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- <div class="SECT1">
- <h1 class="SECT1"><a name="CONFIGURATION" id="CONFIGURATION">3. Configuration</a></h1>
- <div class="SECT2">
- <h3 class="SECT2"><a name="ACTIONSFILE" id="ACTIONSFILE">3.1. What exactly is an <span class=
- "QUOTE">"actions"</span> file?</a></h3>
- <p><span class="APPLICATION">Privoxy</span> utilizes the concept of <span class="QUOTE">" <a href=
- "../user-manual/actions-file.html#ACTIONS" target="_top">actions</a>"</span> that are used to manipulate and
- control web page data. <a href="../user-manual/actions-file.html" target="_top">Actions files</a> are where these
- <a href="../user-manual/actions-file.html#ACTIONS" target="_top">actions</a> that <span class=
- "APPLICATION">Privoxy</span> could take while processing a certain request, are configured. Typically, you would
- define a set of default actions that apply globally to all URLs, then add exceptions to these defaults where
- needed. There is a wide array of actions available that give the user a high degree of control and flexibility on
- how to process each and every web page.</p>
- <p>Actions can be defined on a <a href="../user-manual/actions-file.html#AF-PATTERNS" target="_top">URL
- pattern</a> basis, i.e. for single URLs, whole web sites, groups or parts thereof etc. Actions can also be
- grouped together and then applied to requests matching one or more patterns. There are many possible actions that
- might apply to any given site. As an example, if you are blocking <a href=
- "http://en.wikipedia.org/wiki/Browser_cookie" target="_top">cookies</a> as one of your default actions, but need
- to accept cookies from a given site, you would need to define an exception for this site in one of your actions
- files, preferably in <tt class="FILENAME">user.action</tt>.</p>
- </div>
- <div class="SECT2">
- <h3 class="SECT2"><a name="ACTIONSS" id="ACTIONSS">3.2. The <span class="QUOTE">"actions"</span> concept confuses
- me. Please list some of these <span class="QUOTE">"actions"</span>.</a></h3>
- <p>For a comprehensive discussion of the actions concept, please refer to the <a href=
- "../user-manual/actions-file.html" target="_top">actions file chapter</a> in the <a href=
- "../user-manual/index.html" target="_top">User Manual</a>. It includes a <a href=
- "../user-manual/actions-file.html#ACTIONS" target="_top">list of all actions</a> and an <a href=
- "../user-manual/actions-file.html#ACT-EXAMPLES" target="_top">actions file tutorial</a> to get you started.</p>
- </div>
- <div class="SECT2">
- <h3 class="SECT2"><a name="ACTCONFIG" id="ACTCONFIG">3.3. How are actions files configured? What is the easiest
- way to do this?</a></h3>
- <p>Actions files are just text files in a special syntax and can be edited with a text editor. But probably the
- easiest way is to access <span class="APPLICATION">Privoxy</span>'s user interface with your web browser at
- <a href="http://config.privoxy.org/" target="_top">http://config.privoxy.org/</a> (Shortcut: <a href=
- "http://p.p/" target="_top">http://p.p/</a>) and then select <span class="QUOTE">"<a href=
- "http://config.privoxy.org/show-status" target="_top">View & change the current configuration</a>"</span>
- from the menu. Note that this feature must be explicitly enabled in the main config file (see <a href=
- "../user-manual/config.html#ENABLE-EDIT-ACTIONS" target="_top">enable-edit-actions</a>).</p>
- </div>
- <div class="SECT2">
- <h3 class="SECT2"><a name="AEN420" id="AEN420">3.4. There are several different <span class=
- "QUOTE">"actions"</span> files. What are the differences?</a></h3>
- <p>Please have a look at the <a href="../user-manual/actions-file.html" target="_top">the actions chapter</a> in
- the <a href="../user-manual/index.html" target="_top">User Manual</a> for a detailed explanation.</p>
- </div>
- <div class="SECT2">
- <h3 class="SECT2"><a name="GETUPDATES" id="GETUPDATES">3.5. Where can I get updated Actions Files?</a></h3>
- <p>Based on your feedback and the continuing development, updates of <tt class="FILENAME">default.action</tt>
- will be made available from time to time on the <a href=
- "https://sourceforge.net/project/showfiles.php?group_id=11118" target="_top">files section</a> of our <a href=
- "https://sourceforge.net/projects/ijbswa/" target="_top">project page</a>.</p>
- <p>If you wish to receive an email notification whenever we release updates of <span class=
- "APPLICATION">Privoxy</span> or the actions file, <a href=
- "https://lists.privoxy.org/mailman/listinfo/privoxy-announce" target="_top">subscribe to our announce mailing
- list</a>, privoxy-announce@lists.privoxy.org.</p>
- </div>
- <div class="SECT2">
- <h3 class="SECT2"><a name="NEWCONFIG" id="NEWCONFIG">3.6. Can I use my old config files?</a></h3>
- <p>The syntax and purpose of configuration files has remained roughly the same throughout the 3.x series, but
- backwards compatibility is not guaranteed. Also each release contains updated, <span class=
- "QUOTE">"improved"</span> versions and it is therefore strongly recommended to install the newer configuration
- files and merge back your modifications.</p>
- </div>
- <div class="SECT2">
- <h3 class="SECT2"><a name="DIFFICULT" id="DIFFICULT">3.7. Why is the configuration so complicated?</a></h3>
- <p><span class="QUOTE">"Complicated"</span> is in the eye of the beholder.</p>
- <p>Privoxy is currently mainly written by and for people who are already familiar with the underlying concepts
- like regular expressions, HTTP and HTML, or are willing to become familiar with them to be able to get the most
- out of a powerful and flexible tool such as Privoxy.</p>
- <p>While everybody is expected to be able to get a Privoxy default installation up and running, fine-tuning
- requires a certain amount of background information and Privoxy's documentation mainly concentrates on the
- Privoxy-specific parts while only providing references to the rest.</p>
- <p>If you or anyone you know has the skills, time and energy to reduce the barrier of entry, please <a href=
- "general.html#PARTICIPATE">get involved</a>.</p>
- </div>
- <div class="SECT2">
- <h3 class="SECT2"><a name="YAHOO" id="YAHOO">3.8. How can I make my Yahoo/Hotmail/Gmail account work?</a></h3>
- <p>The default configuration shouldn't impact the usability of any of these services. It may, however, make all
- <a href="http://en.wikipedia.org/wiki/Browser_cookie" target="_top">cookies</a> temporary, so that your browser
- will forget your login credentials in between browser sessions. If you would like not to have to log in manually
- each time you access those websites, simply turn off all cookie handling for them in the <tt class=
- "FILENAME">user.action</tt> file. An example for yahoo might look like:</p>
- <table border="0" bgcolor="#E0E0E0" width="100%">
- <tr>
- <td>
- <pre class="SCREEN"># Allow all cookies for Yahoo login:
+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN""http://www.w3.org/TR/html4/loose.dtd">
+<HTML
+><HEAD
+><TITLE
+>Configuration</TITLE
+><META
+NAME="GENERATOR"
+CONTENT="Modular DocBook HTML Stylesheet Version 1.79"><LINK
+REL="HOME"
+TITLE="Privoxy Frequently Asked Questions"
+HREF="index.html"><LINK
+REL="PREVIOUS"
+TITLE="Installation"
+HREF="installation.html"><LINK
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+TITLE="Miscellaneous"
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+REL="STYLESHEET"
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+HTTP-EQUIV="Content-Type"
+CONTENT="text/html;
+charset=ISO-8859-1"></HEAD
+><BODY
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+><TH
+COLSPAN="3"
+ALIGN="center"
+>Privoxy Frequently Asked Questions</TH
+></TR
+><TR
+><TD
+WIDTH="10%"
+ALIGN="left"
+VALIGN="bottom"
+><A
+HREF="installation.html"
+ACCESSKEY="P"
+>Prev</A
+></TD
+><TD
+WIDTH="80%"
+ALIGN="center"
+VALIGN="bottom"
+></TD
+><TD
+WIDTH="10%"
+ALIGN="right"
+VALIGN="bottom"
+><A
+HREF="misc.html"
+ACCESSKEY="N"
+>Next</A
+></TD
+></TR
+></TABLE
+><HR
+ALIGN="LEFT"
+WIDTH="100%"></DIV
+><DIV
+CLASS="SECT1"
+><H1
+CLASS="SECT1"
+><A
+NAME="CONFIGURATION"
+>3. Configuration</A
+></H1
+><DIV
+CLASS="SECT2"
+><H3
+CLASS="SECT2"
+><A
+NAME="ACTIONSFILE"
+>3.1. What exactly is an <SPAN
+CLASS="QUOTE"
+>"actions"</SPAN
+> file?</A
+></H3
+><P
+> <SPAN
+CLASS="APPLICATION"
+>Privoxy</SPAN
+> utilizes the concept of <SPAN
+CLASS="QUOTE"
+>" <A
+HREF="../user-manual/actions-file.html#ACTIONS"
+TARGET="_top"
+>actions</A
+>"</SPAN
+>
+ that are used to manipulate and control web page data.
+ <A
+HREF="../user-manual/actions-file.html"
+TARGET="_top"
+>Actions files</A
+>
+ are where these <A
+HREF="../user-manual/actions-file.html#ACTIONS"
+TARGET="_top"
+>actions</A
+>
+ that <SPAN
+CLASS="APPLICATION"
+>Privoxy</SPAN
+> could take while processing a certain
+ request, are configured. Typically, you would define a set of default actions
+ that apply globally to all URLs, then add exceptions to these defaults where needed.
+ There is a wide array of actions available that give the user a high degree
+ of control and flexibility on how to process each and every web page.</P
+><P
+> Actions can be defined on a <A
+HREF="../user-manual/actions-file.html#AF-PATTERNS"
+TARGET="_top"
+>URL pattern</A
+> basis, i.e.
+ for single URLs, whole web sites, groups or parts thereof etc. Actions can also be
+ grouped together and then applied to requests matching one or more patterns.
