X-Git-Url: http://www.privoxy.org/gitweb/?a=blobdiff_plain;ds=inline;f=doc%2Fsource%2Ffaq.sgml;h=a39505cc6a6b181362db4139a9b2ade1f7a19bbb;hb=b0bab98fb1aaec975b0d05eb03dfca6c381f3c55;hp=f74bd0fc68f274a0c411447d5fe8f77f88f2148b;hpb=7662ca8c3b8a9847d71dbbcd112dacbf1f7581ac;p=privoxy.git
diff --git a/doc/source/faq.sgml b/doc/source/faq.sgml
index f74bd0fc..a39505cc 100644
--- a/doc/source/faq.sgml
+++ b/doc/source/faq.sgml
@@ -27,9 +27,9 @@
This file belongs into
ijbswa.sourceforge.net:/home/groups/i/ij/ijbswa/htdocs/
- $Id: faq.sgml,v 2.115 2016/02/26 12:32:39 fabiankeil Exp $
+ $Id: faq.sgml,v 2.122 2016/05/22 12:41:30 fabiankeil Exp $
- Copyright (C) 2001-2014 Privoxy Developers http://www.privoxy.org/
+ Copyright (C) 2001-2014 Privoxy Developers https://www.privoxy.org/
See LICENSE.
Based partially on the Internet Junkbuster FAQ originally written by and
@@ -74,11 +74,11 @@
Copyright &my-copy; 2001-2014 by
- Privoxy Developers
+ Privoxy Developers
-$Id: faq.sgml,v 2.115 2016/02/26 12:32:39 fabiankeil Exp $
+$Id: faq.sgml,v 2.122 2016/05/22 12:41:30 fabiankeil Exp $
-
-
@@ -236,8 +233,8 @@ Privoxy work?
-
-Why Privoxy? Why change the name from
+
+Why Privoxy? Why change the name from
Junkbuster at all?
Though outdated, Junkbusters Corporation continued to offer their original
@@ -289,8 +286,7 @@ from the old Junkbuster?
-How does Privoxy know what is
-an ad, and what is not?
+How does Privoxy know what is an ad, and what is not?Privoxy's approach to blocking ads is twofold:
@@ -318,8 +314,8 @@ an ad, and what is not?
-
-Can Privoxy make mistakes?
+
+Can Privoxy make mistakes?
This does not sound very scientific.
Actually, it's a black art ;-) And yes, it is always possible to have a broad
@@ -338,8 +334,8 @@ This does not sound very scientific.
-
-Will I have to configure Privoxy
+
+Will I have to configure Privoxy
before I can use it?
That depends on your expectations.
@@ -463,9 +459,9 @@ warranty? Registration?
-I would like to help you, what can I do?
+I would like to help you, what can I do?
-Would you like to participate?
+Would you like to participate?
Well, we always need help. There is something for
everybody who wants to help us. We welcome new developers, packagers,
@@ -479,8 +475,8 @@ warranty? Registration?
So first thing, subscribe to the Privoxy Users
- or the Privoxy
+ url="https://lists.privoxy.org/mailman/listinfo/privoxy-users">Privoxy Users
+ or the Privoxy
Developers mailing list, join the discussion, help out other users, provide general
feedback or report problems you noticed.
@@ -504,7 +500,7 @@ warranty? Registration?
Would you like to donate?
Donations are welcome. Our
- TODO list
+ TODO list
is rather long and being able to pay one (or more) developers to work on Privoxy
would make a huge difference, even if it was only for a couple of weeks. Donations may
also be used for Privoxy-related travel expenses (for example to attend conferences),
@@ -548,7 +544,7 @@ warranty? Registration?
If you have any questions regarding donations please mail to either the
public user mailing list or, if it's a private matter, to
- Fabian Keil (Privoxy's SPI liason)
+ Fabian Keil (Privoxy's SPI liaison)
directly.
@@ -702,9 +698,9 @@ All the ads are there. What's wrong?
Privoxy is not running at all. Check the log file. For instructions
on starting Privoxy and browser configuration,
- see the chapter
+ see the chapter
on starting Privoxy in the
- User Manual.
+ User Manual.
@@ -717,9 +713,9 @@ Privoxy is running and being used.
First, make sure that Privoxy is really running and
being used by visiting http://p.p/. You
should see the Privoxy main page. If not, see
- the chapter
+ the chapter
on starting Privoxy in the
- User Manual.
+ User Manual.
