X-Git-Url: http://www.privoxy.org/gitweb/?p=privoxy.git;a=blobdiff_plain;f=doc%2Fsource%2Fp-config.sgml;h=2b46e9cabac3dcbb270858edea3afb8d5f454f1b;hp=8fe318369ad6fbf4ee03e0627d6ec95bab4a9409;hb=dde30f5e8bb12c63688330c97fde75493f92c09c;hpb=89c571890a7f2ba82241d297abb5bdc462f21799
diff --git a/doc/source/p-config.sgml b/doc/source/p-config.sgml
index 8fe31836..2b46e9ca 100644
--- a/doc/source/p-config.sgml
+++ b/doc/source/p-config.sgml
@@ -3,9 +3,9 @@
Purpose : Used with other docs and files only.
- $Id: p-config.sgml,v 2.36 2009/01/23 14:06:07 fabiankeil Exp $
+ $Id: p-config.sgml,v 2.75 2011/07/08 13:31:40 fabiankeil Exp $
- Copyright (C) 2001-2009 Privoxy Developers http://www.privoxy.org/
+ Copyright (C) 2001-2010 Privoxy Developers http://www.privoxy.org/
See LICENSE.
========================================================================
@@ -50,8 +50,8 @@
The Main Configuration File
- Again, the main configuration file is named config on
- Linux/Unix/BSD and OS/2, and config.txt on Windows.
+ By default, the main configuration file is named config,
+ with the exception of Windows, where it is named config.txt.
Configuration lines consist of an initial keyword followed by a list of
values, all separated by whitespace (any number of spaces or tabs). For
example:
@@ -81,7 +81,9 @@
The main config file controls all aspects of Privoxy's
operation that are not location dependent (i.e. they apply universally, no matter
- where you may be surfing).
+ where you may be surfing). Like the filter and action files, the config file is
+ a plain text file and can be modified with a text editor like emacs, vim or
+ notepad.exe.
]]>
@@ -95,10 +97,10 @@
Sample Configuration File for Privoxy v&p-version;
- $Id: p-config.sgml,v 2.36 2009/01/23 14:06:07 fabiankeil Exp $
+ $Id: p-config.sgml,v 2.75 2011/07/08 13:31:40 fabiankeil Exp $
-Copyright (C) 2001-2009 Privoxy Developers http://www.privoxy.org/
+Copyright (C) 2001-2010 Privoxy Developers http://www.privoxy.org/
@@ -338,7 +340,7 @@ II. FORMAT OF THE CONFIGURATION FILE
Default value:
- Two example URLs are provided
+ Unset
@@ -369,8 +371,8 @@ II. FORMAT OF THE CONFIGURATION FILE
-@@trust-info-url http://www.example.com/why_we_block.html]]>
-@@trust-info-url http://www.example.com/what_we_allow.html]]>
+@@#trust-info-url http://www.example.com/why_we_block.html]]>
+@@#trust-info-url http://www.example.com/what_we_allow.html]]>
@@ -794,7 +796,7 @@ actionsfile
@@filterfile default.filter]]>
-@@#filterfile user.filter # User customizations]]>
+@@filterfile user.filter # User customizations]]>
@@ -1007,7 +1009,7 @@ actionsfile
debug 2 # show each connection status
debug 4 # show I/O status
debug 8 # show header parsing
- debug 16 # log all data written to the network into the logfile
+ debug 16 # log all data written to the network
debug 32 # debug force feature
debug 64 # debug regular expression filters
debug 128 # debug redirects
@@ -1017,6 +1019,7 @@ actionsfile
debug 2048 # CGI user interface
debug 4096 # Startup banner and warnings.
debug 8192 # Non-fatal errors
+ debug 32768 # log all data read from the network
@@ -1025,7 +1028,7 @@ actionsfile
A debug level of 1 is informative because it will show you each request
- as it happens. 1, 4096 and 8192 are recommended
+ as it happens. 1, 1024, 4096 and 8192 are recommended
so that you will notice when things go wrong. The other levels are
probably only of interest if you are hunting down a specific problem.