+ There are many possible actions that might apply to any given site. As an example,
+ if you are blocking <A
+HREF="http://en.wikipedia.org/wiki/Browser_cookie"
+TARGET="_top"
+>cookies</A
+>
+ as one of your default actions, but need to accept cookies from a given site,
+ you would need to define an exception for this site in one of your actions
+ files, preferably in <TT
+CLASS="FILENAME"
+>user.action</TT
+>.</P
+></DIV
+><DIV
+CLASS="SECT2"
+><H3
+CLASS="SECT2"
+><A
+NAME="ACTIONSS"
+>3.2. The <SPAN
+CLASS="QUOTE"
+>"actions"</SPAN
+> concept confuses me. Please list
+some of these <SPAN
+CLASS="QUOTE"
+>"actions"</SPAN
+>.</A
+></H3
+><P
+> For a comprehensive discussion of the actions concept, please refer
+ to the <A
+HREF="../user-manual/actions-file.html"
+TARGET="_top"
+>actions file
+ chapter</A
+> in the <A
+HREF="../user-manual/index.html"
+TARGET="_top"
+>User
+ Manual</A
+>. It includes a <A
+HREF="../user-manual/actions-file.html#ACTIONS"
+TARGET="_top"
+>list of all actions</A
+>
+ and an <A
+HREF="../user-manual/actions-file.html#ACT-EXAMPLES"
+TARGET="_top"
+>actions
+ file tutorial</A
+> to get you started.</P
+></DIV
+><DIV
+CLASS="SECT2"
+><H3
+CLASS="SECT2"
+><A
+NAME="ACTCONFIG"
+>3.3. How are actions files configured? What is the easiest
+way to do this?</A
+></H3
+><P
+> Actions files are just text files in a special syntax and can be edited
+ with a text editor. But probably the easiest way is to access
+ <SPAN
+CLASS="APPLICATION"
+>Privoxy</SPAN
+>'s user interface with your web browser
+ at <A
+HREF="http://config.privoxy.org/"
+TARGET="_top"
+>http://config.privoxy.org/</A
+>
+ (Shortcut: <A
+HREF="http://p.p/"
+TARGET="_top"
+>http://p.p/</A
+>) and then select
+ <SPAN
+CLASS="QUOTE"
+>"<A
+HREF="http://config.privoxy.org/show-status"
+TARGET="_top"
+>View &
+ change the current configuration</A
+>"</SPAN
+> from the menu. Note
+ that this feature must be explicitly enabled in the main config file
+ (see <A
+HREF="../user-manual/config.html#ENABLE-EDIT-ACTIONS"
+TARGET="_top"
+>enable-edit-actions</A
+>).</P
+></DIV
+><DIV
+CLASS="SECT2"
+><H3
+CLASS="SECT2"
+><A
+NAME="AEN419"
+>3.4. There are several different <SPAN
+CLASS="QUOTE"
+>"actions"</SPAN
+> files. What are
+the differences?</A
+></H3
+><P
+> Please have a look at the <A
+HREF="../user-manual/actions-file.html"
+TARGET="_top"
+>the actions chapter</A
+>
+ in the <A
+HREF="../user-manual/index.html"
+TARGET="_top"
+>User Manual</A
+> for a detailed explanation.</P
+></DIV
+><DIV
+CLASS="SECT2"
+><H3
+CLASS="SECT2"
+><A
+NAME="GETUPDATES"
+>3.5. Where can I get updated Actions Files?</A
+></H3
+><P
+> Based on your feedback and the continuing development, updates of
+ <TT
+CLASS="FILENAME"
+>default.action</TT
+> will be
+ made available from time to time on the <A
+HREF="https://sourceforge.net/project/showfiles.php?group_id=11118"
+TARGET="_top"
+>files section</A
+> of
+ our <A
+HREF="https://sourceforge.net/projects/ijbswa/"
+TARGET="_top"
+>project page</A
+>.
+ </P
+><P
+> If you wish to receive an email notification whenever we release updates of
+ <SPAN
+CLASS="APPLICATION"
+>Privoxy</SPAN
+> or the actions file, <A
+HREF="https://lists.privoxy.org/mailman/listinfo/privoxy-announce"
+TARGET="_top"
+>subscribe
+ to our announce mailing list</A
+>, privoxy-announce@lists.privoxy.org.
+ </P
+></DIV
+><DIV
+CLASS="SECT2"
+><H3
+CLASS="SECT2"
+><A
+NAME="NEWCONFIG"
+>3.6. Can I use my old config files?</A
+></H3
+><P
+> The syntax and purpose of configuration files has remained roughly the
+ same throughout the 3.x series, but backwards compatibility is not guaranteed.
+ Also each release contains updated, <SPAN
+CLASS="QUOTE"
+>"improved"</SPAN
+> versions and it is
+ therefore strongly recommended to install the newer configuration files
+ and merge back your modifications.
+ </P
+></DIV
+><DIV
+CLASS="SECT2"
+><H3
+CLASS="SECT2"
+><A
+NAME="DIFFICULT"
+>3.7. Why is the configuration so complicated?</A
+></H3
+><P
+> <SPAN
+CLASS="QUOTE"
+>"Complicated"</SPAN
+> is in the eye of the beholder.
+ </P
+><P
+> Privoxy is currently mainly written by and for people who are already
+ familiar with the underlying concepts like regular expressions, HTTP and HTML,
+ or are willing to become familiar with them to be able to get the most
+ out of a powerful and flexible tool such as Privoxy.
+ </P
+><P
+> While everybody is expected to be able to get a Privoxy default installation
+ up and running, fine-tuning requires a certain amount of background
+ information and Privoxy's documentation mainly concentrates on the
+ Privoxy-specific parts while only providing references to the rest.
+ </P
+><P
+> If you or anyone you know has the skills, time and energy to
+ reduce the barrier of entry, please <A
+HREF="general.html#PARTICIPATE"
+>get involved</A
+>.
+ </P
+></DIV
+><DIV
+CLASS="SECT2"
+><H3
+CLASS="SECT2"
+><A
+NAME="YAHOO"
+>3.8. How can I make my Yahoo/Hotmail/Gmail account work?</A
+></H3
+><P
+> The default configuration shouldn't impact the usability of any of these services.
+ It may, however, make all <A
+HREF="http://en.wikipedia.org/wiki/Browser_cookie"
+TARGET="_top"
+>cookies</A
+>
+ temporary, so that your browser will forget your
+ login credentials in between browser sessions. If you would like not to have to log
+ in manually each time you access those websites, simply turn off all cookie handling
+ for them in the <TT
+CLASS="FILENAME"
+>user.action</TT
+> file. An example for yahoo might
+ look like:
+ </P
+><TABLE
+BORDER="0"
+BGCOLOR="#E0E0E0"
+WIDTH="100%"
+><TR
+><TD
+><PRE
+CLASS="SCREEN"
+># Allow all cookies for Yahoo login:
#
-{ -<a href="../user-manual/actions-file.html#CRUNCH-INCOMING-COOKIES" target=
-"_top">crunch-incoming-cookies</a> -<a href="../user-manual/actions-file.html#CRUNCH-OUTGOING-COOKIES" target=
-"_top">crunch-outgoing-cookies</a> -<a href="../user-manual/actions-file.html#SESSION-COOKIES-ONLY" target=
-"_top">session-cookies-only</a> }
-.login.yahoo.com</pre>
- </td>
- </tr>
- </table>
- <p>These kinds of sites are often quite complex and heavy with <a href="http://en.wikipedia.org/wiki/Javascript"
- target="_top">Javascript</a> and thus <span class="QUOTE">"fragile"</span>. So if <span class=
- "emphasis"><i class="EMPHASIS">still</i></span> a problem, we have an <a href=
- "../user-manual/actions-file.html#ALIASES" target="_top">alias</a> just for such sticky situations:</p>
- <table border="0" bgcolor="#E0E0E0" width="100%">
- <tr>
- <td>
- <pre class="SCREEN"># Gmail is a _fragile_ site:
+{ -<A
+HREF="../user-manual/actions-file.html#CRUNCH-INCOMING-COOKIES"
+TARGET="_top"
+>crunch-incoming-cookies</A
+> -<A
+HREF="../user-manual/actions-file.html#CRUNCH-OUTGOING-COOKIES"
+TARGET="_top"
+>crunch-outgoing-cookies</A
+> -<A
+HREF="../user-manual/actions-file.html#SESSION-COOKIES-ONLY"
+TARGET="_top"
+>session-cookies-only</A
+> }
+.login.yahoo.com</PRE
+></TD
+></TR
+></TABLE
+><P
+> These kinds of sites are often quite complex and heavy with
+ <A
+HREF="http://en.wikipedia.org/wiki/Javascript"
+TARGET="_top"
+>Javascript</A
+> and
+ thus <SPAN
+CLASS="QUOTE"
+>"fragile"</SPAN
+>. So if <SPAN
+CLASS="emphasis"
+><I
+CLASS="EMPHASIS"
+>still</I
+></SPAN
+> a problem,
+ we have an <A
+HREF="../user-manual/actions-file.html#ALIASES"
+TARGET="_top"
+>alias</A
+> just for such
+ sticky situations:
+ </P
+><TABLE
+BORDER="0"
+BGCOLOR="#E0E0E0"
+WIDTH="100%"
+><TR
+><TD
+><PRE
+CLASS="SCREEN"
+># Gmail is a _fragile_ site:
#
-{ <tt class="LITERAL">fragile</tt> }
+{ <TT
+CLASS="LITERAL"
+>fragile</TT
+> }
# Gmail is ...
- mail.google.com</pre>
- </td>
- </tr>
- </table>
- <p>Be sure to flush your browser's caches whenever making these kinds of changes, just to make sure the changes
- <span class="QUOTE">"take"</span>.</p>
- <p>Make sure the domain, host and path are appropriate as well. Your browser can tell you where you are
- specifically and you should use that information for your configuration settings. Note that above it is not
- referenced as <tt class="LITERAL">gmail.com</tt>, which is a valid domain name.</p>
- </div>
- <div class="SECT2">
- <h3 class="SECT2"><a name="CONFIGFILES" id="CONFIGFILES">3.9. What's the difference between the <span class=
- "QUOTE">"Cautious"</span>, <span class="QUOTE">"Medium"</span> and <span class="QUOTE">"Advanced"</span>
- defaults?</a></h3>
- <p>Configuring <span class="APPLICATION">Privoxy</span> is not entirely trivial. To help you get started, we
- provide you with three different default action <span class="QUOTE">"profiles"</span> in the web based actions
- file editor at <a href="http://config.privoxy.org/show-status" target=
- "_top">http://config.privoxy.org/show-status</a>. See the <a href="../user-manual/actions-file.html" target=
- "_top"><i class="CITETITLE">User Manual</i></a> for a list of actions, and how the default profiles are set.</p>
- <p>Where the defaults are likely to break some sites, exceptions for known popular <span class=
- "QUOTE">"problem"</span> sites are included, but in general, the more aggressive your default settings are, the
- more exceptions you will have to make later. New users are best to start off in <span class=
- "QUOTE">"Cautious"</span> setting. This is safest and will have the fewest problems. See the <a href=
- "../user-manual/index.html" target="_top"><i class="CITETITLE">User Manual</i></a> for a more detailed
- discussion.</p>
- <p>It should be noted that the <span class="QUOTE">"Advanced"</span> profile (formerly known as the <span class=
- "QUOTE">"Adventuresome"</span> profile) is more aggressive, and will make use of some of <span class=
- "APPLICATION">Privoxy's</span> advanced features. Use at your own risk!</p>
- </div>
- <div class="SECT2">
- <h3 class="SECT2"><a name="BROWSECONFIG" id="BROWSECONFIG">3.10. Why can I change the configuration with a
- browser? Does that not raise security issues?</a></h3>
- <p>It may seem strange that regular users can edit the config files with their browsers, although the whole
- <tt class="FILENAME">/etc/privoxy</tt> hierarchy belongs to the user <span class="QUOTE">"privoxy"</span>, with
- only 644 permissions.</p>
- <p>When you use the browser-based editor, <span class="APPLICATION">Privoxy</span> itself is writing to the
- config files. Because <span class="APPLICATION">Privoxy</span> is running as the user <span class=
- "QUOTE">"privoxy"</span>, it can update its own config files.</p>
- <p>If you run <span class="APPLICATION">Privoxy</span> for multiple untrusted users (e.g. in a LAN) or aren't
- entirely in control of your own browser, you will probably want to make sure that the web-based editor and remote
- toggle features are <span class="QUOTE">"off"</span> by setting <span class="QUOTE">"<tt class="LITERAL"><a href=
- "../user-manual/config.html#ENABLE-EDIT-ACTIONS" target="_top">enable-edit-actions</a> 0</tt>"</span> and
- <span class="QUOTE">"<tt class="LITERAL"><a href="../user-manual/config.html#ENABLE-REMOTE-TOGGLE" target=
- "_top">enable-remote-toggle</a> 0</tt>"</span> in the <a href="../user-manual/config.html" target="_top">main
- configuration file</a>.</p>
- <p>As of <span class="APPLICATION">Privoxy</span> 3.0.7 these options are disabled by default.</p>
- </div>
- <div class="SECT2">
- <h3 class="SECT2"><a name="FILTERFILE" id="FILTERFILE">3.11. What is the <tt class="FILENAME">default.filter</tt>
- file? What is a <span class="QUOTE">"filter"</span>?</a></h3>
- <p>The <a href="../user-manual/filter-file.html" target="_top"><tt class="FILENAME">default.filter</tt></a> file
- is where <span class="emphasis"><i class="EMPHASIS">filters</i></span> as supplied by the developers are defined.
