quote>ACLs</quote> and <literal>listen-address</literal> above) can
1428 toggle it for all users. So this option is <emphasis>not recommended</emphasis>
1429 for multi-user environments with untrusted users.
1432 Note that malicious client side code (e.g Java) is also
1433 capable of using this option.
1436 As a lot of <application>Privoxy</application> users don't read
1437 documentation, this feature is disabled by default.
1440 Note that you must have compiled <application>Privoxy</application> with
1441 support for this feature, otherwise this option has no effect.
1447 <![%config-file;[<literallayout>@@enable-remote-toggle 0</literallayout>]]>
1451 <!-- ~~~~~ New section ~~~~~ -->
1452 <sect3 renderas="sect4" id="enable-remote-http-toggle"><title>enable-remote-http-toggle</title>
1455 <term>Specifies:</term>
1458 Whether or not Privoxy recognizes special HTTP headers to change its behaviour.
1463 <term>Type of value:</term>
1469 <term>Default value:</term>
1475 <term>Effect if unset:</term>
1478 Privoxy ignores special HTTP headers.
1486 When toggled on, the client can change <application>Privoxy's</application>
1487 behaviour by setting special HTTP headers. Currently the only supported
1488 special header is <quote>X-Filter: No</quote>, to disable filtering for
1489 the ongoing request, even if it is enabled in one of the action files.
1492 This feature is disabled by default. If you are using
1493 <application>Privoxy</application> in a environment with trusted clients,
1494 you may enable this feature at your discretion. Note that malicious client
1495 side code (e.g Java) is also capable of using this feature.
1498 This option will be removed in future releases as it has been obsoleted
1499 by the more general header taggers.
1505 <![%config-file;[<literallayout>@@enable-remote-http-toggle 0</literallayout>]]>
1509 <!-- ~~~~~ New section ~~~~~ -->
1510 <sect3 renderas="sect4" id="enable-edit-actions"><title>enable-edit-actions</title>
1513 <term>Specifies:</term>
1516 Whether or not the <ulink url="http://config.privoxy.org/show-status">web-based actions
1517 file editor</ulink> may be used
1522 <term>Type of value:</term>
1528 <term>Default value:</term>
1534 <term>Effect if unset:</term>
1537 The web-based actions file editor is disabled.
1545 Access to the editor can <emphasis>not</emphasis> be
1546 controlled separately by <quote>ACLs</quote> or HTTP authentication,
1547 so that everybody who can access <application>Privoxy</application> (see
1548 <quote>ACLs</quote> and <literal>listen-address</literal> above) can
1549 modify its configuration for all users.
1552 This option is <emphasis>not recommended</emphasis> for environments
1553 with untrusted users and as a lot of <application>Privoxy</application>
1554 users don't read documentation, this feature is disabled by default.
1557 Note that malicious client side code (e.g Java) is also
1558 capable of using the actions editor and you shouldn't enable
1559 this options unless you understand the consequences and are
1560 sure your browser is configured correctly.
1563 Note that you must have compiled <application>Privoxy</application> with
1564 support for this feature, otherwise this option has no effect.
1570 <![%config-file;[<literallayout>@@enable-edit-actions 0</literallayout>]]>
1574 <sect3 renderas="sect4" id="enforce-blocks"><title>enforce-blocks</title>
1577 <term>Specifies:</term>
1580 Whether the user is allowed to ignore blocks and can <quote>go there anyway</quote>.
1585 <term>Type of value:</term>
1588 <replaceable>0 or 1</replaceable>
1593 <term>Default value:</term>
1595 <para><emphasis>0</emphasis></para>
1599 <term>Effect if unset:</term>
1602 Blocks are not enforced.
1610 <application>Privoxy</application> is mainly used to block and filter
1611 requests as a service to the user, for example to block ads and other
1612 junk that clogs the pipes. <application>Privoxy's</application> configuration
1613 isn't perfect and sometimes innocent pages are blocked. In this situation it
1614 makes sense to allow the user to enforce the request and have
1615 <application>Privoxy</application> ignore the block.
