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-CONTENT="Modular DocBook HTML Stylesheet Version 1.76b+
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+CONTENT="Modular DocBook HTML Stylesheet Version 1.79"><LINK
REL="HOME"
TITLE="Privoxy Frequently Asked Questions"
HREF="index.html"><LINK
HREF="installation.html"><LINK
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><BODY
CLASS="SECT1"
BGCOLOR="#EEEEEE"
CLASS="SECT1"
><A
NAME="GENERAL"
-></A
->1. General Information</H1
+>1. General Information</A
+></H1
><DIV
CLASS="SECT2"
><H3
CLASS="SECT2"
><A
-NAME="WHO_USES"
-></A
->1.1. Who should use Privoxy?</H3
-><P
-> Anyone that is interested in security, privacy, or in
- finer-grained control over their web and Internet experience.
- Everyone is encouraged to try <SPAN
+NAME="WHO-USES"
+>1.1. Who should give <SPAN
CLASS="APPLICATION"
>Privoxy</SPAN
->.
+> a try?</A
+></H3
+><P
+> Anyone who is interested in security, privacy, or in
+ finer-grained control over their web and Internet experience.
</P
></DIV
><DIV
CLASS="SECT2"
><A
NAME="BESTCHOICE"
-></A
>1.2. Is Privoxy the best choice for
-me?</H3
+me?</A
+></H3
><P
> <SPAN
CLASS="APPLICATION"
>Privoxy</SPAN
> is certainly a good choice, especially for those who want more
- control and security. Those that have the ability to fine-tune their installation
- will benefit the most. One of <SPAN
+ control and security. Those with the willingness to read the documentation
+ and the ability to fine-tune their installation will benefit the most.
+ </P
+><P
+> One of <SPAN
CLASS="APPLICATION"
>Privoxy's</SPAN
>
- strength's is that it is highly configurable giving you the ability to
+ strengths is that it is highly configurable giving you the ability to
completely personalize your installation. Being familiar with, or at least
having an interest in learning about <A
HREF="http://en.wikipedia.org/wiki/Http"
HREF="http://en.wikipedia.org/wiki/Html"
TARGET="_top"
>HTML</A
->,
- <A
-HREF="http://en.wikipedia.org/wiki/Internet_Protocol"
-TARGET="_top"
->IP (Internet
- Protocol)</A
>, and
<A
HREF="http://en.wikipedia.org/wiki/Regular_expressions"
TARGET="_top"
>text editor</A
>
- to edit configuration files.
+ to edit configuration files. Also note that the web-based action editor
+ doesn't use authentication and should only be enabled in environments
+ where all clients with access to <SPAN
+CLASS="APPLICATION"
+>Privoxy</SPAN
+> listening port can be trusted.
</P
></DIV
><DIV
CLASS="SECT2"
><A
NAME="PROXYMORON"
-></A
>1.3. What is a <SPAN
CLASS="QUOTE"
>"proxy"</SPAN
>? How does
-Privoxy work?</H3
+Privoxy work?</A
+></H3
><P
> A <A
HREF="http://en.wikipedia.org/wiki/Proxy_server"
it is in a perfect position to filter outbound personal information that your
browser is leaking, as well as inbound junk. It uses a variety of techniques to do
this, all of which are under your complete control via the various configuration
- files and options.
+ files and options. Being a proxy also makes it easier to share
+ configurations among multiple browsers and/or users.
</P
></DIV
><DIV
><H3
CLASS="SECT2"
><A
+NAME="OTHERSTUFF"
+>1.4. Does Privoxy do anything more than ad blocking?</A
+></H3
+><P
+>
+ Yes, ad blocking is but one possible use. There are many, many ways <SPAN
+CLASS="APPLICATION"
+>Privoxy</SPAN
+>
+ can be used to sanitize and customize web browsing. </P
+></DIV
+><DIV
+CLASS="SECT2"
+><H3
+CLASS="SECT2"
+><A
NAME="NEWJB"
-></A
->1.4. What is this new version of
+>1.5. What is this new version of
<SPAN
CLASS="QUOTE"
>"Junkbuster"</SPAN
->?</H3
+>?</A
+></H3
><P
> A long time ago, there was the
<A
><H3
CLASS="SECT2"
><A
-NAME="AEN74"
-></A
->1.5. Why <SPAN
+NAME="AEN79"
+>1.6. Why <SPAN
CLASS="QUOTE"
>"Privoxy"</SPAN
>? Why change the name from
-Junkbuster at all?</H3
+Junkbuster at all?</A
+></H3
><P
-> <A
+> Though outdated, <A
HREF="http://junkbusters.com/"
TARGET="_top"
>Junkbusters Corporation</A
>-derived software under the same name
led to confusion.</P
><P
-> There are also potential legal complications from the continued use of the
+> There are also potential legal complications from our use of the
<SPAN
CLASS="APPLICATION"
>Junkbuster</SPAN
CLASS="SECT2"
><A
NAME="DIFFERS"
-></A
->1.6. How does Privoxy differ
-from the old Junkbuster?</H3
+>1.7. How does Privoxy differ
+from the old Junkbuster?</A
+></H3
><P
> <SPAN
CLASS="APPLICATION"
TARGET="_top"
>cookies</A
>, and still
- helps protect your privacy. But, these are all greatly enhanced, and many,
- many new features have been added, all in the same vein.