- Filters are a special subset of actions that can be used to modify or remove web page content or headers on the
- fly. Content filters can be applied to <span class="emphasis"><i class="EMPHASIS">anything</i></span> in the page
- source, header filters can be applied to either server or client headers. Regular expressions are used to
- accomplish this.</p>
- <p>There are a number of pre-defined filters to deal with common annoyances. The filters are only defined here,
- to invoke them, you need to use the <a href="../user-manual/actions-file.html#FILTER" target="_top"><tt class=
- "LITERAL">filter</tt> action</a> in one of the actions files. Content filtering is automatically disabled for
- inappropriate MIME types, but if you know better than Privoxy what should or should not be filtered you can
- filter any content you like.</p>
- <p>Filters should <span class="emphasis"><i class="EMPHASIS">not</i></span> be confused with <a href=
- "../user-manual/actions-file.html#BLOCK" target="_top"><tt class="LITERAL">blocks</tt></a>, which is a completely
- different action, and is more typically used to block ads and unwanted sites.</p>
- <p>If you are familiar with regular expressions, and HTML, you can look at the provided <tt class=
- "FILENAME">default.filter</tt> with a text editor and define your own filters. This is potentially a very
- powerful feature, but requires some expertise in both regular expressions and HTML/HTTP. You should place any
- modifications to the default filters, or any new ones you create in a separate file, such as <tt class=
- "FILENAME">user.filter</tt>, so they won't be overwritten during upgrades. The ability to define multiple filter
- files in <tt class="FILENAME">config</tt> is a new feature as of v. 3.0.5.</p>
- <p>There is no GUI editor option for this part of the configuration, but you can disable/enable the various
- pre-defined filters of the included <tt class="FILENAME">default.filter</tt> file with the <a href=
- "http://config.privoxy.org/show-status" target="_top">web-based actions file editor</a>. Note that the custom
- actions editor must be explicitly enabled in the main config file (see <a href=
- "../user-manual/config.html#ENABLE-EDIT-ACTIONS" target="_top">enable-edit-actions</a>).</p>
- <p>If you intend to develop your own filters, you might want to have a look at <a href=
- "https://www.fabiankeil.de/sourcecode/pft/" target="_top">Privoxy-Filter-Test</a>.</p>
- </div>
- <div class="SECT2">
- <h3 class="SECT2"><a name="LANCONFIG" id="LANCONFIG">3.12. How can I set up Privoxy to act as a proxy for my
- LAN?</a></h3>
- <p>By default, <span class="APPLICATION">Privoxy</span> only responds to requests from <tt class=
- "LITERAL">127.0.0.1</tt> (localhost). To have it act as a server for a network, this needs to be changed in the
- <a href="../user-manual/config.html" target="_top">main configuration file</a>. Look for the <tt class=
- "LITERAL"><a href="../user-manual/config.html#LISTEN-ADDRESS" target="_top">listen-address</a></tt> option, which
- may be commented out with a <span class="QUOTE">"#"</span> symbol. Make sure it is uncommented, and assign it the
- address of the LAN gateway interface, and port number to use. Assuming your LAN address is 192.168.1.1 and you
- wish to run <span class="APPLICATION">Privoxy</span> on port 8118, this line should look like:</p>
- <table border="0" bgcolor="#E0E0E0" width="100%">
- <tr>
- <td>
- <pre class="SCREEN"> listen-address 192.168.1.1:8118</pre>
- </td>
- </tr>
- </table>
- <p>Save the file, and restart <span class="APPLICATION">Privoxy</span>. Configure all browsers on the network
- then to use this address and port number.</p>
- <p>Alternately, you can have <span class="APPLICATION">Privoxy</span> listen on all available interfaces:</p>
- <table border="0" bgcolor="#E0E0E0" width="100%">
- <tr>
- <td>
- <pre class="SCREEN"> listen-address :8118</pre>
- </td>
- </tr>
- </table>
- <p>And then use <span class="APPLICATION">Privoxy's</span> <a href="../user-manual/config.html#PERMIT-ACCESS"
- target="_top">permit-access</a> feature to limit connections. A firewall in this situation is recommended as
- well.</p>
- <p>The above steps should be the same for any TCP network, regardless of operating system.</p>
- <p>If you run <span class="APPLICATION">Privoxy</span> on a LAN with untrusted users, we recommend that you
- double-check the <a href="../user-manual/config.html#ACCESS-CONTROL" target="_top">access control and
- security</a> options!</p>
- </div>
- <div class="SECT2">
- <h3 class="SECT2"><a name="NOSEEUM" id="NOSEEUM">3.13. Instead of ads, now I get a checkerboard pattern. I don't
- want to see anything.</a></h3>
- <p>The replacement for blocked images can be controlled with the <a href=
- "../user-manual/actions-file.html#SET-IMAGE-BLOCKER" target="_top"><tt class="LITERAL">set-image-blocker</tt>
- action</a>. You have the choice of a checkerboard pattern, a transparent 1x1 GIF image (aka <span class=
- "QUOTE">"blank"</span>), or a redirect to a custom image of your choice. Note that this choice only has effect
- for images which are blocked as images, i.e. whose URLs match both a <tt class="LITERAL"><a href=
- "../user-manual/actions-file.html#HANDLE-AS-IMAGE" target="_top">handle-as-image</a></tt> <span class=
- "emphasis"><i class="EMPHASIS">and</i></span> <tt class="LITERAL"><a href=
- "../user-manual/actions-file.html#BLOCK" target="_top">block</a></tt> action.</p>
- <p>If you want to see nothing, then change the <a href="../user-manual/actions-file.html#SET-IMAGE-BLOCKER"
- target="_top"><tt class="LITERAL">set-image-blocker</tt> action</a> to <span class="QUOTE">"blank"</span>. This
- can be done by editing the <tt class="FILENAME">user.action</tt> file, or through the <a href=
- "http://config.privoxy.org/show-status" target="_top">web-based actions file editor</a>.</p>
- </div>
- <div class="SECT2">
- <h3 class="SECT2"><a name="WHYSEEUM" id="WHYSEEUM">3.14. Why would anybody want to see a checkerboard
- pattern?</a></h3>
- <p>Remember that <a href="general.html#WHATSANAD">telling which image is an ad and which isn't</a>, is an
- educated guess. While we hope that the standard configuration is rather smart, it will make occasional mistakes.