1618 In the default configuration <application>Privoxy's</application>
1619 <quote>Blocked</quote> page contains a <quote>go there anyway</quote>
1620 link to adds a special string (the force prefix) to the request URL.
1621 If that link is used, <application>Privoxy</application> will
1622 detect the force prefix, remove it again and let the request pass.
1625 Of course <application>Privoxy</application> can also be used to enforce
1626 a network policy. In that case the user obviously should not be able to
1627 bypass any blocks, and that's what the <quote>enforce-blocks</quote>
1628 option is for. If it's enabled, <application>Privoxy</application> hides
1629 the <quote>go there anyway</quote> link. If the user adds the force
1630 prefix by hand, it will not be accepted and the circumvention attempt
1636 <term>Examples:</term>
1644 <![%config-file;[<literallayout>@@enforce-blocks 0</literallayout>]]>
1648 <!-- ~~~~~ New section ~~~~~ -->
1649 <sect3 renderas="sect4" id="acls"><title>
1650 ACLs: permit-access and deny-access</title>
1651 <anchor id="permit-access">
1652 <anchor id="deny-access">
1656 <term>Specifies:</term>
1659 Who can access what.
1664 <term>Type of value:</term>
1667 <replaceable class="parameter">src_addr</replaceable>[/<replaceable class="parameter">src_masklen</replaceable>]
1668 [<replaceable class="parameter">dst_addr</replaceable>[/<replaceable class="parameter">dst_masklen</replaceable>]]
1671 Where <replaceable class="parameter">src_addr</replaceable> and
1672 <replaceable class="parameter">dst_addr</replaceable> are IP addresses in dotted decimal notation or valid
1673 DNS names, and <replaceable class="parameter">src_masklen</replaceable> and
1674 <replaceable class="parameter">dst_masklen</replaceable> are subnet masks in CIDR notation, i.e. integer
1675 values from 2 to 30 representing the length (in bits) of the network address. The masks and the whole
1676 destination part are optional.
1681 <term>Default value:</term>
1683 <para><emphasis>Unset</emphasis></para>
1687 <term>Effect if unset:</term>
1690 Don't restrict access further than implied by <literal>listen-address</literal>
1698 Access controls are included at the request of ISPs and systems
1699 administrators, and <emphasis>are not usually needed by individual users</emphasis>.
1700 For a typical home user, it will normally suffice to ensure that
1701 <application>Privoxy</application> only listens on the localhost
1702 (127.0.0.1) or internal (home) network address by means of the
1703 <link linkend="listen-address"><emphasis>listen-address</emphasis></link>
1707 Please see the warnings in the FAQ that <application>Privoxy</application>
1708 is not intended to be a substitute for a firewall or to encourage anyone
1709 to defer addressing basic security weaknesses.
1712 Multiple ACL lines are OK.
1713 If any ACLs are specified, <application>Privoxy</application> only talks
1714 to IP addresses that match at least one <literal>permit-access</literal> line
1715 and don't match any subsequent <literal>deny-access</literal> line. In other words, the
1716 last match wins, with the default being <literal>deny-access</literal>.
1719 If <application>Privoxy</application> is using a forwarder (see <literal>forward</literal> below)
1720 for a particular destination URL, the <replaceable class="parameter">dst_addr</replaceable>
1721 that is examined is the address of the forwarder and <emphasis>NOT</emphasis> the address
1722 of the ultimate target. This is necessary because it may be impossible for the local
1723 <application>Privoxy</application> to determine the IP address of the
1724 ultimate target (that's often what gateways are used for).
1727 You should prefer using IP addresses over DNS names, because the address lookups take
1728 time. All DNS names must resolve! You can <emphasis>not</emphasis> use domain patterns
1729 like <quote>*.org</quote> or partial domain names. If a DNS name resolves to multiple