They can produce a hell of an output (especially 16).
@@ -1191,7 +1194,7 @@ actionsfile
Specifies:
- The IP address and TCP port on which Privoxy will
+ The address and TCP port on which Privoxy will
listen for client requests.
@@ -1200,6 +1203,7 @@ actionsfile
Type of value:[IP-Address]:Port
+ [Hostname]:Port
@@ -1213,9 +1217,9 @@ actionsfile
Effect if unset:
- Bind to 127.0.0.1 (localhost), port 8118. This is suitable and recommended for
- home users who run Privoxy on the same machine as
- their browser.
+ Bind to 127.0.0.1 (IPv4 localhost), port 8118. This is suitable and
+ recommended for home users who run Privoxy on
+ the same machine as their browser.
@@ -1231,11 +1235,55 @@ actionsfile
will need to override the default.
- If you leave out the IP address, Privoxy will
- bind to all interfaces (addresses) on your machine and may become reachable
- from the Internet. In that case, consider using access control lists (ACL's, see below), and/or
- a firewall.
+ You can use this statement multiple times to make
+ Privoxy listen on more ports or more
+ IP addresses. Suitable if your operating system does not
+ support sharing IPv6 and IPv4 protocols
+ on the same socket.
+
+
+ If a hostname is used instead of an IP address, Privoxy
+ will try to resolve it to an IP address and if there are multiple, use the first
+ one returned.
+
+
+ If the address for the hostname isn't already known on the system
+ (for example because it's in /etc/hostname), this may result in DNS
+ traffic.
+
+
+ If the specified address isn't available on the system, or if the
+ hostname can't be resolved, Privoxy
+ will fail to start.
+
+
+ IPv6 addresses containing colons have to be quoted by brackets.
+ They can only be used if Privoxy has
+ been compiled with IPv6 support. If you aren't sure if your version
+ supports it, have a look at
+ http://config.privoxy.org/show-status.
+
+
+ Some operating systems will prefer IPv6 to IPv4 addresses even if the
+ system has no IPv6 connectivity which is usually not expected by the user.
+ Some even rely on DNS to resolve localhost which mean the "localhost" address
+ used may not actually be local.
+
+
+ It is therefore recommended to explicitly configure the intended IP address
+ instead of relying on the operating system, unless there's a strong reason not to.
+
+
+ If you leave out the address, Privoxy will bind to all
+ IPv4 interfaces (addresses) on your machine and may become reachable from the
+ Internet and/or the local network. Be aware that some GNU/Linux distributions
+ modify that behaviour without updating the documentation. Check for non-standard
+ patches if your Privoxyversion behaves differently.
+
+
+ If you configure Privoxyto be reachable from the
+ network, consider using access control lists
+ (ACL's, see below), and/or a firewall.
If you open Privoxy to untrusted users, you will
@@ -1243,6 +1291,12 @@ actionsfile
linkend="enable-edit-actions">enable-edit-actions and
enable-remote-toggle
+
+ With the exception noted above, listening on multiple addresses is currently
+ not supported by Privoxy directly.
+ It can be done on most operating systems by letting a packet filter
+ redirect request for certain addresses to Privoxy, though.
+
@@ -1257,6 +1311,16 @@ actionsfile
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
@@ -1611,23 +1675,41 @@ ACLs: permit-access and deny-access
Type of value:
- src_addr[/src_masklen]
- [dst_addr[/dst_masklen]]
+ src_addr[:port][/src_masklen]
+ [dst_addr[:port][/dst_masklen]]
Where src_addr and
- dst_addr are IP addresses in dotted decimal notation or valid
- DNS names, and src_masklen and
+ dst_addr are IPv4 addresses in dotted decimal notation or valid
+ DNS names, port is a port
+ number, and src_masklen and
dst_masklen are subnet masks in CIDR notation, i.e. integer
values from 2 to 30 representing the length (in bits) of the network address. The masks and the whole
destination part are optional.