- The checkerboard image is visually decent, and it shows you where images have been blocked, which can be very
- helpful in case some navigation aid or otherwise innocent image was erroneously blocked. It is recommended for
- new users so they can <span class="QUOTE">"see"</span> what is happening. Some people might also enjoy seeing how
- many banners they <span class="emphasis"><i class="EMPHASIS">don't</i></span> have to see.</p>
- </div>
- <div class="SECT2">
- <h3 class="SECT2"><a name="BLOCKEDBYTEXT" id="BLOCKEDBYTEXT">3.15. I see some images being replaced with text
- instead of the checkerboard image. Why and how do I get rid of this?</a></h3>
- <p>This happens when the banners are not embedded in the HTML code of the page itself, but in separate HTML
- (sub)documents that are loaded into (i)frames or (i)layers, and these external HTML documents are blocked. Being
- non-images they get replaced by a substitute HTML page rather than a substitute image, which wouldn't work out
- technically, since the browser expects and accepts only HTML when it has requested an HTML document.</p>
- <p>The substitute page adapts to the available space and shows itself as a miniature two-liner if loaded into
- small frames, or full-blown with a large red "BLOCKED" banner if space allows.</p>
- <p>If you prefer the banners to be blocked by images, you must see to it that the HTML documents in which they
- are embedded are not blocked. Clicking the <span class="QUOTE">"See why"</span> link offered in the substitute
- page will show you which rule blocked the page. After changing the rule and un-blocking the HTML documents, the
- browser will try to load the actual banner images and the usual image blocking will (hopefully!) kick in.</p>
- </div>
- <div class="SECT2">
- <h3 class="SECT2"><a name="SRVANY" id="SRVANY">3.16. Can Privoxy run as a service on Win2K/NT/XP?</a></h3>
- <p>Yes. Version 3.0.5 introduces full <span class="APPLICATION">Windows</span> service functionality. See
- <a href="../user-manual/installation.html#installation-pack-win" target="_top">the <i class="CITETITLE">User
- Manual</i></a> for details on how to install and configure <span class="APPLICATION">Privoxy</span> as a
- service.</p>
- <p>Earlier 3.x versions could run as a system service using <b class="COMMAND">srvany.exe</b>. See the discussion
- at <a href="https://sourceforge.net/tracker/?func=detail&atid=361118&aid=485617&group_id=11118"
- target="_top">https://sourceforge.net/tracker/?func=detail&atid=361118&aid=485617&group_id=11118</a>,
- for details, and a sample configuration.</p>
- </div>
- <div class="SECT2">
- <h3 class="SECT2"><a name="OTHERPROXY" id="OTHERPROXY">3.17. How can I make Privoxy work with other
- proxies?</a></h3>
- <p>This can be done and is often useful to combine the benefits of <span class="APPLICATION">Privoxy</span> with
- those of a another proxy, for example to cache content. See the <a href="../user-manual/config.html#FORWARDING"
- target="_top">forwarding chapter</a> in the <a href="../user-manual/index.html" target="_top">User Manual</a>
- which describes how to do this. If you intend to use Privoxy with Tor, please also have a look at <a href=
- "misc.html#TOR">How do I use Privoxy together with Tor</a>.</p>
- </div>
- <div class="SECT2">
- <h3 class="SECT2"><a name="PORT-80" id="PORT-80">3.18. Can I just set Privoxy to use port 80 and thus avoid
- individual browser configuration?</a></h3>
- <p>No, its more complicated than that. This only works with special kinds of proxies known as <span class=
- "QUOTE">"intercepting"</span> proxies (<a href="configuration.html#INTERCEPTING">see below</a>).</p>
- </div>
- <div class="SECT2">
- <h3 class="SECT2"><a name="TRANSPARENT" id="TRANSPARENT">3.19. Can Privoxy run as a <span class=
- "QUOTE">"transparent"</span> proxy?</a></h3>
- <p>The whole idea of Privoxy is to modify client requests and server responses in all sorts of ways and therefore
- it's not a transparent proxy as described in <a href="http://tools.ietf.org/html/rfc2616" target="_top">RFC
- 2616</a>.</p>
- <p>However, some people say <span class="QUOTE">"transparent proxy"</span> when they mean <span class=
- "QUOTE">"intercepting proxy"</span>. If you are one of them, please read the <a href=
- "configuration.html#INTERCEPTING">next entry</a>.</p>
- </div>
- <div class="SECT2">
- <h3 class="SECT2"><a name="INTERCEPTING" id="INTERCEPTING">3.20. Can Privoxy run as a <span class=
- "QUOTE">"intercepting"</span> proxy?</a></h3>
- <p><span class="APPLICATION">Privoxy</span> can't intercept traffic itself, but it can handle requests that where
- intercepted and redirected with a packet filter (like <span class="APPLICATION">PF</span> or <span class=
- "APPLICATION">iptables</span>), as long as the <tt class="LITERAL">Host</tt> header is present.</p>
- <p>As the <tt class="LITERAL">Host</tt> header is required by HTTP/1.1 and as most web sites rely on it anyway,
- this limitation shouldn't be a problem.</p>
- <p>Please refer to your packet filter's documentation to learn how to intercept and redirect traffic into
- <span class="APPLICATION">Privoxy</span>. Afterward you just have to configure <span class=
- "APPLICATION">Privoxy</span> to <a href="../user-manual/config.html#ACCEPT-INTERCEPTED-REQUESTS" target=
- "_top">accept intercepted requests</a>.</p>
- </div>
- <div class="SECT2">
- <h3 class="SECT2"><a name="OUTLOOK" id="OUTLOOK">3.21. How can I configure Privoxy for use with Outlook?</a></h3>
- <p>Versions of <span class="APPLICATION">Outlook</span> prior to Office 2007, use <span class=
- "APPLICATION">Internet Explorer</span> components to both render HTML, and fetch any HTTP requests that may be
- embedded in an HTML email. So however you have <span class="APPLICATION">Privoxy</span> configured to work with
- IE, this configuration should automatically be shared, at least with older version of Internet Explorer.</p>
- <p>Starting with Office 2007, Microsoft is instead using the MS-Word rendering engine with Outlook. It is unknown
- whether this can be configured to use a proxy.</p>
- </div>
- <div class="SECT2">
- <h3 class="SECT2"><a name="OUTLOOK-MORE" id="OUTLOOK-MORE">3.22. How can I have separate rules just for HTML
- mail?</a></h3>
- <p>The short answer is, you can't. <span class="APPLICATION">Privoxy</span> has no way of knowing which
- particular application makes a request, so there is no way to distinguish between web pages and HTML mail.
- <span class="APPLICATION">Privoxy</span> just blindly proxies all requests. In the case of <span class=
- "APPLICATION">Outlook Express</span> (see above), OE uses IE anyway, and there is no way for <span class=
- "APPLICATION">Privoxy</span> to ever be able to distinguish between them (nor could any other proxy type
- application for that matter).</p>
- <p>For a good discussion of some of the issues involved (including privacy and security issues), see <a href=
- "https://sourceforge.net/tracker/?func=detail&atid=211118&aid=629518&group_id=11118" target=
- "_top">https://sourceforge.net/tracker/?func=detail&atid=211118&aid=629518&group_id=11118</a>.</p>
- </div>
- <div class="SECT2">
- <h3 class="SECT2"><a name="SNEAKY-COOKIES" id="SNEAKY-COOKIES">3.23. I sometimes notice cookies sneaking through.
- How?</a></h3>
- <p><a href="http://en.wikipedia.org/wiki/Browser_cookie" target="_top">Cookies</a> can be set in several ways.
- The classic method is via the <tt class="LITERAL">Set-Cookie</tt> HTTP header. This is straightforward, and an
- easy one to manipulate, such as the <span class="APPLICATION">Privoxy</span> concept of <a href=
- "../user-manual/actions-file.html#SESSION-COOKIES-ONLY" target="_top">session-cookies-only</a>. There is also the
- possibility of using <a href="http://en.wikipedia.org/wiki/Javascript" target="_top">Javascript</a> to set
- cookies (<span class="APPLICATION">Privoxy</span> calls these <tt class="LITERAL">content-cookies</tt>). This is
- trickier because the syntax can vary widely, and thus requires a certain amount of guesswork. It is not realistic
- to catch all of these short of disabling Javascript, which would break many sites. And lastly, if the cookies are
- embedded in a HTTPS/SSL secure session via Javascript, they are beyond <span class="APPLICATION">Privoxy's</span>
- reach.</p>
- <p>All in all, <span class="APPLICATION">Privoxy</span> can help manage cookies in general, can help minimize the
- loss of privacy posed by cookies, but can't realistically stop all cookies.</p>
- </div>
- <div class="SECT2">
- <h3 class="SECT2"><a name="EVIL-COOKIES" id="EVIL-COOKIES">3.24. Are all cookies bad? Why?</a></h3>
- <p>No, in fact there are many beneficial uses of <a href="http://en.wikipedia.org/wiki/Browser_cookie" target=
- "_top">cookies</a>. Cookies are just a method that browsers can use to store data between pages, or between
- browser sessions. Sometimes there is a good reason for this, and the user's life is a bit easier as a result. But
- there is a long history of some websites taking advantage of this layer of trust, and using the data they glean
- from you and your browsing habits for their own purposes, and maybe to your potential detriment. Such sites are
- using you and storing their data on your system. That is why the privacy conscious watch from whom those cookies
- come, and why they really <span class="emphasis"><i class="EMPHASIS">need</i></span> to be there.</p>
- <p>See the <a href="http://en.wikipedia.org/wiki/Browser_cookie" target="_top">Wikipedia cookie definition</a>
- for more.</p>
- </div>
- <div class="SECT2">
- <h3 class="SECT2"><a name="ALLOW-COOKIES" id="ALLOW-COOKIES">3.25. How can I allow permanent cookies for my
- trusted sites?</a></h3>
- <p>There are several actions that relate to cookies. The default behavior is to allow only <span class=
- "QUOTE">"session cookies"</span>, which means the cookies only last for the current browser session. This
- eliminates most kinds of abuse related to cookies. But there may be cases where you want cookies to last.</p>
- <p>To disable all cookie actions, so that cookies are allowed unrestricted, both in and out, for <tt class=
- "LITERAL">example.com</tt>:</p>
- <table border="0" bgcolor="#E0E0E0" width="100%">
- <tr>
- <td>
- <pre class="SCREEN">
- { -crunch-incoming-cookies -crunch-outgoing-cookies -session-cookies-only -filter{content-cookies} }
- .example.com</pre>
- </td>
- </tr>
- </table>
- <p>Place the above in <tt class="FILENAME">user.action</tt>. Note that some of these may be off by default
- anyway, so this might be redundant, but there is no harm being explicit in what you want to happen. <tt class=
- "FILENAME">user.action</tt> includes an alias for this situation, called <tt class=
- "LITERAL">allow-all-cookies</tt>.</p>
- </div>
- <div class="SECT2">
- <h3 class="SECT2"><a name="MULTIPLES" id="MULTIPLES">3.26. Can I have separate configurations for different
- users?</a></h3>
- <p>Each instance of <span class="APPLICATION">Privoxy</span> has its own configuration, including such attributes
- as the TCP port that it listens on. What you can do is run multiple instances of <span class=
- "APPLICATION">Privoxy</span>, each with a unique <a href="../user-manual/config.html#LISTEN-ADDRESS" target=
- "_top">listen-address</a> configuration setting, and configuration path, and then each of these can have their
- own configurations. Think of it as per-port configuration.</p>
- <p>Simple enough for a few users, but for large installations, consider having groups of users that might share
- like configurations.</p>
- </div>
- <div class="SECT2">
- <h3 class="SECT2"><a name="WHITELISTS" id="WHITELISTS">3.27. Can I set-up Privoxy as a whitelist of <span class=
- "QUOTE">"good"</span> sites?</a></h3>
- <p>Sure. There are a couple of things you can do for simple white-listing. Here's one real easy one:</p>
- <table border="0" bgcolor="#E0E0E0" width="100%">
- <tr>
- <td>
- <pre class="SCREEN"> ############################################################
+ mail.google.com</PRE
+></TD
+></TR
+></TABLE
+><P
+> Be sure to flush your browser's caches whenever making these kinds of
+ changes, just to make sure the changes <SPAN
+CLASS="QUOTE"
+>"take"</SPAN
+>.
+ </P
+><P
+> Make sure the domain, host and path are appropriate as well. Your browser can
+ tell you where you are specifically and you should use that information for
+ your configuration settings. Note that above it is not referenced as
+ <TT
+CLASS="LITERAL"
+>gmail.com</TT
+>, which is a valid domain name.
+ </P
+></DIV
+><DIV
+CLASS="SECT2"
+><H3
+CLASS="SECT2"
+><A
+NAME="CONFIGFILES"
+>3.9. What's the difference between the
+<SPAN
+CLASS="QUOTE"
+>"Cautious"</SPAN
+>, <SPAN
+CLASS="QUOTE"
+>"Medium"</SPAN
+> and <SPAN
+CLASS="QUOTE"
+>"Advanced"</SPAN
+> defaults?</A
+></H3
+><P
+> Configuring <SPAN
+CLASS="APPLICATION"
+>Privoxy</SPAN
+> is not entirely trivial. To
+ help you get started, we provide you with three different default action
+ <SPAN
+CLASS="QUOTE"
+>"profiles"</SPAN
+> in the web based actions file editor at <A
+HREF="http://config.privoxy.org/show-status"
+TARGET="_top"
+>http://config.privoxy.org/show-status</A
+>.