1730 IP addresses, only the first one is used.
1733 Denying access to particular sites by ACL may have undesired side effects
1734 if the site in question is hosted on a machine which also hosts other sites
1740 <term>Examples:</term>
1743 Explicitly define the default behavior if no ACL and
1744 <literal>listen-address</literal> are set: <quote>localhost</quote>
1745 is OK. The absence of a <replaceable class="parameter">dst_addr</replaceable> implies that
1746 <emphasis>all</emphasis> destination addresses are OK:
1750 permit-access localhost
1754 Allow any host on the same class C subnet as www.privoxy.org access to
1755 nothing but www.example.com (or other domains hosted on the same system):
1759 permit-access www.privoxy.org/24 www.example.com/32
1763 Allow access from any host on the 26-bit subnet 192.168.45.64 to anywhere,
1764 with the exception that 192.168.45.73 may not access the IP address behind
1765 www.dirty-stuff.example.com:
1769 permit-access 192.168.45.64/26
1770 deny-access 192.168.45.73 www.dirty-stuff.example.com
1779 <!-- ~~~~~ New section ~~~~~ -->
1780 <sect3 renderas="sect4" id="buffer-limit"><title>buffer-limit</title>
1784 <term>Specifies:</term>
1787 Maximum size of the buffer for content filtering.
1792 <term>Type of value:</term>
1794 <para>Size in Kbytes</para>
1798 <term>Default value:</term>
1804 <term>Effect if unset:</term>
1807 Use a 4MB (4096 KB) limit.
1815 For content filtering, i.e. the <literal>+filter</literal> and
1816 <literal>+deanimate-gif</literal> actions, it is necessary that
1817 <application>Privoxy</application> buffers the entire document body.
1818 This can be potentially dangerous, since a server could just keep sending
1819 data indefinitely and wait for your RAM to exhaust -- with nasty consequences.
1823 When a document buffer size reaches the <literal>buffer-limit</literal>, it is
1824 flushed to the client unfiltered and no further attempt to
1825 filter the rest of the document is made. Remember that there may be multiple threads
1826 running, which might require up to <literal>buffer-limit</literal> Kbytes
1827 <emphasis>each</emphasis>, unless you have enabled <quote>single-threaded</quote>
1834 <![%config-file;[<literallayout>@@buffer-limit 4096</literallayout>]]>
1839 <!-- ~ End section ~ -->
1842 <!-- ~~~~~ New section ~~~~~ -->
1844 <sect2 id="forwarding">
1845 <title>Forwarding</title>
1848 This feature allows routing of HTTP requests through a chain of
1852 Forwarding can be used to chain Privoxy with a caching proxy to speed
1853 up browsing. Using a parent proxy may also be necessary if the machine
1854 that <application>Privoxy</application> runs on has no direct Internet access.
1857 Note that parent proxies can severely decrease your privacy level.
1858 For example a parent proxy could add your IP address to the request
1859 headers and if it's a caching proxy it may add the <quote>Etag</quote>
1860 header to revalidation requests again, even though you configured Privoxy
1861 to remove it. It may also ignore Privoxy's header time randomization and use the
1862 original values which could be used by the server as cookie replacement
1863 to track your steps between visits.
1867 Also specified here are SOCKS proxies. <application>Privoxy</application>
1868 supports the SOCKS 4 and SOCKS 4A protocols.
1871 <sect3 renderas="sect4" id="forward"><title>forward</title>
1874 <term>Specifies:</term>
1877 To which parent HTTP proxy specific requests should be routed.
1882 <term>Type of value:</term>
1885 <replaceable class="parameter">target_pattern</replaceable>
1886 <replaceable class="parameter">http_parent</replaceable>[:<replaceable class="parameter">port</replaceable>]
1889 where <replaceable class="parameter">target_pattern</replaceable> is a <link linkend="af-patterns">URL pattern</link>
1890 that specifies to which requests (i.e. URLs) this forward rule shall apply. Use <literal>/</literal> to
1891 denote <quote>all URLs</quote>.
1892 <replaceable class="parameter">http_parent</replaceable>[:<replaceable class="parameter">port</replaceable>]
1893 is the DNS name or IP address of the parent HTTP proxy through which the requests should be forwarded,
1894 optionally followed by its listening port (default: 8080).
1895 Use a single dot (<literal>.</literal>) to denote <quote>no forwarding</quote>.
1900 <term>Default value:</term>
1902 <para><emphasis>Unset</emphasis></para>
1906 <term>Effect if unset:</term>
1909 Don't use parent HTTP proxies.
1917 If <replaceable class="parameter">http_parent</replaceable> is <quote>.</quote>, then requests are not
1918 forwarded to another HTTP proxy but are made directly to the web servers.
