X-Git-Url: http://www.privoxy.org/gitweb/?p=privoxy.git;a=blobdiff_plain;f=doc%2Fsource%2Fp-config.sgml;h=ba974539df0f024aa0f5ff820acf2c48fbdb9e14;hp=7c420848406798894393a2f14c63d7058f53758d;hb=3f47e92cd5ade006b4911f98d0f24e61048075e6;hpb=448ef60b199803410296ff172d2a1f83dcf8565c diff --git a/doc/source/p-config.sgml b/doc/source/p-config.sgml index 7c420848..ba974539 100644 --- a/doc/source/p-config.sgml +++ b/doc/source/p-config.sgml @@ -1,11 +1,9 @@ + +I. INTRODUCTION + =============== + This file holds Privoxy's main configuration. Privoxy detects @@ -251,30 +240,22 @@ II. FORMAT OF THE CONFIGURATION FILE Unix, in local filesystem (may not work with all browsers): -   user-manual  file:///usr/share/doc/privoxy-&p-version;/user-manual/ - Windows, in local filesystem, must use forward slash notation: -   user-manual  file:/c:/some-dir/privoxy-&p-version;/user-manual/ - Windows, UNC notation (with forward slashes): -   user-manual  file://///some-server/some-path/privoxy-&p-version;/user-manual/ - --> The best all purpose solution is simply to put the full local PATH to where the User Manual is located: - -   user-manual  /usr/share/doc/privoxy/user-manual - + user-manual /usr/share/doc/privoxy/user-manual The User Manual is then available to anyone with access to Privoxy, by following the built-in URL: @@ -285,9 +266,7 @@ II. FORMAT OF THE CONFIGURATION FILE If the documentation is not on the local system, it can be accessed from a remote server, as: - -   user-manual  http://example.com/privoxy/user-manual/ - + user-manual http://example.com/privoxy/user-manual/ @@ -1035,7 +1014,6 @@ actionsfile The available debug levels are: - debug 1 # Log the destination for each request &my-app; let through. See also debug 1024. debug 2 # show each connection status @@ -1054,7 +1032,6 @@ actionsfile debug 32768 # log all data read from the network debug 65536 # Log the applying actions - To select multiple debug levels, you can either add them or use multiple debug lines. @@ -1329,21 +1306,17 @@ actionsfile (192.168.0.0) and has another outside connection with a different address. You want it to serve requests from inside only: - listen-address 192.168.0.1:8118 - Suppose you are running Privoxy on an IPv6-capable machine and you want it to listen on the IPv6 address of the loopback device: - listen-address [::1]:8118 - @@ -1790,49 +1763,39 @@ ACLs: permit-access and deny-access is OK. The absence of a dst_addr implies that all destination addresses are OK: - permit-access localhost - Allow any host on the same class C subnet as www.privoxy.org access to nothing but www.example.com (or other domains hosted on the same system): - permit-access www.privoxy.org/24 www.example.com/32 - Allow access from any host on the 26-bit subnet 192.168.45.64 to anywhere, with the exception that 192.168.45.73 may not access the IP address behind www.dirty-stuff.example.com: - permit-access 192.168.45.64/26 deny-access 192.168.45.73 www.dirty-stuff.example.com - Allow access from the IPv4 network 192.0.2.0/24 even if listening on an IPv6 wild card address (not supported on all platforms): - permit-access 192.0.2.0/24 - This is equivalent to the following line even if listening on an IPv4 address (not supported on all platforms): - permit-access [::ffff:192.0.2.0]/120 - @@ -2031,7 +1994,7 @@ ACLs: permit-access and deny-access -@@trusted-cgi-referer http://www.example.org/local-privoxy-control-page]]> +@@#trusted-cgi-referer http://www.example.org/local-privoxy-control-page]]> @@ -2138,40 +2101,32 @@ ACLs: permit-access and deny-access Everything goes to an example parent proxy, except SSL on port 443 (which it doesn't handle): - forward / parent-proxy.example.org:8080 forward :443 . - Everything goes to our example ISP's caching proxy, except for requests to that ISP's sites: - forward / caching-proxy.isp.example.net:8000 forward .isp.example.net . - Parent proxy specified by an IPv6 address: - forward / [2001:DB8::1]:8000 - Suppose your parent proxy doesn't support IPv6: - forward / parent-proxy.example.org:8000 forward ipv6-server.example.org . forward <[2-3][0-9a-f][0-9a-f][0-9a-f]:*> . - @@ -2276,30 +2231,24 @@ forward-socks4, forward-socks4a, forward-socks5 and forward-socks5t their ISP's proxy by way of example.com's corporate SOCKS 4A gateway to the Internet. - forward-socks4a / socks-gw.example.com:1080 www-cache.isp.example.net:8080 forward .example.com . - A rule that uses a SOCKS 4 gateway for all destinations but no HTTP parent looks like this: - forward-socks4 / socks-gw.example.com:1080 . - To chain Privoxy and Tor, both running on the same system, you would use something like: - forward-socks5t / 127.0.0.1:9050 . - Note that if you got Tor through one of the bundles, you may have to change the port from 9050 to 9150 (or even another one). @@ -2311,13 +2260,11 @@ forward-socks4, forward-socks4a, forward-socks5 and forward-socks5t reach your local network, if you need to access local servers you therefore might want to make some exceptions: - forward 192.168.