+ See the <A
+HREF="../user-manual/actions-file.html"
+TARGET="_top"
+><I
+CLASS="CITETITLE"
+>User
+ Manual</I
+></A
+> for a list of actions, and how the default
+ profiles are set.
+ </P
+><P
+> Where the defaults are likely to break some sites, exceptions for
+ known popular <SPAN
+CLASS="QUOTE"
+>"problem"</SPAN
+> sites are included, but in
+ general, the more aggressive your default settings are, the more exceptions
+ you will have to make later. New users are best to start off in
+ <SPAN
+CLASS="QUOTE"
+>"Cautious"</SPAN
+> setting. This is safest and will have the fewest
+ problems. See the <A
+HREF="../user-manual/index.html"
+TARGET="_top"
+><I
+CLASS="CITETITLE"
+>User Manual</I
+></A
+>
+ for a more detailed discussion.</P
+><P
+> It should be noted that the <SPAN
+CLASS="QUOTE"
+>"Advanced"</SPAN
+> profile (formerly known
+ as the <SPAN
+CLASS="QUOTE"
+>"Adventuresome"</SPAN
+> profile) is more
+ aggressive, and will make use of some of
+ <SPAN
+CLASS="APPLICATION"
+>Privoxy's</SPAN
+> advanced features. Use at your own risk!</P
+></DIV
+><DIV
+CLASS="SECT2"
+><H3
+CLASS="SECT2"
+><A
+NAME="BROWSECONFIG"
+>3.10. Why can I change the configuration
+with a browser? Does that not raise security issues?</A
+></H3
+><P
+> It may seem strange that regular users can edit the config files with their
+ browsers, although the whole <TT
+CLASS="FILENAME"
+>/etc/privoxy</TT
+> hierarchy
+ belongs to the user <SPAN
+CLASS="QUOTE"
+>"privoxy"</SPAN
+>, with only 644 permissions.
+ </P
+><P
+> When you use the browser-based editor, <SPAN
+CLASS="APPLICATION"
+>Privoxy</SPAN
+>
+ itself is writing to the config files. Because
+ <SPAN
+CLASS="APPLICATION"
+>Privoxy</SPAN
+> is running as the user <SPAN
+CLASS="QUOTE"
+>"privoxy"</SPAN
+>,
+ it can update its own config files.
+ </P
+><P
+> If you run <SPAN
+CLASS="APPLICATION"
+>Privoxy</SPAN
+> for multiple untrusted users (e.g. in
+ a LAN) or aren't entirely in control of your own browser, you will probably want
+ to make sure that the web-based editor and remote toggle features are
+ <SPAN
+CLASS="QUOTE"
+>"off"</SPAN
+> by setting <SPAN
+CLASS="QUOTE"
+>"<TT
+CLASS="LITERAL"
+><A
+HREF="../user-manual/config.html#ENABLE-EDIT-ACTIONS"
+TARGET="_top"
+>enable-edit-actions</A
+>
+ 0</TT
+>"</SPAN
+> and <SPAN
+CLASS="QUOTE"
+>"<TT
+CLASS="LITERAL"
+><A
+HREF="../user-manual/config.html#ENABLE-REMOTE-TOGGLE"
+TARGET="_top"
+>enable-remote-toggle</A
+>
+ 0</TT
+>"</SPAN
+> in the <A
+HREF="../user-manual/config.html"
+TARGET="_top"
+>main configuration file</A
+>.
+ </P
+><P
+> As of <SPAN
+CLASS="APPLICATION"
+>Privoxy</SPAN
+> 3.0.7 these options are disabled by default.
+ </P
+></DIV
+><DIV
+CLASS="SECT2"
+><H3
+CLASS="SECT2"
+><A
+NAME="FILTERFILE"
+>3.11. What is the <TT
+CLASS="FILENAME"
+>default.filter</TT
+> file? What is a <SPAN
+CLASS="QUOTE"
+>"filter"</SPAN
+>?</A
+></H3
+><P
+> The <A
+HREF="../user-manual/filter-file.html"
+TARGET="_top"
+><TT
+CLASS="FILENAME"
+>default.filter</TT
+></A
+>
+ file is where <SPAN
+CLASS="emphasis"
+><I
+CLASS="EMPHASIS"
+>filters</I
+></SPAN
+> as supplied by the developers are defined.
+ Filters are a special subset of actions that can be used to modify or
+ remove web page content or headers on the fly. Content filters can
+ be applied to <SPAN
+CLASS="emphasis"
+><I
+CLASS="EMPHASIS"
+>anything</I
+></SPAN
+> in the page source,
+ header filters can be applied to either server or client headers.
+ Regular expressions are used to accomplish this.</P
+><P
+> There are a number of pre-defined filters to deal with common annoyances. The
+ filters are only defined here, to invoke them, you need to use the
+ <A
+HREF="../user-manual/actions-file.html#FILTER"
+TARGET="_top"
+><TT
+CLASS="LITERAL"
+>filter</TT
+>
+ action</A
+> in one of the actions files. Content filtering is automatically
+ disabled for inappropriate MIME types, but if you know better than Privoxy
+ what should or should not be filtered you can filter any content you like.</P
+><P
+> Filters should
+ <SPAN
+CLASS="emphasis"
+><I
+CLASS="EMPHASIS"
+>not</I
+></SPAN
+> be confused with <A
+HREF="../user-manual/actions-file.html#BLOCK"
+TARGET="_top"
+><TT
+CLASS="LITERAL"
+>blocks</TT
+></A
+>, which
+ is a completely different action, and is more typically used to block ads and
+ unwanted sites.</P
+><P
+> If you are familiar with regular expressions, and HTML, you can look at
+ the provided <TT
+CLASS="FILENAME"
+>default.filter</TT
+> with a text editor and define
+ your own filters. This is potentially a very powerful feature, but
+ requires some expertise in both regular expressions and HTML/HTTP.
+ You should
+ place any modifications to the default filters, or any new ones you create
+ in a separate file, such as <TT
+CLASS="FILENAME"
+>user.filter</TT
+>, so they won't
+ be overwritten during upgrades.
+ The ability to define multiple filter files
+ in <TT
+CLASS="FILENAME"
+>config</TT
+> is a new feature as of v. 3.0.5.</P
+><P
+> There is no GUI editor option for this part of the configuration,
+ but you can disable/enable the various pre-defined filters of the included
+ <TT
+CLASS="FILENAME"
+>default.filter</TT
+> file with the <A
+HREF="http://config.privoxy.org/show-status"
+TARGET="_top"
+>web-based actions file editor</A
+>.
+ Note that the custom actions editor must be explicitly enabled in
+ the main config file (see <A
+HREF="../user-manual/config.html#ENABLE-EDIT-ACTIONS"
+TARGET="_top"
+>enable-edit-actions</A
+>).</P
+><P
+> If you intend to develop your own filters, you might want to have a look at
+ <A
+HREF="https://www.fabiankeil.de/sourcecode/pft/"
+TARGET="_top"
+>Privoxy-Filter-Test</A
+>.</P
+></DIV
+><DIV
+CLASS="SECT2"
+><H3
+CLASS="SECT2"
+><A
+NAME="LANCONFIG"
+>3.12. How can I set up Privoxy to act as a proxy for my
+ LAN?</A
+></H3
+><P
+> By default, <SPAN
+CLASS="APPLICATION"
+>Privoxy</SPAN
+> only responds to requests
+ from <TT
+CLASS="LITERAL"
+>127.0.0.1</TT
+> (localhost). To have it act as a server for
+ a network, this needs to be changed in the <A
+HREF="../user-manual/config.html"
+TARGET="_top"
+>main configuration file</A
+>. Look for
+ the <TT
+CLASS="LITERAL"
+><A
+HREF="../user-manual/config.html#LISTEN-ADDRESS"
+TARGET="_top"
+>listen-address</A
+></TT
+>
+ option, which may be commented out with a <SPAN
+CLASS="QUOTE"
+>"#"</SPAN
+> symbol. Make sure
+ it is uncommented, and assign it the address of the LAN gateway interface,
+ and port number to use. Assuming your LAN address is 192.168.1.1 and you
+ wish to run <SPAN
+CLASS="APPLICATION"
+>Privoxy</SPAN
+> on port 8118, this line
+ should look like:</P
+><TABLE
+BORDER="0"
+BGCOLOR="#E0E0E0"
+WIDTH="100%"
+><TR
+><TD
+><PRE
+CLASS="SCREEN"
+> listen-address 192.168.1.1:8118</PRE
+></TD
+></TR
+></TABLE
+><P
+> Save the file, and restart <SPAN
+CLASS="APPLICATION"
+>Privoxy</SPAN
+>. Configure
+ all browsers on the network then to use this address and port number.</P
+><P
+> Alternately, you can have <SPAN
+CLASS="APPLICATION"
+>Privoxy</SPAN
+> listen on
+ all available interfaces:</P
+><TABLE
+BORDER="0"
+BGCOLOR="#E0E0E0"
+WIDTH="100%"
+><TR
+><TD
+><PRE
+CLASS="SCREEN"
+> listen-address :8118</PRE
+></TD
+></TR
+></TABLE
+><P
+> And then use <SPAN
+CLASS="APPLICATION"
+>Privoxy's</SPAN
+>
+ <A
+HREF="../user-manual/config.html#PERMIT-ACCESS"
+TARGET="_top"
+>permit-access</A
+>
+ feature to limit connections. A firewall in this situation is recommended
+ as well.</P
+><P
+> The above steps should be the same for any TCP network, regardless of
+ operating system.</P
+><P
+> If you run <SPAN
+CLASS="APPLICATION"
+>Privoxy</SPAN
+> on a LAN with untrusted users,
+ we recommend that you double-check the <A
+HREF="../user-manual/config.html#ACCESS-CONTROL"
+TARGET="_top"
+>access control and security</A
+>
+ options!</P
+></DIV
+><DIV
+CLASS="SECT2"
+><H3
+CLASS="SECT2"
+><A
+NAME="NOSEEUM"
+>3.13. Instead of ads, now I get a checkerboard pattern. I don't want to see anything.</A
+></H3
+><P
+> The replacement for blocked images can be controlled with the <A
+HREF="../user-manual/actions-file.html#SET-IMAGE-BLOCKER"
+TARGET="_top"
+><TT
+CLASS="LITERAL"
+>set-image-blocker</TT
+>
+ action</A
+>. You have the choice of a checkerboard pattern, a transparent 1x1 GIF
+ image (aka <SPAN
+CLASS="QUOTE"
+>"blank"</SPAN
+>), or a redirect to a custom image of your choice.
+ Note that this choice only has effect for images which are blocked as images, i.e.