+ helps protect your privacy. But, most of these features have been enhanced,
+ and many new ones have been added, all in the same vein.
</P
><P
-> The configuration has changed significantly as well. This is something that
- users will notice right off the bat if upgrading from
- <SPAN
-CLASS="APPLICATION"
->Junkbuster</SPAN
-> 2.0.x. The <SPAN
-CLASS="QUOTE"
->"blocklist"</SPAN
->
- <SPAN
-CLASS="QUOTE"
->"cookielist"</SPAN
->, <SPAN
-CLASS="QUOTE"
->"imagelist"</SPAN
-> and much more has been
- combined into the <SPAN
-CLASS="QUOTE"
->"actions"</SPAN
-> files, with a completely different
- syntax. See the <A
-HREF="../user-manual/whatsnew.html"
-TARGET="_top"
->What's New</A
->
- page for the latest updates.</P
-><P
> <SPAN
CLASS="APPLICATION"
>Privoxy</SPAN
><UL
><LI
><P
+> Can be run as an "intercepting" proxy, which obviates the need to
+ configure browsers individually.
+ </P
+></LI
+><LI
+><P
+> Sophisticated actions and filters for manipulating both server and client
+ headers.
+ </P
+></LI
+><LI
+><P
+> Can be chained with other proxies.
+ </P
+></LI
+><LI
+><P
> Integrated browser based configuration and control utility at <A
HREF="http://config.privoxy.org/"
TARGET="_top"
></LI
><LI
><P
-> Web page content filtering (removes banners based on size,
+> Web page filtering (text replacements, removes banners based on size,
invisible <SPAN
CLASS="QUOTE"
>"web-bugs"</SPAN
->, JavaScript and HTML annoyances, pop-up windows, etc.)
+>, JavaScript and HTML annoyances,
+ pop-up windows, etc.)
</P
></LI
><LI
></LI
><LI
><P
-> HTTP/1.1 compliant (but not all optional 1.1 features are supported).
- </P
-></LI
-><LI
-><P
> Support for Perl Compatible Regular Expressions in the configuration files, and
- generally a more sophisticated and flexible configuration syntax over
- previous versions.
+ a more sophisticated and flexible configuration syntax.
</P
></LI
><LI
CLASS="SECT2"
><A
NAME="WHATSANAD"
-></A
->1.7. How does Privoxy know what is
-an ad, and what is not?</H3
+>1.8. How does Privoxy know what is
+an ad, and what is not?</A
+></H3
><P
> <SPAN
CLASS="APPLICATION"
><H3
CLASS="SECT2"
><A
-NAME="AEN155"
-></A
->1.8. Can Privoxy make mistakes?
-This does not sound very scientific.</H3
+NAME="AEN157"
+>1.9. Can Privoxy make mistakes?
+This does not sound very scientific.</A
+></H3
><P
> Actually, it's a black art ;-) And yes, it is always possible to have a broad
rule accidentally block or change something by mistake. You will almost surely
><H3
CLASS="SECT2"
><A
-NAME="AEN161"
-></A
->1.9. Will I have to configure Privoxy
- before I can use it?</H3
+NAME="AEN163"
+>1.10. Will I have to configure Privoxy
+ before I can use it?</A
+></H3
><P
-> No, not really. The default installation should give you a good starting
+> That depends on your expectations.