*.*/ . - forward 10.*.*.*/ . - forward 127.*.*.*/ . + forward 10.*.*.*/ . + forward 127.*.*.*/ . - Unencrypted connections to systems in these address ranges will be as (un)secure as the local network is, but the alternative is that you @@ -2330,11 +2277,9 @@ forward-socks4, forward-socks4a, forward-socks5 and forward-socks5t using their names, you will need additional exceptions that look like this: - forward localhost/ . - @@ -2362,23 +2307,19 @@ forward-socks4, forward-socks4a, forward-socks5 and forward-socks5t host-a: - forward / . forward .isp-b.example.net host-b:8118 - host-b: - forward / . forward .isp-a.example.org host-a:8118 - Now, your users can set their browser's proxy to use either @@ -2397,7 +2338,6 @@ forward-socks4, forward-socks4a, forward-socks5 and forward-socks5t run on the same box, your squid configuration could then look like this: - # Define Privoxy as parent proxy (without ICP) cache_peer 127.0.0.1 parent 8118 7 no-query @@ -2410,7 +2350,6 @@ forward-socks4, forward-socks4a, forward-socks5 and forward-socks5t # Forward all the rest to Privoxy never_direct allow all - You would then need to change your browser's proxy settings to squid's address and port. @@ -2423,11 +2362,9 @@ forward-socks4, forward-socks4a, forward-socks5 and forward-socks5t say, on antivir.example.com, port 8010: - forward / . forward /.*\.(exe|com|dll|zip)$ antivir.example.com:8010 - ]]> @@ -3176,6 +3113,156 @@ forward-socks4, forward-socks4a, forward-socks5 and forward-socks5t +listen-backlog + + + Specifies: + + + Connection queue length requested from the operating system. + + + + + Type of value: + + + Number. + + + + + Default value: + + 128 + + + + Effect if unset: + + + A connection queue length of 128 is requested from the operating system. + + + + + Notes: + + + Under high load incoming connection may queue up before Privoxy + gets around to serve them. The queue length is limitted by the + operating system. Once the queue is full, additional connections + are dropped before Privoxy can accept and serve them. + + + Increasing the queue length allows Privoxy to accept more + incomming connections that arrive roughly at the same time. + + + Note that Privoxy can only request a certain queue length, + whether or not the requested length is actually used depends + on the operating system which may use a different length instead. + + + On many operating systems a limit of -1 can be specified to + instruct the operating system to use the maximum queue length + allowed. Check the listen man page to see if your platform allows this. + + + On some platforms you can use "netstat -Lan -p tcp" to see the effective + queue length. + + + Effectively using a value above 128 usually requires changing + the system configuration as well. On FreeBSD-based system the + limit is controlled by the kern.ipc.soacceptqueue sysctl. + + + + + Examples: + + + listen-backlog 4096 + + + + +@@#listen-backlog -1]]> + + + +enable-accept-filter + + + Specifies: + + + Whether or not Privoxy should use an accept filter + + + + + Type of value: + + + 0 or 1 + + + + + Default value: + + 0 + + + + Effect if unset: + + + No accept filter is enabled. + + + + + Notes: + + + Accept filters reduce the number of context switches by not + passing sockets for new connections to Privoxy until a complete + HTTP request is available. + + + As a result, Privoxy can process the whole request right away + without having to wait for additional data first. + + + For this option to work, Privoxy has to be compiled with + FEATURE_ACCEPT_FILTER and the operating system has to support + it (which may require loading a kernel module). + + + Currently accept filters are only supported on FreeBSD-based + systems. Check the + accf_http(9) + man page + to learn how to enable the support in the operating system. + + + + + Examples: + + + enable-accept-filter 1 + + + + +@@#enable-accept-filter 1]]> + + + handle-as-empty-doc-returns-ok @@ -3225,8 +3312,8 @@ forward-socks4, forward-socks4a, forward-socks5 and forward-socks5t This directive was added as a work-around for Firefox bug 492459: Websites