+
+ If your system implements
+ RFC 3493, then
+ src_addr and dst_addr can be IPv6 addresses delimeted by
+ brackets, port can be a number
+ or a service name, and
+ src_masklen and
+ dst_masklen can be a number
+ from 0 to 128.
+ Default value:Unset
+
+ If no port is specified,
+ any port will match. If no src_masklen or
+ src_masklen is given, the complete IP
+ address has to match (i.e. 32 bits for IPv4 and 128 bits for IPv6).
+
@@ -1676,6 +1758,13 @@ ACLs: permit-access and deny-access
like *.org or partial domain names. If a DNS name resolves to multiple
IP addresses, only the first one is used.
+
+ Some systems allow IPv4 clients to connect to IPv6 server sockets.
+ Then the client's IPv4 address will be translated by the system into
+ IPv6 address space with special prefix ::ffff:0:0/96 (so called IPv4
+ mapped IPv6 address). Privoxy can handle it
+ and maps such ACL addresses automatically.
+
Denying access to particular sites by ACL may have undesired side effects
if the site in question is hosted on a machine which also hosts other sites
@@ -1717,6 +1806,24 @@ ACLs: permit-access and deny-access
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
+
+
@@ -1838,7 +1945,7 @@ ACLs: permit-access and deny-access
denote all URLs.
http_parent[:port]
is the DNS name or IP address of the parent HTTP proxy through which the requests should be forwarded,
- optionally followed by its listening port (default: 8080).
+ optionally followed by its listening port (default: 8000).
Use a single dot (.) to denote no forwarding.
@@ -1864,6 +1971,16 @@ ACLs: permit-access and deny-access
If http_parent is ., then requests are not
forwarded to another HTTP proxy but are made directly to the web servers.
+
+ http_parent can be a
+ numerical IPv6 address (if
+ RFC 3493 is
+ implemented). To prevent clashes with the port delimiter, the whole IP
+ address has to be put into brackets. On the other hand a target_pattern containing an IPv6 address
+ has to be put into angle brackets (normal brackets are reserved for
+ regular expressions already).
+
Multiple lines are OK, they are checked in sequence, and the last match wins.
@@ -1891,6 +2008,24 @@ ACLs: permit-access and deny-access
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]:*> .
+
+
@@ -1962,6 +2097,17 @@ forward-socks4, forward-socks4a and forward-socks5
With forward-socks5 the DNS resolution will happen on the remote server as well.
+
+ socks_proxy and
+ http_parent can be a
+ numerical IPv6 address (if
+ RFC 3493 is
+ implemented). To prevent clashes with the port delimiter, the whole IP
+ address has to be put into brackets. On the other hand a target_pattern containing an IPv6 address
+ has to be put into angle brackets (normal brackets are reserved for
+ regular expressions already).
+
If http_parent is ., then requests are not
forwarded to another HTTP proxy but are made (HTTP-wise) directly to the web servers, albeit through
@@ -1999,7 +2145,7 @@ forward-socks4, forward-socks4a and forward-socks5
- forward-socks4a / 127.0.0.1:9050 .
+ forward-socks5 / 127.0.0.1:9050 .
@@ -2194,6 +2340,11 @@ forward-socks4, forward-socks4a and forward-socks5
@@forwarded-connect-retries 0]]>
+
+
+
+Miscellaneous
+
accept-intercepted-requests
@@ -2410,17 +2561,47 @@ forward-socks4, forward-socks4a and forward-socks5
Effect if unset:
- Connections are not reused.
+ Connections are not kept alive.
Notes:
+
+ This option allows clients to keep the connection to &my-app;
+ alive. If the server supports it, &my-app; will keep
+ the connection to the server alive as well. Under certain
+ circumstances this may result in speed-ups.
+
+
+ By default, &my-app; will close the connection to the server if
+ the client connection gets closed, or if the specified timeout
+ has been reached without a new request coming in. This behaviour
+ can be changed with the connection-sharing option.
+
This option has no effect if Privoxy
has been compiled without keep-alive support.