1921 Multiple lines are OK, they are checked in sequence, and the last match wins.
1926 <term>Examples:</term>
1929 Everything goes to an example parent proxy, except SSL on port 443 (which it doesn't handle):
1933 forward / parent-proxy.example.org:8080
1938 Everything goes to our example ISP's caching proxy, except for requests
1939 to that ISP's sites:
1943 forward / caching-proxy.isp.example.net:8000
1944 forward .isp.example.net .
1953 <!-- ~~~~~ New section ~~~~~ -->
1954 <sect3 renderas="sect4" id="socks"><title>
1955 forward-socks4, forward-socks4a and forward-socks5</title>
1956 <anchor id="forward-socks4">
1957 <anchor id="forward-socks4a">
1961 <term>Specifies:</term>
1964 Through which SOCKS proxy (and optionally to which parent HTTP proxy) specific requests should be routed.
1969 <term>Type of value:</term>
1972 <replaceable class="parameter">target_pattern</replaceable>
1973 <replaceable class="parameter">socks_proxy</replaceable>[:<replaceable class="parameter">port</replaceable>]
1974 <replaceable class="parameter">http_parent</replaceable>[:<replaceable class="parameter">port</replaceable>]
1977 where <replaceable class="parameter">target_pattern</replaceable> is a
1978 <link linkend="af-patterns">URL pattern</link> that specifies to which
1979 requests (i.e. URLs) this forward rule shall apply. Use <literal>/</literal> to
1980 denote <quote>all URLs</quote>. <replaceable class="parameter">http_parent</replaceable>
1981 and <replaceable class="parameter">socks_proxy</replaceable>
1982 are IP addresses in dotted decimal notation or valid DNS names
1983 (<replaceable class="parameter">http_parent</replaceable>
1984 may be <quote>.</quote> to denote <quote>no HTTP forwarding</quote>), and the optional
1985 <replaceable class="parameter">port</replaceable> parameters are TCP ports,
1986 i.e. integer values from 1 to 65535
1991 <term>Default value:</term>
1993 <para><emphasis>Unset</emphasis></para>
1997 <term>Effect if unset:</term>
2000 Don't use SOCKS proxies.
2008 Multiple lines are OK, they are checked in sequence, and the last match wins.
2011 The difference between <literal>forward-socks4</literal> and <literal>forward-socks4a</literal>
2012 is that in the SOCKS 4A protocol, the DNS resolution of the target hostname happens on the SOCKS
2013 server, while in SOCKS 4 it happens locally.
2016 With <literal>forward-socks5</literal> the DNS resolution will happen on the remote server as well.
2019 If <replaceable class="parameter">http_parent</replaceable> is <quote>.</quote>, then requests are not
2020 forwarded to another HTTP proxy but are made (HTTP-wise) directly to the web servers, albeit through
2026 <term>Examples:</term>
2029 From the company example.com, direct connections are made to all
2030 <quote>internal</quote> domains, but everything outbound goes through
2031 their ISP's proxy by way of example.com's corporate SOCKS 4A gateway to
2036 forward-socks4a / socks-gw.example.com:1080 www-cache.isp.example.net:8080
2037 forward .example.com .
2041 A rule that uses a SOCKS 4 gateway for all destinations but no HTTP parent looks like this:
2045 forward-socks4 / socks-gw.example.com:1080 .
2050 To chain Privoxy and Tor, both running on the same system, you would use
2055 forward-socks4a / 127.0.0.1:9050 .
2060 The public <application>Tor</application> network can't be used to
2061 reach your local network, if you need to access local servers you
2062 therefore might want to make some exceptions:
2066 forward 192.168.*.*/ .
2068 forward 127.*.*.*/ .
2072 Unencrypted connections to systems in these address ranges will
2073 be as (un)secure as the local network is, but the alternative is that you
2074 can't reach the local network through <application>Privoxy</application>
2075 at all. Of course this may actually be desired and there is no reason
2076 to make these exceptions if you aren't sure you need them.