+ whose URLs match both a <TT
+CLASS="LITERAL"
+><A
+HREF="../user-manual/actions-file.html#HANDLE-AS-IMAGE"
+TARGET="_top"
+>handle-as-image</A
+></TT
+>
+ <SPAN
+CLASS="emphasis"
+><I
+CLASS="EMPHASIS"
+>and</I
+></SPAN
+> <TT
+CLASS="LITERAL"
+><A
+HREF="../user-manual/actions-file.html#BLOCK"
+TARGET="_top"
+>block</A
+></TT
+> action.</P
+><P
+> If you want to see nothing, then change the <A
+HREF="../user-manual/actions-file.html#SET-IMAGE-BLOCKER"
+TARGET="_top"
+><TT
+CLASS="LITERAL"
+>set-image-blocker</TT
+>
+ action</A
+> to <SPAN
+CLASS="QUOTE"
+>"blank"</SPAN
+>. This can be done by editing the
+ <TT
+CLASS="FILENAME"
+>user.action</TT
+> file, or through the <A
+HREF="http://config.privoxy.org/show-status"
+TARGET="_top"
+>web-based actions file editor</A
+>.</P
+></DIV
+><DIV
+CLASS="SECT2"
+><H3
+CLASS="SECT2"
+><A
+NAME="WHYSEEUM"
+>3.14. Why would anybody want to see a checkerboard pattern?</A
+></H3
+><P
+> Remember that <A
+HREF="general.html#WHATSANAD"
+>telling which image is an ad and which
+ isn't</A
+>, is an educated guess. While we hope that the standard configuration
+ is rather smart, it will make occasional mistakes. The checkerboard image is visually
+ decent, and it shows you where images have been blocked, which can be very
+ helpful in case some navigation aid or otherwise innocent image was
+ erroneously blocked. It is recommended for new users so they can
+ <SPAN
+CLASS="QUOTE"
+>"see"</SPAN
+> what is happening. Some people might also enjoy seeing how
+ many banners they <SPAN
+CLASS="emphasis"
+><I
+CLASS="EMPHASIS"
+>don't</I
+></SPAN
+> have to see.</P
+></DIV
+><DIV
+CLASS="SECT2"
+><H3
+CLASS="SECT2"
+><A
+NAME="BLOCKEDBYTEXT"
+>3.15. I see some images being replaced with text
+instead of the checkerboard image. Why and how do I get rid of this?</A
+></H3
+><P
+> This happens when the banners are not embedded in the HTML code of the
+ page itself, but in separate HTML (sub)documents that are loaded into (i)frames
+ or (i)layers, and these external HTML documents are blocked. Being non-images
+ they get replaced by a substitute HTML page rather than a substitute image,
+ which wouldn't work out technically, since the browser expects and accepts
+ only HTML when it has requested an HTML document.</P
+><P
+> The substitute page adapts to the available space and shows itself as a
+ miniature two-liner if loaded into small frames, or full-blown with a
+ large red "BLOCKED" banner if space allows.</P
+><P
+> If you prefer the banners to be blocked by images, you must see to it that
+ the HTML documents in which they are embedded are not blocked. Clicking
+ the <SPAN
+CLASS="QUOTE"
+>"See why"</SPAN
+> link offered in the substitute page will show
+ you which rule blocked the page. After changing the rule and un-blocking
+ the HTML documents, the browser will try to load the actual banner images
+ and the usual image blocking will (hopefully!) kick in.</P
+></DIV
+><DIV
+CLASS="SECT2"
+><H3
+CLASS="SECT2"
+><A
+NAME="SRVANY"
+>3.16. Can Privoxy run as a service
+on Win2K/NT/XP?</A
+></H3
+><P
+> Yes. Version 3.0.5 introduces full <SPAN
+CLASS="APPLICATION"
+>Windows</SPAN
+> service
+ functionality. See <A
+HREF="../user-manual/installation.html#installation-pack-win"
+TARGET="_top"
+> the <I
+CLASS="CITETITLE"
+>User Manual</I
+></A
+> for details on how to install and configure
+ <SPAN
+CLASS="APPLICATION"
+>Privoxy</SPAN
+> as a service.</P
+><P
+> Earlier 3.x versions could run as a system service using <B
+CLASS="COMMAND"
+>srvany.exe</B
+>.
+ See the discussion at <A
+HREF="https://sourceforge.net/tracker/?func=detail&atid=361118&aid=485617&group_id=11118"
+TARGET="_top"
+>https://sourceforge.net/tracker/?func=detail&atid=361118&aid=485617&group_id=11118</A
+>,
+ for details, and a sample configuration.</P
+></DIV
+><DIV
+CLASS="SECT2"
+><H3
+CLASS="SECT2"
+><A
+NAME="OTHERPROXY"
+>3.17. How can I make Privoxy work with other proxies?</A
+></H3
+><P
+> This can be done and is often useful to combine the benefits of
+ <SPAN
+CLASS="APPLICATION"
+>Privoxy</SPAN
+> with those of a another proxy,
+ for example to cache content.
+ See the <A
+HREF="../user-manual/config.html#FORWARDING"
+TARGET="_top"
+>forwarding chapter</A
+>
+ in the <A
+HREF="../user-manual/index.html"
+TARGET="_top"
+>User Manual</A
+> which
+ describes how to do this. If you intend to use Privoxy with Tor,
+ please also have a look at
+ <A
+HREF="misc.html#TOR"
+>How do I use Privoxy together with Tor</A
+>.</P
+></DIV
+><DIV
+CLASS="SECT2"
+><H3
+CLASS="SECT2"
+><A
+NAME="PORT-80"
+>3.18. Can I just set Privoxy to use port 80
+and thus avoid individual browser configuration?</A
+></H3
+><P
+> No, its more complicated than that. This only works with special kinds
+ of proxies known as <SPAN
+CLASS="QUOTE"
+>"intercepting"</SPAN
+> proxies
+ (<A
+HREF="configuration.html#INTERCEPTING"
+>see below</A
+>).</P
+></DIV
+><DIV
+CLASS="SECT2"
+><H3
+CLASS="SECT2"
+><A
+NAME="TRANSPARENT"
+>3.19. Can Privoxy run as a <SPAN
+CLASS="QUOTE"
+>"transparent"</SPAN
+> proxy?</A
+></H3
+><P
+> The whole idea of Privoxy is to modify client requests
+ and server responses in all sorts of ways and therefore
+ it's not a transparent proxy as described in
+ <A
+HREF="http://tools.ietf.org/html/rfc2616"
+TARGET="_top"
+>RFC 2616</A
+>.</P
+><P
+> However, some people say <SPAN
+CLASS="QUOTE"
+>"transparent proxy"</SPAN
+> when they
+ mean <SPAN
+CLASS="QUOTE"
+>"intercepting proxy"</SPAN
+>. If you are one of them,
+ please read the <A
+HREF="configuration.html#INTERCEPTING"
+>next entry</A
+>.</P
+></DIV
+><DIV
+CLASS="SECT2"
+><H3
+CLASS="SECT2"
+><A
+NAME="INTERCEPTING"
+>3.20. Can Privoxy run as a <SPAN
+CLASS="QUOTE"
+>"intercepting"</SPAN
+> proxy?</A
+></H3
+><P
+> <SPAN
+CLASS="APPLICATION"
+>Privoxy</SPAN
+> can't intercept traffic itself,
+ but it can handle requests that where intercepted and redirected
+ with a packet filter (like <SPAN
+CLASS="APPLICATION"
+>PF</SPAN
+> or
+ <SPAN
+CLASS="APPLICATION"
+>iptables</SPAN
+>), as long as the <TT
+CLASS="LITERAL"
+>Host</TT
+>
+ header is present.
+ </P
+><P
+> As the <TT
+CLASS="LITERAL"
+>Host</TT
+> header is required by HTTP/1.1 and as most
+ web sites rely on it anyway, this limitation shouldn't be a problem.</P
+><P
+> Please refer to your packet filter's documentation to learn how to
+ intercept and redirect traffic into <SPAN
+CLASS="APPLICATION"
+>Privoxy</SPAN
+>.
+ Afterward you just have to configure <SPAN
+CLASS="APPLICATION"
+>Privoxy</SPAN
+> to
+ <A
+HREF="../user-manual/config.html#ACCEPT-INTERCEPTED-REQUESTS"
+TARGET="_top"
+>accept
+ intercepted requests</A
+>.</P
+></DIV
+><DIV
+CLASS="SECT2"
+><H3
+CLASS="SECT2"
+><A
+NAME="OUTLOOK"
+>3.21. How can I configure Privoxy for use with Outlook?</A
+></H3
+><P
+> Versions of <SPAN
+CLASS="APPLICATION"
+>Outlook</SPAN
+> prior to Office 2007, use
+ <SPAN
+CLASS="APPLICATION"
+>Internet Explorer</SPAN
+> components to both render HTML,
+ and fetch any HTTP requests that may be embedded in an HTML email. So however
+ you have <SPAN
+CLASS="APPLICATION"
+>Privoxy</SPAN
+> configured to work with IE, this
+ configuration should automatically be shared, at least with older version of
+ Internet Explorer.</P
+><P
+> Starting with Office 2007, Microsoft is instead using the MS-Word rendering
+ engine with Outlook. It is unknown whether this can be configured to use a
+ proxy.
+ </P
+></DIV
+><DIV
+CLASS="SECT2"
+><H3
+CLASS="SECT2"
+><A
+NAME="OUTLOOK-MORE"
+>3.22. How can I have separate rules just for HTML mail?</A
+></H3
+><P
+> The short answer is, you can't. <SPAN
+CLASS="APPLICATION"
+>Privoxy</SPAN
+> has no way
+ of knowing which particular application makes a request, so there is no way to
+ distinguish between web pages and HTML mail.
+ <SPAN
+CLASS="APPLICATION"
+>Privoxy</SPAN
+> just blindly proxies all requests. In the
+ case of <SPAN
+CLASS="APPLICATION"
+>Outlook Express</SPAN
+> (see above), OE uses
+ IE anyway, and there is no way for <SPAN
+CLASS="APPLICATION"
+>Privoxy</SPAN
+> to ever
+ be able to distinguish between them (nor could any other proxy type application for
+ that matter).</P
+><P
+> For a good discussion of some of the issues involved (including privacy and
+ security issues), see
+ <A
+HREF="https://sourceforge.net/tracker/?func=detail&atid=211118&aid=629518&group_id=11118"
+TARGET="_top"
+>https://sourceforge.net/tracker/?func=detail&atid=211118&aid=629518&group_id=11118</A
+>.</P
+></DIV
+><DIV
+CLASS="SECT2"
+><H3
+CLASS="SECT2"
+><A
+NAME="SNEAKY-COOKIES"
+>3.23. I sometimes notice cookies sneaking through. How?</A
+></H3
+><P
+> <A
+HREF="http://en.wikipedia.org/wiki/Browser_cookie"
+TARGET="_top"
+>Cookies</A
+> can be
+ set in several ways. The classic method is via the
+ <TT
+CLASS="LITERAL"
+>Set-Cookie</TT
+> HTTP header. This is straightforward, and an
+ easy one to manipulate, such as the <SPAN
+CLASS="APPLICATION"
+>Privoxy</SPAN
+> concept of
+ <A
+HREF="../user-manual/actions-file.html#SESSION-COOKIES-ONLY"
+TARGET="_top"
+>session-cookies-only</A
+>.