+
+ Note that a timeout of five seconds as used in the default
+ configuration file significantly decreases the number of
+ connections that will be reused. The value is used because
+ some browsers limit the number of connections they open to
+ a single host and apply the same limit to proxies. This can
+ result in a single website grabbing all the
+ connections the browser allows, which means connections to
+ other websites can't be opened until the connections currently
+ in use time out.
+
+
+ Several users have reported this as a Privoxy bug, so the
+ default value has been reduced. Consider increasing it to
+ 300 seconds or even more if you think your browser can handle
+ it. If your browser appears to be hanging it can't.
+
@@ -2432,7 +2613,187 @@ forward-socks4, forward-socks4a and forward-socks5
-@@keep-alive-timeout 300]]>
+@@keep-alive-timeout 5]]>
+
+
+
+default-server-timeout
+
+
+ Specifies:
+
+
+ Assumed server-side keep-alive timeout if not specified by the server.
+
+
+
+
+ Type of value:
+
+
+ Time in seconds.
+
+
+
+
+ Default value:
+
+ None
+
+
+
+ Effect if unset:
+
+
+ Connections for which the server didn't specify the keep-alive
+ timeout are not reused.
+
+
+
+
+ Notes:
+
+
+ Enabling this option significantly increases the number of connections
+ that are reused, provided the keep-alive-timeout option
+ is also enabled.
+
+
+ While it also increases the number of connections problems
+ when &my-app; tries to reuse a connection that already has
+ been closed on the server side, or is closed while &my-app;
+ is trying to reuse it, this should only be a problem if it
+ happens for the first request sent by the client. If it happens
+ for requests on reused client connections, &my-app; will simply
+ close the connection and the client is supposed to retry the
+ request without bothering the user.
+
+
+ Enabling this option is therefore only recommended if the
+ connection-sharing option
+ is disabled.
+
+
+ It is an error to specify a value larger than the keep-alive-timeout value.
+
+
+ This option has no effect if Privoxy
+ has been compiled without keep-alive support.
+
+
+
+
+ Examples:
+
+
+ default-server-timeout 60
+
+
+
+
+@@#default-server-timeout 60]]>
+
+
+
+connection-sharing
+
+
+ Specifies:
+
+
+ Whether or not outgoing connections that have been kept alive
+ should be shared between different incoming connections.
+
+
+
+
+ Type of value:
+
+
+ 0 or 1
+
+
+
+
+ Default value:
+
+ None
+
+
+
+ Effect if unset:
+
+
+ Connections are not shared.
+
+
+
+
+ Notes:
+
+
+ This option has no effect if Privoxy
+ has been compiled without keep-alive support, or if it's disabled.
+
+
+
+
+ Notes:
+
+
+ Note that reusing connections doesn't necessary cause speedups.
+ There are also a few privacy implications you should be aware of.
+
+
+ If this option is effective, outgoing connections are shared between
+ clients (if there are more than one) and closing the browser that initiated
+ the outgoing connection does no longer affect the connection between &my-app;
+ and the server unless the client's request hasn't been completed yet.
+
+
+ If the outgoing connection is idle, it will not be closed until either
+ Privoxy's or the server's timeout is reached.
+ While it's open, the server knows that the system running &my-app; is still
+ there.
+
+
+ If there are more than one client (maybe even belonging to multiple users),
+ they will be able to reuse each others connections. This is potentially
+ dangerous in case of authentication schemes like NTLM where only the
+ connection is authenticated, instead of requiring authentication for
+ each request.
+
+
+ If there is only a single client, and if said client can keep connections
+ alive on its own, enabling this option has next to no effect. If the client
+ doesn't support connection keep-alive, enabling this option may make sense
+ as it allows &my-app; to keep outgoing connections alive even if the client
+ itself doesn't support it.
+
+
+ You should also be aware that enabling this option increases the likelihood
+ of getting the "No server or forwarder data" error message, especially if you
+ are using a slow connection to the Internet.
+
+
+ This option should only be used by experienced users who
+ understand the risks and can weight them against the benefits.