are no longer rendered if SSL requests for JavaScripts are blocked by a proxy. - (https://bugzilla.mozilla.org/show_bug.cgi?id=492459), + ( + https://bugzilla.mozilla.org/show_bug.cgi?id=492459), the bug has been fixed for quite some time, but this directive is also useful to make it harder for websites to detect whether or not resources are being blocked. @@ -3345,20 +3432,20 @@ forward-socks4, forward-socks4a, forward-socks5 and forward-socks5t Examples: - # Best speed (compared to the other levels) compression-level 1 + # Best compression compression-level 9 + # No compression. Only useful for testing as the added header # slightly increases the amount of data that has to be sent. # If your benchmark shows that using this compression level # is superior to using no compression at all, the benchmark # is likely to be flawed. compression-level 0 - - + @@ -3506,14 +3593,12 @@ forward-socks4, forward-socks4a, forward-socks5 and forward-socks5t Examples: - # Define a couple of tags, the described effect requires action sections # that are enabled based on CLIENT-TAG patterns. client-specific-tag circumvent-blocks Overrule blocks but do not affect other actions disable-content-filters Disable content-filters but do not affect other actions - - + @@ -3571,12 +3656,10 @@ forward-socks4, forward-socks4a, forward-socks5 and forward-socks5t Examples: - # Increase the time to life for temporarily enabled tags to 3 minutes client-tag-lifetime 180 - - + @@ -3645,22 +3728,92 @@ forward-socks4, forward-socks4a, forward-socks5 and forward-socks5t Examples: - # Allow systems that can reach Privoxy to provide the client # IP address with a X-Forwarded-For header. trust-x-forwarded-for 1 - - + - + + + + +receive-buffer-size + + + Specifies: + + + The size of the buffer Privoxy uses to receive data from the server. + + + + + Type of value: + + + Size in bytes + + + + + Default value: + + 5000 + + + + Notes: + + + Increasing the receive-buffer-size increases Privoxy's memory usage but + can lower the number of context switches and thereby reduce the + cpu usage and potentially increase the throughput. + + + This is mostly relevant for fast network connections and + large downloads that don't require filtering. + + + Reducing the buffer size reduces the amount of memory Privoxy + needs to handle the request but increases the number of systemcalls + and may reduce the throughput. + + + A dtrace command like: + sudo dtrace -n 'syscall::read:return /execname == "privoxy"/ { @[execname] = llquantize(arg0, 10, 0, 5, 20); @m = max(arg0)}' + can be used to properly tune the receive-buffer-size. + On systems without dtrace, strace or truss may be used as + less convenient alternatives. + + + If the buffer is too large it will increase Privoxy's memory + footprint without any benefit. As the memory is (currently) + cleared before using it, a buffer that is too large can + actually reduce the throughput. + + + + + Examples: + + + # Increase the receive buffer size + receive-buffer-size 32768 + + + + + + + @@ -3680,15 +3833,9 @@ forward-socks4, forward-socks4a, forward-socks5 and forward-socks5t @@#activity-animation 1]]> - - activity-animation 1 - - - - + ]]> @@ -3702,15 +3849,9 @@ forward-socks4, forward-socks4a, forward-socks5 and forward-socks5t @@#log-messages 1]]> - - log-messages 1 - - - - + ]]> @@ -3728,15 +3869,9 @@ forward-socks4, forward-socks4a, forward-socks5 and forward-socks5t @@#log-buffer-size 1]]> - - log-buffer-size 1 - - - - + ]]> @@ -3748,15 +3883,9 @@ forward-socks4, forward-socks4a, forward-socks5 and forward-socks5t @@#log-max-lines 200]]> - - log-max-lines 200 - - - - + ]]> @@ -3769,15 +3898,9 @@ forward-socks4, forward-socks4a, forward-socks5 and forward-socks5t @@#log-highlight-messages 1]]> - - log-highlight-messages 1 - - - - + ]]> @@ -3788,15 +3911,9 @@ forward-socks4, forward-socks4a, forward-socks5 and forward-socks5t @@#log-font-name Comic Sans MS]]> - - log-font-name Comic Sans MS - - - - + ]]> @@ -3807,15 +3924,9 @@ forward-socks4, forward-socks4a, forward-socks5 and forward-socks5t @@#log-font-size 8]]> - - log-font-size 8 - - - - + ]]> @@ -3828,15 +3939,9 @@ forward-socks4, forward-socks4a, forward-socks5 and forward-socks5t @@#show-on-task-bar 0]]> - - show-on-task-bar 0 - - - - + ]]> @@ -3849,15 +3954,9 @@ forward-socks4, forward-socks4a, forward-socks5 and forward-socks5t @@#close-button-minimizes 1]]> - - close-button-minimizes 1 - - - - + ]]> @@ -3871,15 +3970,9 @@ forward-socks4, forward-socks4a, forward-socks5 and forward-socks5t @@#hide-console]]> - - #hide-console - - - - + ]]>