@@ -752,8 +748,8 @@ Privoxy is running and being used.
Configuration
-
-What exactly is an actions file?
+
+What exactly is an actions file?
&my-app; utilizes the concept of
@@ -797,8 +793,8 @@ some of these actions.
-
-How are actions files configured? What is the easiest
+
+How are actions files configured? What is the easiest
way to do this?
@@ -831,15 +827,15 @@ the differences?
Based on your feedback and the continuing development, updates of
default.action will be
made available from time to time on the files section of
- our project page.
+ url="https://sourceforge.net/project/showfiles.php?group_id=11118">files section of
+ our project page.
If you wish to receive an email notification whenever we release updates of
Privoxy or the actions file, subscribe
- to our announce mailing list, ijbswa-announce@lists.sourceforge.net.
+ url="https://lists.privoxy.org/mailman/listinfo/privoxy-announce">subscribe
+ to our announce mailing list, privoxy-announce@lists.privoxy.org.
@@ -983,8 +979,8 @@ with a browser? Does that not raise security issues?
-
-What is the default.filter file? What is a filter?
+
+What is the default.filter file? What is a filter?
The default.filter
file is where filters as supplied by the developers are defined.
@@ -1037,7 +1033,7 @@ with a browser? Does that not raise security issues?
If you intend to develop your own filters, you might want to have a look at
Privoxy-Filter-Test.
+ url="https://www.fabiankeil.de/sourcecode/pft/">Privoxy-Filter-Test.
@@ -1102,8 +1098,8 @@ with a browser? Does that not raise security issues?
-
-Instead of ads, now I get a checkerboard pattern. I don't want to see anything.
+
+Instead of ads, now I get a checkerboard pattern. I don't want to see anything.
The replacement for blocked images can be controlled with the set-image-blocker
@@ -1125,8 +1121,8 @@ with a browser? Does that not raise security issues?
-
-Why would anybody want to see a checkerboard pattern?
+
+Why would anybody want to see a checkerboard pattern?
Remember that telling which image is an ad and which
isn't, is an educated guess. While we hope that the standard configuration
@@ -1140,8 +1136,8 @@ with a browser? Does that not raise security issues?
-
-I see some images being replaced with text
+
+I see some images being replaced with text
instead of the checkerboard image. Why and how do I get rid of this?
This happens when the banners are not embedded in the HTML code of the
@@ -1180,7 +1176,7 @@ on Win2K/NT/XP?
Earlier ]]>3.x versions could run as a system service using srvany.exe.
See the discussion at http://sourceforge.net/tracker/?func=detail&atid=361118&aid=485617&group_id=11118,
+ url="https://sourceforge.net/tracker/?func=detail&atid=361118&aid=485617&group_id=11118">https://sourceforge.net/tracker/?func=detail&atid=361118&aid=485617&group_id=11118,
for details, and a sample configuration.
@@ -1286,7 +1282,7 @@ and thus avoid individual browser configuration?
For a good discussion of some of the issues involved (including privacy and
security issues), see
- http://sourceforge.net/tracker/?func=detail&atid=211118&aid=629518&group_id=11118.
+ https://sourceforge.net/tracker/?func=detail&atid=211118&aid=629518&group_id=11118.
@@ -1530,8 +1526,8 @@ the BLOCKED page?
Miscellaneous
-
-How much does Privoxy slow my browsing down? This
+
+How much does Privoxy slow my browsing down? This
has to add extra time to browsing.
How much of an impact depends on many things, including the CPU of the host
@@ -1711,8 +1707,8 @@ us help you. Your efforts are not wasted, and we do appreciate them.
-
-Can Privoxy guarantee I am anonymous?
+
+Can Privoxy guarantee I am anonymous?
No. Your chances of remaining anonymous are improved, but unless you
chain Privoxy with Tor
@@ -1755,8 +1751,8 @@ us help you. Your efforts are not wasted, and we do appreciate them.
-
-A test site says I am not using a Proxy.
+
+A test site says I am not using a Proxy.
Good! Actually, they are probably testing for some other kinds of proxies.
Hiding yourself completely would require additional steps.
@@ -1868,8 +1864,8 @@ us help you. Your efforts are not wasted, and we do appreciate them.
-
-Might some things break because header information or
+
+Might some things break because header information or
content is being altered?
@@ -1918,8 +1914,8 @@ content is being altered?
-
-Can Privoxy act as a caching proxy to
+
+Can Privoxy act as a caching proxy to
speed up web browsing?