+ The default installation should give you a good starting
point, and block <SPAN
CLASS="emphasis"
><I
CLASS="EMPHASIS"
>most</I
></SPAN
-> unwanted content.</P
+> ads and unwanted content,
+ but many of the more advanced features are off by default, and require
+ you to activate them. </P
><P
-> But you will certainly run into situations where there are false positives,
+> You do have to set up your browser to use
+ <SPAN
+CLASS="APPLICATION"
+>Privoxy</SPAN
+> (see the <A
+HREF="installation.html#FIRSTSTEP"
+>Installation section below</A
+>). </P
+><P
+> And you will certainly run into situations where there are false positives,
or ads not being blocked that you may not want to see. In these cases, you
would certainly benefit by customizing <SPAN
CLASS="APPLICATION"
>Privoxy's</SPAN
>
- configuration to more closely match your individual situation. And we would
+ configuration to more closely match your individual situation. And we
encourage you to do this. This is where the real power of
<SPAN
CLASS="APPLICATION"
>Privoxy</SPAN
> lies!</P
+></DIV
+><DIV
+CLASS="SECT2"
+><H3
+CLASS="SECT2"
+><A
+NAME="LAN"
+>1.11. Can Privoxy run as a server on a network?</A
+></H3
><P
-> You will have to tell your browser about <SPAN
+>
+ Yes, <SPAN
CLASS="APPLICATION"
>Privoxy</SPAN
->
- (see the Installation section below).</P
+> runs as a server already, and can easily be configured to
+ <SPAN
+CLASS="QUOTE"
+>"serve"</SPAN
+> more than one client. See <A
+HREF="configuration.html#LANCONFIG"
+> How can I set up Privoxy to act as a proxy for my LAN</A
+> below.</P
></DIV
><DIV
CLASS="SECT2"
CLASS="SECT2"
><A
NAME="BROWSERS2"
-></A
->1.10. My browser does the same things as
-Privoxy. Why should I use
-Privoxy at all?</H3
+>1.12. My browser does the same things as
+Privoxy. Why should I use Privoxy at all?</A
+></H3
><P
> Modern browsers do indeed have <SPAN
CLASS="emphasis"
adequate for you. But <SPAN
CLASS="APPLICATION"
>Privoxy</SPAN
-> is much more
- versatile and powerful, and can do a number of things that browsers just can't.
+> is very
+ versatile and powerful, and can probably do a number of things
+ your browser just can't.
</P
><P
> In addition, a proxy is good choice if you use multiple browsers, or
- have a LAN with multiple computers. This way all the configuration
- is in one place, and you don't have to maintain a similar configuration
- for possibly many browsers.
+ have a LAN with multiple computers since <SPAN
+CLASS="APPLICATION"
+>Privoxy</SPAN
+> can run as a server
+ application. This way all the configuration is in one place, and you don't
+ have to maintain a similar configuration for possibly many browsers or
+ users.
+ </P
+><P
+> Note, however, that it's recommended to leverage both your browser's
+ and <SPAN
+CLASS="APPLICATION"
+>Privoxy's</SPAN
+> privacy enhancing features
+ at the same time. While your browser probably lacks some features
+ <SPAN
+CLASS="APPLICATION"
+>Privoxy</SPAN
+> offers, it should also be able to do some things more
+ reliable, for example restricting and suppressing JavaScript.
</P
></DIV
><DIV
CLASS="SECT2"
><A
NAME="WHYTRUST"
-></A
->1.11. Why should I trust Privoxy?</H3
+>1.13. Why should I trust Privoxy?</A
+></H3
><P
> The most important reason is because you have access to
<SPAN
>, and you can control everything. You can
check every line of every configuration file yourself. You can check every
last bit of source code should you desire. And even if you can't read code,
- there should be some comfort in knowing that thousands of other people can,
- and do read it. You can build the software from scratch, if you want, so
- that you know the executable is clean, and that it is
+ there should be some comfort in knowing that other people can,
+ and do read it. You can build the software from scratch, if you want,
+ so that you know the executable is clean, and that it is
<SPAN
CLASS="emphasis"
><I
CLASS="SECT2"
><A
NAME="LICENSE"
-></A
->1.12. Is there is a license or fee? What about a
-warranty? Registration?</H3
+>1.14. Is there is a license or fee? What about a
+warranty? Registration?</A
+></H3
><P
> <SPAN
CLASS="APPLICATION"
>Privoxy</SPAN
-> is licensed under the <A
-HREF="http://www.gnu.org/copyleft/gpl.html"
+> is free software and licensed under the <A
+HREF="http://www.gnu.org/licenses/old-licenses/gpl-2.0.html"
TARGET="_top"
->GNU General Public License (GPL)</A
+>GNU General Public License (GPL) version 2</A
>.