2079 If you also want to be able to reach servers in your local network by
2080 using their names, you will need additional exceptions that look like
2085 forward localhost/ .
2094 <![%user-man;[ <!-- not included in config due to length -->
2095 <!-- ~~~~~ New section ~~~~~ -->
2096 <sect3 renderas="sect4" id="advanced-forwarding-examples"><title>Advanced Forwarding Examples</title>
2099 If you have links to multiple ISPs that provide various special content
2100 only to their subscribers, you can configure multiple <application>Privoxies</application>
2101 which have connections to the respective ISPs to act as forwarders to each other, so that
2102 <emphasis>your</emphasis> users can see the internal content of all ISPs.
2106 Assume that host-a has a PPP connection to isp-a.example.net. And host-b has a PPP connection to
2107 isp-b.example.org. Both run <application>Privoxy</application>. Their forwarding
2108 configuration can look like this:
2118 forward .isp-b.example.net host-b:8118
2129 forward .isp-a.example.org host-a:8118
2134 Now, your users can set their browser's proxy to use either
2135 host-a or host-b and be able to browse the internal content
2136 of both isp-a and isp-b.
2140 If you intend to chain <application>Privoxy</application> and
2141 <application>squid</application> locally, then chaining as
2142 <literal>browser -> squid -> privoxy</literal> is the recommended way.
2146 Assuming that <application>Privoxy</application> and <application>squid</application>
2147 run on the same box, your <application>squid</application> configuration could then look like this:
2152 # Define Privoxy as parent proxy (without ICP)
2153 cache_peer 127.0.0.1 parent 8118 7 no-query
2155 # Define ACL for protocol FTP
2158 # Do not forward FTP requests to Privoxy
2159 always_direct allow ftp
2161 # Forward all the rest to Privoxy
2162 never_direct allow all</screen>
2166 You would then need to change your browser's proxy settings to <application>squid</application>'s address and port.
2167 Squid normally uses port 3128. If unsure consult <literal>http_port</literal> in <filename>squid.conf</filename>.
2171 You could just as well decide to only forward requests you suspect
2172 of leading to Windows executables through a virus-scanning parent proxy,
2173 say, on <literal>antivir.example.com</literal>, port 8010:
2179 forward /.*\.(exe|com|dll|zip)$ antivir.example.com:8010</screen>
2185 <sect3 renderas="sect4" id="forwarded-connect-retries"><title>forwarded-connect-retries</title>
2188 <term>Specifies:</term>
2191 How often Privoxy retries if a forwarded connection request fails.
2196 <term>Type of value:</term>
2199 <replaceable class="parameter">Number of retries.</replaceable>
2204 <term>Default value:</term>
2206 <para><emphasis>0</emphasis></para>
2210 <term>Effect if unset:</term>
2213 Connections forwarded through other proxies are treated like direct connections and no retry attempts are made.
2221 <replaceable class="parameter">forwarded-connect-retries</replaceable> is mainly interesting
2222 for socks4a connections, where <application>Privoxy</application> can't detect why the connections failed.
2223 The connection might have failed because of a DNS timeout in which case a retry makes sense,
2224 but it might also have failed because the server doesn't exist or isn't reachable. In this
2225 case the retry will just delay the appearance of Privoxy's error message.
2228 Note that in the context of this option, <quote>forwarded connections</quote> includes all connections
2229 that Privoxy forwards through other proxies. This option is not limited to the HTTP CONNECT method.
2232 Only use this option, if you are getting lots of forwarding-related error messages
2233 that go away when you try again manually. Start with a small value and check Privoxy's
2234 logfile from time to time, to see how many retries are usually needed.