+ There is also the possibility of using
+ <A
+HREF="http://en.wikipedia.org/wiki/Javascript"
+TARGET="_top"
+>Javascript</A
+> to
+ set cookies (<SPAN
+CLASS="APPLICATION"
+>Privoxy</SPAN
+> calls these <TT
+CLASS="LITERAL"
+>content-cookies</TT
+>). This
+ is trickier because the syntax can vary widely, and thus requires a certain
+ amount of guesswork. It is not realistic to catch all of these short of
+ disabling Javascript, which would break many sites. And lastly, if the
+ cookies are embedded in a HTTPS/SSL secure session via Javascript, they are beyond
+ <SPAN
+CLASS="APPLICATION"
+>Privoxy's</SPAN
+> reach.</P
+><P
+> All in all, <SPAN
+CLASS="APPLICATION"
+>Privoxy</SPAN
+> can help manage cookies in general, can help minimize
+ the loss of privacy posed by cookies, but can't realistically stop all
+ cookies.</P
+></DIV
+><DIV
+CLASS="SECT2"
+><H3
+CLASS="SECT2"
+><A
+NAME="EVIL-COOKIES"
+>3.24. Are all cookies bad? Why?</A
+></H3
+><P
+> No, in fact there are many beneficial uses of
+ <A
+HREF="http://en.wikipedia.org/wiki/Browser_cookie"
+TARGET="_top"
+>cookies</A
+>. Cookies are just a
+ method that browsers can use to store data between pages, or between browser
+ sessions. Sometimes there is a good reason for this, and the user's life is a
+ bit easier as a result. But there is a long history of some websites taking
+ advantage of this layer of trust, and using the data they glean from you and
+ your browsing habits for their own purposes, and maybe to your potential
+ detriment. Such sites are using you and storing their data on your system.
+ That is why the privacy conscious watch from whom those cookies come, and why
+ they really <SPAN
+CLASS="emphasis"
+><I
+CLASS="EMPHASIS"
+>need</I
+></SPAN
+> to be there.</P
+><P
+> See the
+ <A
+HREF="http://en.wikipedia.org/wiki/Browser_cookie"
+TARGET="_top"
+>Wikipedia cookie
+ definition</A
+> for more.</P
+></DIV
+><DIV
+CLASS="SECT2"
+><H3
+CLASS="SECT2"
+><A
+NAME="ALLOW-COOKIES"
+>3.25. How can I allow permanent cookies for my trusted sites?</A
+></H3
+><P
+> There are several actions that relate to cookies. The default behavior is to
+ allow only <SPAN
+CLASS="QUOTE"
+>"session cookies"</SPAN
+>, which means the cookies only last
+ for the current browser session. This eliminates most kinds of abuse related
+ to cookies. But there may be cases where you want cookies to last.</P
+><P
+> To disable all cookie actions, so that cookies are allowed unrestricted,
+ both in and out, for <TT
+CLASS="LITERAL"
+>example.com</TT
+>:</P
+><TABLE
+BORDER="0"
+BGCOLOR="#E0E0E0"
+WIDTH="100%"
+><TR
+><TD
+><PRE
+CLASS="SCREEN"
+> { -crunch-incoming-cookies -crunch-outgoing-cookies -session-cookies-only -filter{content-cookies} }
+ .example.com</PRE
+></TD
+></TR
+></TABLE
+><P
+> Place the above in <TT
+CLASS="FILENAME"
+>user.action</TT
+>. Note that some of these may
+ be off by default anyway, so this might be redundant, but there is no harm
+ being explicit in what you want to happen. <TT
+CLASS="FILENAME"
+>user.action</TT
+>
+ includes an alias for this situation, called
+ <TT
+CLASS="LITERAL"
+>allow-all-cookies</TT
+>.</P
+></DIV
+><DIV
+CLASS="SECT2"
+><H3
+CLASS="SECT2"
+><A
+NAME="MULTIPLES"
+>3.26. Can I have separate configurations for different users?</A
+></H3
+><P
+> Each instance of <SPAN
+CLASS="APPLICATION"
+>Privoxy</SPAN
+> has its own
+ configuration, including such attributes as the TCP port that it listens on.
+ What you can do is run multiple instances of <SPAN
+CLASS="APPLICATION"
+>Privoxy</SPAN
+>, each with
+ a unique
+ <A
+HREF="../user-manual/config.html#LISTEN-ADDRESS"
+TARGET="_top"
+>listen-address</A
+>
+ configuration setting, and configuration path, and then
+ each of these can have their own configurations. Think of it as per-port
+ configuration.</P
+><P
+> Simple enough for a few users, but for large installations, consider having
+ groups of users that might share like configurations.</P
+></DIV
+><DIV
+CLASS="SECT2"
+><H3
+CLASS="SECT2"
+><A
+NAME="WHITELISTS"
+>3.27. Can I set-up Privoxy as a whitelist of
+<SPAN
+CLASS="QUOTE"
+>"good"</SPAN
+> sites?</A
+></H3
+><P
+> Sure. There are a couple of things you can do for simple white-listing.
+ Here's one real easy one:</P
+><TABLE
+BORDER="0"
+BGCOLOR="#E0E0E0"
+WIDTH="100%"
+><TR
+><TD
+><PRE
+CLASS="SCREEN"
+> ############################################################
# Blacklist
############################################################
- { <a href="../user-manual/actions-file.html#BLOCK" target="_top">+block</a> }
+ { <A
+HREF="../user-manual/actions-file.html#BLOCK"
+TARGET="_top"
+>+block</A
+> }
/ # Block *all* URLs
############################################################
# Whitelist
############################################################
- { <a href="../user-manual/actions-file.html#BLOCK" target="_top">-block</a> }
+ { <A
+HREF="../user-manual/actions-file.html#BLOCK"
+TARGET="_top"
+>-block</A
+> }
kids.example.com
toys.example.com
- games.example.com</pre>
- </td>
- </tr>
- </table>
- <p>This allows access to only those three sites by first blocking all URLs, and then subsequently allowing three
- specific exceptions.</p>
- <p>Another approach is <span class="APPLICATION">Privoxy's</span> <tt class="LITERAL">trustfile</tt> concept,
- which incorporates the notion of <span class="QUOTE">"trusted referrers"</span>. See the <a href=
- "../user-manual/config.html#TRUSTFILE" target="_top">Trust documentation</a> for details.</p>
- <p>These are fairly simple approaches and are not completely foolproof. There are various other configuration
- options that should be disabled (described elsewhere here and in <a href="../user-manual/" target="_top">the User
- Manual</a>) so that users can't modify their own configuration and easily circumvent the whitelist.</p>
- </div>
- <div class="SECT2">
- <h3 class="SECT2"><a name="NO-ADBLOCK" id="NO-ADBLOCK">3.28. How can I turn off ad-blocking?</a></h3>
- <p>Ad blocking is achieved through a complex application of various <span class="APPLICATION">Privoxy</span>
- <a href="../user-manual/actions-file.html" target="_top">actions</a>. These actions are deployed against simple
- images, banners, flash animations, text pages, JavaScript, pop-ups and pop-unders, etc., so its not as simple as
- just turning one or two actions off. The various actions that make up <span class="APPLICATION">Privoxy</span> ad
- blocking are hard-coded into the default configuration files. It has been assumed that everyone using
- <span class="APPLICATION">Privoxy</span> is interested in this particular feature.</p>
- <p>If you want to do without this, there are several approaches you can take: You can manually undo the many
- block rules in <tt class="FILENAME">default.action</tt>. Or even easier, just create your own <tt class=
- "FILENAME">default.action</tt> file from scratch without the many ad blocking rules, and corresponding
- exceptions. Or lastly, if you are not concerned about the additional blocks that are done for privacy reasons,
- you can very easily over-ride <span class="emphasis"><i class="EMPHASIS">all</i></span> blocking with the
- following very simple rule in your <tt class="FILENAME">user.action</tt>:</p>
- <table border="0" bgcolor="#E0E0E0" width="100%">
- <tr>
- <td>
- <pre class="SCREEN"> # Unblock everybody, everywhere
- { <a href="../user-manual/actions-file.html#BLOCK" target="_top">-block</a> }
- / # UN-Block *all* URLs</pre>
- </td>
- </tr>
- </table>
- <p>Or even a more comprehensive reversing of various ad related actions:</p>
- <table border="0" bgcolor="#E0E0E0" width="100%">
- <tr>
- <td>
- <pre class="SCREEN"> # Unblock everybody, everywhere, and turn off appropriate filtering, etc
- { <a href="../user-manual/actions-file.html#BLOCK" target="_top">-block</a> \
- <a href="../user-manual/actions-file.html#FILTER-BANNERS-BY-SIZE" target="_top">-filter{banners-by-size}</a> \
- <a href="../user-manual/actions-file.html#FILTER-BANNERS-BY-LINK" target="_top">-filter{banners-by-link}</a> \
- <tt class="LITERAL">allow-popups</tt> \
+ games.example.com</PRE
+></TD
+></TR
+></TABLE
+><P
+> This allows access to only those three sites by first blocking all URLs, and
+ then subsequently allowing three specific exceptions.</P
+><P
+> Another approach is <SPAN
+CLASS="APPLICATION"
+>Privoxy's</SPAN
+>
+ <TT
+CLASS="LITERAL"
+>trustfile</TT
+> concept, which incorporates the notion of
+ <SPAN
+CLASS="QUOTE"
+>"trusted referrers"</SPAN
+>. See the <A
+HREF="../user-manual/config.html#TRUSTFILE"
+TARGET="_top"
+>Trust documentation</A
+>
+ for details.</P
+><P
+> These are fairly simple approaches and are not completely foolproof. There
+ are various other configuration options that should be disabled (described
+ elsewhere here and in <A
+HREF="../user-manual/"
+TARGET="_top"
+>the User Manual</A
+>)
+ so that users can't modify their own configuration and easily circumvent the
+ whitelist.</P
+></DIV
+><DIV
+CLASS="SECT2"
+><H3
+CLASS="SECT2"
+><A
+NAME="NO-ADBLOCK"
+>3.28. How can I turn off ad-blocking?</A
+></H3
+><P
+> Ad blocking is achieved through a complex application of various <SPAN
+CLASS="APPLICATION"
+>Privoxy</SPAN
+>
+ <A
+HREF="../user-manual/actions-file.html"
+TARGET="_top"
+>actions</A
+>. These
+ actions are deployed against simple images, banners, flash animations,
+ text pages, JavaScript, pop-ups and pop-unders, etc., so its not as simple as
+ just turning one or two actions off. The various actions that make up
+ <SPAN
+CLASS="APPLICATION"
+>Privoxy</SPAN
+> ad blocking are hard-coded into the default configuration files. It
+ has been assumed that everyone using <SPAN
+CLASS="APPLICATION"
+>Privoxy</SPAN
+> is interested in this
+ particular feature.