No, it does not have this ability at all. You want something like
@@ -1933,8 +1929,8 @@ speed up web browsing?
-
-What about as a firewall? Can Privoxy protect me?
+
+What about as a firewall? Can Privoxy protect me?
Not in the way you mean, or in the way some firewall vendors claim they can.
Privoxy can help protect your privacy, but can't
@@ -1943,8 +1939,8 @@ speed up web browsing?
-
-I have large empty spaces / a checkerboard pattern now where
+
+I have large empty spaces / a checkerboard pattern now where
ads used to be. Why?
It is technically possible to eliminate banners and ads in a way that frees
@@ -1972,8 +1968,8 @@ ads used to be. Why?
-
-How can Privoxy filter Secure (HTTPS) URLs?
+
+How can Privoxy filter Secure (HTTPS) URLs?
Since secure HTTP connections are encrypted SSL sessions between your browser
and the secure site, and are meant to be reliably secure,
@@ -2004,8 +2000,8 @@ ads used to be. Why?
-
-Privoxy runs as a server. How
+
+Privoxy runs as a server. How
secure is it? Do I need to take any special precautions?
On Unix-like systems, Privoxy can run as a non-privileged
@@ -2247,7 +2243,7 @@ and related issues?
Lately there have been reports of problems with some kind of
"parental control" software based on Privoxy that came preinstalled on
- certain ASUS Netbooks.
+ certain ASUS Netbooks.
The problems described are inconsistent with the behaviour of official
Privoxy versions, which suggests that the preinstalled software may
contain vendor modifications that we don't know about and thus can't debug.
@@ -2277,8 +2273,8 @@ and related issues?
Troubleshooting
-
-I cannot connect to any websites. Or, I am getting
+
+I cannot connect to any websites. Or, I am getting
connection refused message with every web page. Why?
There are several possibilities:
@@ -2319,8 +2315,8 @@ and related issues?
-
-I just added a new rule, but the steenkin ad is
+
+I just added a new rule, but the steenkin ad is
still getting through. How?
If the ad had been displayed before you added its URL, it will probably be
@@ -2402,8 +2398,8 @@ Request: 66.70.21.80/scripts/click.php?hid=a71b9f6504b0c5681fa5&si=Ua
-
-One of my favorite sites does not work with Privoxy.
+
+One of my favorite sites does not work with Privoxy.
What can I do?
@@ -2715,7 +2711,7 @@ Why?
Upgrading Privoxy, or going to the most recent
default.action file available from SourceForge
+ url="https://sourceforge.net/project/showfiles.php?group_id=11118">SourceForge
might be worth a try, too.
@@ -2953,6 +2949,62 @@ browsing has slowed to a crawl. What gives?
+
+What are tainted sockets and how do I prevent them?
+
+ &my-app; marks sockets as tainted when it can't use them to
+ serve additional requests.
+ This does not necessarily mean that something went wrong and
+ information about tainted sockets is only logged if connection
+ debugging is enabled (debug 2).
+
+
+ For example server sockets that were used for CONNECT requests
+ (which are used to tunnel https:// requests) are considered tainted
+ once the client closed its connection to &my-app;.
+ Technically &my-app; could keep the connection to the server open,
+ but the server would not accept requests that do not belong to the
+ previous TLS/SSL session (and the client may even have terminated
+ the session).
+
+
+ Server sockets are also marked tainted when a client requests a
+ resource, but closes the connection before &my-app; has completely
+ received (and forwarded) the resource to the client.
+ In this case the server would (probably) accept additional requests,
+ but &my-app; could not get the response without completely reading
+ the leftovers from the previous response.
+
+
+ These are just two examples, there are currently a bit more than
+ 25 scenarios in which a socket is considered tainted.
+
+
+ While sockets can also be marked tainted as a result of a technical
+ problem that may be worth fixing, the problem will be explicitly
+ logged as error.
+
+
+
+
+After adding my custom filters, &my-app; crashes when visitting certain websites
+
+ This can happen if your custom filters require more memory than &my-app;
+ is allowed to use.
+ Usually the problem is that the operating system enforces a stack size limit
+ that isn't sufficient.
+
+
+ Unless the problem occurs with the filters available in the default configuration,
+ this is not considered a Privoxy bug.
+
+
+ To prevent the crashes you can rewrite your filter to use less ressources,
+ increase the relevant memory limit or recompile pcre to use less stack space.
+ For details please see the
+ pcrestack man page
+ and the documentation of your operating system.
+