2239 <term>Examples:</term>
2242 forwarded-connect-retries 1
2247 <![%config-file;[<literallayout>@@forwarded-connect-retries 0</literallayout>]]>
2250 <sect3 renderas="sect4" id="accept-intercepted-requests"><title>accept-intercepted-requests</title>
2253 <term>Specifies:</term>
2256 Whether intercepted requests should be treated as valid.
2261 <term>Type of value:</term>
2264 <replaceable>0 or 1</replaceable>
2269 <term>Default value:</term>
2271 <para><emphasis>0</emphasis></para>
2275 <term>Effect if unset:</term>
2278 Only proxy requests are accepted, intercepted requests are treated as invalid.
2286 If you don't trust your clients and want to force them
2287 to use <application>Privoxy</application>, enable this
2288 option and configure your packet filter to redirect outgoing
2289 HTTP connections into <application>Privoxy</application>.
2292 Make sure that <application>Privoxy's</application> own requests
2293 aren't redirected as well. Additionally take care that
2294 <application>Privoxy</application> can't intentionally connect
2295 to itself, otherwise you could run into redirection loops if
2296 <application>Privoxy's</application> listening port is reachable
2297 by the outside or an attacker has access to the pages you visit.
2302 <term>Examples:</term>
2305 accept-intercepted-requests 1
2310 <![%config-file;[<literallayout>@@accept-intercepted-requests 0</literallayout>]]>
2313 <sect3 renderas="sect4" id="allow-cgi-request-crunching"><title>allow-cgi-request-crunching</title>
2316 <term>Specifies:</term>
2319 Whether requests to <application>Privoxy's</application> CGI pages can be blocked or redirected.
2324 <term>Type of value:</term>
2327 <replaceable>0 or 1</replaceable>
2332 <term>Default value:</term>
2334 <para><emphasis>0</emphasis></para>
2338 <term>Effect if unset:</term>
2341 <application>Privoxy</application> ignores block and redirect actions for its CGI pages.
2349 By default <application>Privoxy</application> ignores block or redirect actions
2350 for its CGI pages. Intercepting these requests can be useful in multi-user
2351 setups to implement fine-grained access control, but it can also render the complete
2352 web interface useless and make debugging problems painful if done without care.
2355 Don't enable this option unless you're sure that you really need it.
2360 <term>Examples:</term>
2363 allow-cgi-request-crunching 1
2368 <![%config-file;[<literallayout>@@allow-cgi-request-crunching 0</literallayout>]]>
2371 <sect3 renderas="sect4" id="split-large-forms"><title>split-large-forms</title>
2374 <term>Specifies:</term>
2377 Whether the CGI interface should stay compatible with broken HTTP clients.
2382 <term>Type of value:</term>
2385 <replaceable>0 or 1</replaceable>
2390 <term>Default value:</term>
2392 <para><emphasis>0</emphasis></para>
2396 <term>Effect if unset:</term>
2399 The CGI form generate long GET URLs.
2407 <application>Privoxy's</application> CGI forms can lead to
2408 rather long URLs. This isn't a problem as far as the HTTP
2409 standard is concerned, but it can confuse clients with arbitrary
2410 URL length limitations.
2413 Enabling split-large-forms causes <application>Privoxy</application>
2414 to divide big forms into smaller ones to keep the URL length down.
2415 It makes editing a lot less convenient and you can no longer
2416 submit all changes at once, but at least it works around this
2420 If you don't notice any editing problems, there is no reason
2421 to enable this option, but if one of the submit buttons appears
2422 to be broken, you should give it a try.
2427 <term>Examples:</term>
2435 <![%config-file;[<literallayout>@@split-large-forms 0</literallayout>]]>
2440 <!-- ~ End section ~ -->
2443 <!-- ~~~~~ New section ~~~~~ -->
2445 <sect2 id="windows-gui">
2446 <title>Windows GUI Options</title>
2448 <application>Privoxy</application> has a number of options specific to the
2449 Windows GUI interface:
2452 <anchor id="activity-animation">
2453 <![%config-file;[<para>@@</para>]]> <!-- for spacing -->
2455 If <quote>activity-animation</quote> is set to 1, the
2456 <application>Privoxy</application> icon will animate when
2457 <quote>Privoxy</quote> is active. To turn off, set to 0.