+ </P
+><P
+> If you want to do without this, there are several approaches you can take:
+ You can manually undo the many block rules in
+ <TT
+CLASS="FILENAME"
+>default.action</TT
+>. Or even easier, just create your own
+ <TT
+CLASS="FILENAME"
+>default.action</TT
+> file from scratch without the many ad
+ blocking rules, and corresponding exceptions. Or lastly, if you are not
+ concerned about the additional blocks that are done for privacy reasons, you
+ can very easily over-ride <SPAN
+CLASS="emphasis"
+><I
+CLASS="EMPHASIS"
+>all</I
+></SPAN
+> blocking with the
+ following very simple rule in your <TT
+CLASS="FILENAME"
+>user.action</TT
+>:
+ </P
+><TABLE
+BORDER="0"
+BGCOLOR="#E0E0E0"
+WIDTH="100%"
+><TR
+><TD
+><PRE
+CLASS="SCREEN"
+> # Unblock everybody, everywhere
+ { <A
+HREF="../user-manual/actions-file.html#BLOCK"
+TARGET="_top"
+>-block</A
+> }
+ / # UN-Block *all* URLs</PRE
+></TD
+></TR
+></TABLE
+><P
+> Or even a more comprehensive reversing of various ad related actions:</P
+><TABLE
+BORDER="0"
+BGCOLOR="#E0E0E0"
+WIDTH="100%"
+><TR
+><TD
+><PRE
+CLASS="SCREEN"
+> # Unblock everybody, everywhere, and turn off appropriate filtering, etc
+ { <A
+HREF="../user-manual/actions-file.html#BLOCK"
+TARGET="_top"
+>-block</A
+> \
+ <A
+HREF="../user-manual/actions-file.html#FILTER-BANNERS-BY-SIZE"
+TARGET="_top"
+>-filter{banners-by-size}</A
+> \
+ <A
+HREF="../user-manual/actions-file.html#FILTER-BANNERS-BY-LINK"
+TARGET="_top"
+>-filter{banners-by-link}</A
+> \
+ <TT
+CLASS="LITERAL"
+>allow-popups</TT
+> \
}
- / # UN-Block *all* URLs and allow ads</pre>
- </td>
- </tr>
- </table>
- <p>This last <span class="QUOTE">"action"</span> in this compound statement, <tt class=
- "LITERAL">allow-popups</tt>, is an <a href="../user-manual/actions-file.html#ALIASES" target="_top">alias</a>
- that disables various pop-up blocking features.</p>
- </div>
- <div class="SECT2">
- <h3 class="SECT2"><a name="TEMPLATES" id="TEMPLATES">3.29. How can I have custom template pages, like the
- <span class="emphasis"><i class="EMPHASIS">BLOCKED</i></span> page?</a></h3>
- <p><span class="APPLICATION">Privoxy</span> <span class="QUOTE">"templates"</span> are specialized text files
- utilized by <span class="APPLICATION">Privoxy</span> for various purposes and can easily be modified using any
- text editor. All the template pages are installed in a sub-directory appropriately named: <tt class=
- "FILENAME">templates</tt>. Knowing something about HTML syntax will of course be helpful.</p>
- <p>Be forewarned that the default templates are subject to being overwritten during upgrades. You can, however,
- create completely new templates, place them in another directory and specify the alternate path in the main
- <tt class="FILENAME">config</tt>. For details, have a look at the <a href="../user-manual/config.html#templdir"
- target="_top">templdir</a> option.</p>
- </div>
- <div class="SECT2">
- <h3 class="SECT2"><a name="BLOCKALL" id="BLOCKALL">3.30. How can I remove the <span class="QUOTE">"Go There
- Anyway"</span> link from the <span class="emphasis"><i class="EMPHASIS">BLOCKED</i></span> page?</a></h3>
- <p>There is more than one way to do it (although Perl is not involved).</p>
- <p>Editing the BLOCKED template page (see above) may dissuade some users, but this method is easily circumvented.
- Where you need this level of control, you might want to build <span class="APPLICATION">Privoxy</span> from
- source, and disable various features that are available as compile-time options. You should <b class=
- "COMMAND">configure</b> the sources as follows:</p>
- <table border="0" bgcolor="#E0E0E0" width="100%">
- <tr>
- <td>
- <pre class="SCREEN"> ./configure --disable-toggle --disable-editor --disable-force</pre>
- </td>
- </tr>
- </table>
- <p>This will create an executable with hard-coded security features so that <span class=
- "APPLICATION">Privoxy</span> does not allow easy bypassing of blocked sites, or changing the current
- configuration via any connected user's web browser.</p>
- <p>Finally, all of these features can also be toggled on/off via options in <span class=
- "APPLICATION">Privoxy's</span> main <a href="../user-manual/config.html#ACCESS-CONTROL" target="_top">config</a>
- file which means you don't have to recompile anything.</p>
- </div>
- </div>
- <div class="NAVFOOTER">
- <hr align="left" width="100%">
- <table summary="Footer navigation table" width="100%" border="0" cellpadding="0" cellspacing="0">
- <tr>
- <td width="33%" align="left" valign="top"><a href="installation.html" accesskey="P">Prev</a></td>
- <td width="34%" align="center" valign="top"><a href="index.html" accesskey="H">Home</a></td>
- <td width="33%" align="right" valign="top"><a href="misc.html" accesskey="N">Next</a></td>
- </tr>
- <tr>
- <td width="33%" align="left" valign="top">Installation</td>
- <td width="34%" align="center" valign="top"> </td>
- <td width="33%" align="right" valign="top">Miscellaneous</td>
- </tr>
- </table>
- </div>
-</body>
-</html>
+ / # UN-Block *all* URLs and allow ads</PRE
+></TD
+></TR
+></TABLE
+><P
+> This last <SPAN
+CLASS="QUOTE"
+>"action"</SPAN
+> in this compound statement,
+ <TT
+CLASS="LITERAL"
+>allow-popups</TT
+>, is an <A
+HREF="../user-manual/actions-file.html#ALIASES"
+TARGET="_top"
+>alias</A
+> that disables
+ various pop-up blocking features.</P
+></DIV
+><DIV
+CLASS="SECT2"
+><H3
+CLASS="SECT2"
+><A
+NAME="TEMPLATES"
+>3.29. How can I have custom template pages, like the
+<SPAN
+CLASS="emphasis"
+><I
+CLASS="EMPHASIS"
+>BLOCKED</I
+></SPAN
+> page?</A
+></H3
+><P
+> <SPAN
+CLASS="APPLICATION"
+>Privoxy</SPAN
+> <SPAN
+CLASS="QUOTE"
+>"templates"</SPAN
+> are specialized text files utilized by
+ <SPAN
+CLASS="APPLICATION"
+>Privoxy</SPAN
+> for various purposes and can easily be modified using any text
+ editor. All the template pages are installed in a sub-directory appropriately
+ named: <TT
+CLASS="FILENAME"
+>templates</TT
+>. Knowing something about HTML syntax
+ will of course be helpful.</P
+><P
+> Be forewarned that the default templates are subject to being overwritten
+ during upgrades. You can, however, create completely new templates,
+ place them in another directory and specify the alternate path in the main
+ <TT
+CLASS="FILENAME"
+>config</TT
+>. For details, have a look at the <A
+HREF="../user-manual/config.html#templdir"
+TARGET="_top"
+>templdir</A
+> option.</P
+></DIV
+><DIV
+CLASS="SECT2"
+><H3
+CLASS="SECT2"
+><A
+NAME="BLOCKALL"
+>3.30. How can I remove the <SPAN
+CLASS="QUOTE"
+>"Go There Anyway"</SPAN
+> link from
+the <SPAN
+CLASS="emphasis"
+><I
+CLASS="EMPHASIS"
+>BLOCKED</I
+></SPAN
+> page?</A
+></H3
+><P
+> There is more than one way to do it (although Perl is not involved).</P
+><P
+> Editing the BLOCKED template page (see above) may dissuade some users, but
+ this method is easily circumvented. Where you need this level of control, you
+ might want to build <SPAN
+CLASS="APPLICATION"
+>Privoxy</SPAN
+> from source, and disable various features that are
+ available as compile-time options. You should
+ <B
+CLASS="COMMAND"
+>configure</B
+> the sources as follows:</P
+><TABLE
+BORDER="0"
+BGCOLOR="#E0E0E0"
+WIDTH="100%"
+><TR
+><TD
+><PRE
+CLASS="SCREEN"
+> ./configure --disable-toggle --disable-editor --disable-force</PRE
+></TD
+></TR
+></TABLE
+><P
+> This will create an executable with hard-coded security features so that
+ <SPAN
+CLASS="APPLICATION"
+>Privoxy</SPAN
+> does not allow easy bypassing of blocked sites, or changing the
+ current configuration via any connected user's web browser.</P
+><P
+> Finally, all of these features can also be toggled on/off via options in
+ <SPAN
+CLASS="APPLICATION"
+>Privoxy's</SPAN
+> main <A
+HREF="../user-manual/config.html#ACCESS-CONTROL"
+TARGET="_top"
+>config</A
+> file which
+ means you don't have to recompile anything.</P
+></DIV
+></DIV
+><DIV
+CLASS="NAVFOOTER"
+><HR
+ALIGN="LEFT"
+WIDTH="100%"><TABLE
+SUMMARY="Footer navigation table"
+WIDTH="100%"
+BORDER="0"
+CELLPADDING="0"
+CELLSPACING="0"
+><TR
+><TD
+WIDTH="33%"
+ALIGN="left"
+VALIGN="top"
+><A
+HREF="installation.html"
+ACCESSKEY="P"
+>Prev</A
+></TD
+><TD
+WIDTH="34%"
+ALIGN="center"
+VALIGN="top"
+><A
+HREF="index.html"
+ACCESSKEY="H"
+>Home</A
+></TD
+><TD
+WIDTH="33%"
+ALIGN="right"
+VALIGN="top"
+><A
+HREF="misc.html"
+ACCESSKEY="N"
+>Next</A
+></TD
+></TR
+><TR
+><TD
+WIDTH="33%"
+ALIGN="left"
+VALIGN="top"
+>Installation</TD
+><TD
+WIDTH="34%"
+ALIGN="center"
+VALIGN="top"
+> </TD
+><TD
+WIDTH="33%"
+ALIGN="right"
+VALIGN="top"
+>Miscellaneous</TD
+></TR
+></TABLE
+></DIV
+></BODY
+></HTML
+>
\ No newline at end of file
projects / privoxy.git / blobdiff