It is free to use, copy, modify or distribute as you wish under the terms of this
license. Please see the <A
></SPAN
> of any kind, expressed, implied or otherwise.
That is something that would cost real money ;-) There is no registration either.
- <SPAN
-CLASS="APPLICATION"
->Privoxy</SPAN
-> really is <SPAN
-CLASS="emphasis"
-><I
-CLASS="EMPHASIS"
->free</I
-></SPAN
->
- in every respect!
</P
></DIV
><DIV
CLASS="SECT2"
><A
NAME="SPYWARE"
-></A
->1.13. Can Privoxy remove spyware? Adware? Viruses?</H3
+>1.15. Can Privoxy remove spyware? Adware? Viruses?</A
+></H3
><P
-> No. <SPAN
+> No, at least not reliably enough to trust it. <SPAN
CLASS="APPLICATION"
>Privoxy</SPAN
-> cannot remove anything. It is not a removal tool. It is a
- preventative. <SPAN
+> is not designed to be
+ a malware removal tool and the default configuration doesn't even try to
+ filter out any malware.</P
+><P
+> <SPAN
CLASS="APPLICATION"
>Privoxy</SPAN
-> can help prevent contact from sites
- that use such tactics with approriate configuration rules, and thus could
- conceivably prevent contamination from such sites.</P
+> could help prevent contact from (known) sites that use such
+ tactics with appropriate configuration rules, and thus could conceivably
+ prevent contamination from such sites. However, keeping such a configuration
+ up to date would require a lot of time and effort that would be better spend
+ on keeping your software itself up to date so it doesn't have known
+ vulnerabilities.</P
></DIV
><DIV
CLASS="SECT2"
CLASS="SECT2"
><A
NAME="OTHERADS"
-></A
->1.14. Can I use Privoxy with other ad-blocking software?</H3
+>1.16. Can I use Privoxy with other ad-blocking software?</A
+></H3
><P
> <SPAN
CLASS="APPLICATION"
>Privoxy</SPAN
> in conjunction with other
ad-blocking products, and this could conceivably cause undesirable results.
- It would be better to choose one software or the other and work a little to
+ It might be better to choose one software or the other and work a little to
tweak its configuration to your liking.</P
+><P
+> Note that this is an advice specific to ad blocking.</P
></DIV
><DIV
CLASS="SECT2"
CLASS="SECT2"
><A
NAME="JOINTEAM"
-></A
->1.15. I would like to help you, what can I do?</H3
+>1.17. I would like to help you, what can I do?</A
+></H3
><DIV
CLASS="SECT3"
><H4
CLASS="SECT3"
><A
NAME="JOINTEAM-WORK"
-></A
->1.15.1. Would you like to participate?</H4
+>1.17.1. Would you like to participate?</A
+></H4
><P
> Well, we <SPAN
CLASS="emphasis"
>, at least
the pertinent sections.</P
><P
-> Once we have added you to the team, you'll have access to the <A
-HREF="http://sourceforge.net/cvs/?group_id=11118"
-TARGET="_top"
->CVS repository</A
->, and
- together we'll find a suitable task for you.</P
+> You can also start helping out without SourceForge.net account,
+ simply by showing up on the mailing list, helping out other users,
+ providing general feedback or reporting problems you noticed.
+ </P
></DIV
><DIV
CLASS="SECT3"
CLASS="SECT3"
><A
NAME="JOINTEAM-MONEY"
-></A
->1.15.2. Contribute!</H4
+>1.17.2. Contribute!</A
+></H4
><P
> We, of course, welcome donations and could use money for domain registering,
buying software to test <SPAN
HREF="mailto: ijbswa-developers@lists.sourceforge.net"
TARGET="_top"
>drop us a note</A
->.</P
+>
+ and get your name on the list of contributors.</P
></DIV
><DIV
CLASS="SECT3"
CLASS="SECT3"
><A
NAME="JOINTEAM-SOFTWARE"
-></A
->1.15.3. Software</H4
+>1.17.3. Software</A
+></H4
><P
> If you are a vendor of a web-related software like a browser, web server
or proxy, and would like us to ensure that <SPAN