2460 <![%config-file;[<literallayout>@@#activity-animation 1</literallayout>]]>
2466 <emphasis>activity-animation 1</emphasis>
2473 <anchor id="log-messages">
2474 <![%config-file;[<para>@@</para>]]> <!-- for spacing -->
2476 If <quote>log-messages</quote> is set to 1,
2477 <application>Privoxy</application> will log messages to the console
2481 <![%config-file;[<literallayout>@@#log-messages 1</literallayout>]]>
2487 <emphasis>log-messages 1</emphasis>
2494 <anchor id="log-buffer-size">
2495 <![%config-file;[<para>@@</para>]]> <!-- for spacing -->
2497 If <quote>log-buffer-size</quote> is set to 1, the size of the log buffer,
2498 i.e. the amount of memory used for the log messages displayed in the
2499 console window, will be limited to <quote>log-max-lines</quote> (see below).
2503 Warning: Setting this to 0 will result in the buffer to grow infinitely and
2504 eat up all your memory!
2507 <![%config-file;[<literallayout>@@#log-buffer-size 1</literallayout>]]>
2513 <emphasis>log-buffer-size 1</emphasis>
2520 <anchor id="log-max-lines">
2521 <![%config-file;[<para>@@</para>]]> <!-- for spacing -->
2523 <application>log-max-lines</application> is the maximum number of lines held
2524 in the log buffer. See above.
2527 <![%config-file;[<literallayout>@@#log-max-lines 200</literallayout>]]>
2533 <emphasis>log-max-lines 200</emphasis>
2540 <anchor id="log-highlight-messages">
2541 <![%config-file;[<para>@@</para>]]> <!-- for spacing -->
2543 If <quote>log-highlight-messages</quote> is set to 1,
2544 <application>Privoxy</application> will highlight portions of the log
2545 messages with a bold-faced font:
2548 <![%config-file;[<literallayout>@@#log-highlight-messages 1</literallayout>]]>
2554 <emphasis>log-highlight-messages 1</emphasis>
2561 <anchor id="log-font-name">
2562 <![%config-file;[<para>@@</para>]]> <!-- for spacing -->
2564 The font used in the console window:
2567 <![%config-file;[<literallayout>@@#log-font-name Comic Sans MS</literallayout>]]>
2573 <emphasis>log-font-name Comic Sans MS</emphasis>
2580 <anchor id="log-font-size">
2581 <![%config-file;[<para>@@</para>]]> <!-- for spacing -->
2583 Font size used in the console window:
2586 <![%config-file;[<literallayout>@@#log-font-size 8</literallayout>]]>
2592 <emphasis>log-font-size 8</emphasis>
2599 <anchor id="show-on-task-bar">
2600 <![%config-file;[<para>@@</para>]]> <!-- for spacing -->
2602 <quote>show-on-task-bar</quote> controls whether or not
2603 <application>Privoxy</application> will appear as a button on the Task bar
2607 <![%config-file;[<literallayout>@@#show-on-task-bar 0</literallayout>]]>
2613 <emphasis>show-on-task-bar 0</emphasis>
2620 <anchor id="close-button-minimizes">
2621 <![%config-file;[<para>@@</para>]]> <!-- for spacing -->
2623 If <quote>close-button-minimizes</quote> is set to 1, the Windows close
2624 button will minimize <application>Privoxy</application> instead of closing
2625 the program (close with the exit option on the File menu).
2628 <![%config-file;[<literallayout>@@#close-button-minimizes 1</literallayout>]]>
2634 <emphasis>close-button-minimizes 1</emphasis>
2641 <anchor id="hide-console">
2642 <![%config-file;[<para>@@</para>]]> <!-- for spacing -->
2644 The <quote>hide-console</quote> option is specific to the MS-Win console
2645 version of <application>Privoxy</application>. If this option is used,
2646 <application>Privoxy</application> will disconnect from and hide the
2650 <![%config-file;[<literallayout>@@#hide-console</literallayout>]]>
2656 #<emphasis>hide-console</emphasis>
2666 <!-- end config content common to both outputs -->
2669 <!-- These are dummy anchors to keep the processor quiet -->
2670 <!-- when building config-file only (ie. they are used in u-m only) -->
2673 <anchor id="filter">
2674 <anchor id="filter-file">
2676 <anchor id="actions-file">
2677 <anchor id="af-patterns">
2681 <!-- eof p-config.sgml -->