X-Git-Url: http://www.privoxy.org/gitweb/?p=privoxy.git;a=blobdiff_plain;f=doc%2Fsource%2Ffaq.sgml;h=127d9ce9a4f2f20cf4a4a5d0c40ee15cad815e2b;hp=3734533415b38ca4b54486dfb72bef0241c051ff;hb=7a99a61ab1a3ce0401821aedcd06eba19a698b2a;hpb=bc3e16a32b3875acee437f274863933b4e647dcb diff --git a/doc/source/faq.sgml b/doc/source/faq.sgml index 37345334..127d9ce9 100644 --- a/doc/source/faq.sgml +++ b/doc/source/faq.sgml @@ -27,7 +27,7 @@ This file belongs into ijbswa.sourceforge.net:/home/groups/i/ij/ijbswa/htdocs/ - $Id: faq.sgml,v 2.114 2016/02/26 12:27:32 fabiankeil Exp $ + $Id: faq.sgml,v 2.117 2016/03/04 13:21:33 fabiankeil Exp $ Copyright (C) 2001-2014 Privoxy Developers http://www.privoxy.org/ See LICENSE. @@ -78,7 +78,7 @@ -$Id: faq.sgml,v 2.114 2016/02/26 12:27:32 fabiankeil Exp $ +$Id: faq.sgml,v 2.117 2016/03/04 13:21:33 fabiankeil Exp $ Configuration - -What exactly is an <quote>actions</quote> file? + +What exactly is an <quote>actions</quote> file? &my-app; utilizes the concept of @@ -797,8 +796,8 @@ some of these actions. - -How are actions files configured? What is the easiest +<sect2 renderas="sect3" id="actconfig"> +<title>How are actions files configured? What is the easiest way to do this? @@ -983,8 +982,8 @@ with a browser? Does that not raise security issues? - -What is the <filename>default.filter</filename> file? What is a <quote>filter</quote>? + +What is the <filename>default.filter</filename> file? What is a <quote>filter</quote>? The default.filter file is where filters as supplied by the developers are defined. @@ -1102,8 +1101,8 @@ 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 +1124,8 @@ 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 +1139,8 @@ with a browser? Does that not raise security issues? - -I see some images being replaced with text +<sect2 renderas="sect3" id="blockedbytext"> +<title>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 @@ -1530,8 +1529,8 @@ the BLOCKED page? Miscellaneous - -How much does Privoxy slow my browsing down? This +<sect2 renderas="sect3" id="slowsme"> +<title>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 +1710,8 @@ 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 +1754,8 @@ 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 +1867,8 @@ us help you. Your efforts are not wasted, and we do appreciate them. - -Might some things break because header information or +<sect2 renderas="sect3" id="sitebreak"> +<title>Might some things break because header information or content is being altered? @@ -1918,8 +1917,8 @@ content is being altered? - -Can Privoxy act as a <quote>caching</quote> proxy to +<sect2 renderas="sect3" id="caching"> +<title>Can Privoxy act as a <quote>caching</quote> proxy to speed up web browsing? No, it does not have this ability at all. You want something like @@ -1933,8 +1932,8 @@ 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 +1942,8 @@ speed up web browsing? - -I have large empty spaces / a checkerboard pattern now where +<sect2 renderas="sect3" id="wasted"> +<title>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 +1971,8 @@ 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 +2003,8 @@ ads used to be. Why? - -Privoxy runs as a <quote>server</quote>. How +<sect2 renderas="sect3" id="secure"> +<title>Privoxy runs as a <quote>server</quote>. How secure is it? Do I need to take any special precautions? On Unix-like systems, Privoxy can run as a non-privileged @@ -2277,8 +2276,8 @@ and related issues? Troubleshooting - -I cannot connect to any websites. Or, I am getting +<sect2 renderas="sect3" id="refused"> +<title>I cannot connect to any websites. Or, I am getting <quote>connection refused</quote> message with every web page. Why? There are several possibilities: @@ -2319,8 +2318,8 @@ and related issues? - -I just added a new rule, but the steenkin ad is +<sect2 renderas="sect3" id="flushit"> +<title>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 +2401,8 @@ Request: 66.70.21.80/scripts/click.php?hid=a71b9f6504b0c5681fa5&si=Ua - -One of my favorite sites does not work with Privoxy. +<sect2 renderas="sect3" id="badsite"> +<title>One of my favorite sites does not work with Privoxy. What can I do? @@ -2953,6 +2952,42 @@ 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. + +