+
+
+
+
+ Examples:
+
+
+ connection-sharing 1
+
+
+
+
+@@#connection-sharing 1]]>
@@ -2465,7 +2826,279 @@ forward-socks4, forward-socks4a and forward-socks5
Effect if unset:
- A default value of 180 seconds is used.
+ A default value of 300 seconds is used.
+
+
+
+
+ Notes:
+
+
+ The default is quite high and you probably want to reduce it.
+ If you aren't using an occasionally slow proxy like Tor, reducing
+ it to a few seconds should be fine.
+
+
+
+
+ Examples:
+
+
+ socket-timeout 300
+
+
+
+
+@@socket-timeout 300]]>
+
+
+
+max-client-connections
+
+
+ Specifies:
+
+
+ Maximum number of client connections that will be served.
+
+
+
+
+ Type of value:
+
+
+ Positive number.
+
+
+
+
+ Default value:
+
+ None
+
+
+
+ Effect if unset:
+
+
+ Connections are served until a resource limit is reached.
+
+
+
+
+ Notes:
+
+
+ &my-app; creates one thread (or process) for every incoming client
+ connection that isn't rejected based on the access control settings.
+
+
+ If the system is powerful enough, &my-app; can theoretically deal with
+ several hundred (or thousand) connections at the same time, but some
+ operating systems enforce resource limits by shutting down offending
+ processes and their default limits may be below the ones &my-app; would
+ require under heavy load.
+
+
+ Configuring &my-app; to enforce a connection limit below the thread
+ or process limit used by the operating system makes sure this doesn't
+ happen. Simply increasing the operating system's limit would work too,
+ but if &my-app; isn't the only application running on the system,
+ you may actually want to limit the resources used by &my-app;.
+
+
+ If &my-app; is only used by a single trusted user, limiting the
+ number of client connections is probably unnecessary. If there
+ are multiple possibly untrusted users you probably still want to
+ additionally use a packet filter to limit the maximal number of
+ incoming connections per client. Otherwise a malicious user could
+ intentionally create a high number of connections to prevent other
+ users from using &my-app;.
+
+
+ Obviously using this option only makes sense if you choose a limit
+ below the one enforced by the operating system.
+
+
+
+
+ Examples:
+
+
+ max-client-connections 256
+
+
+
+
+@@#max-client-connections 256]]>
+
+
+
+handle-as-empty-doc-returns-ok
+
+
+ Specifies:
+
+
+ The status code Privoxy returns for pages blocked with
+
+ +handle-as-empty-document.
+
+
+
+
+ Type of value:
+
+
+ 0 or 1
+
+
+
+
+ Default value:
+
+ 0
+
+
+
+ Effect if unset:
+
+
+ Privoxy returns a status 403(forbidden) for all blocked pages.
+
+
+
+
+ Effect if set:
+
+
+ Privoxy returns a status 200(OK) for pages blocked with +handle-as-empty-document
+ and a status 403(Forbidden) for all other blocked pages.
+
+
+
+
+ Notes:
+
+
+ This is 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)
+ As the bug has been fixed for quite some time this option should no longer
+ be needed and will be removed in a future release. Please speak up if you
+ have a reason why the option should be kept around.
+
+
+
+
+@@#handle-as-empty-doc-returns-ok 1]]>
+
+
+
+enable-compression
+
+
+ Specifies:
+
+
+ Whether or not buffered content is compressed before delivery.
+
+
+
+
+ Type of value:
+
+
+ 0 or 1
+
+
+
+
+ Default value:
+
+ 0
+
+
+
+ Effect if unset:
+
+
+ Privoxy does not compress buffered content.
+
+
+
+
+ Effect if set:
+
+
+ Privoxy compresses buffered content before delivering it to the client,
+ provided the client supports it.
+
+
+
+
+ Notes:
+
+
+ This directive is only supported if Privoxy has been compiled with
+ FEATURE_COMPRESSION, which should not to be confused with FEATURE_ZLIB.
+
+
+ Compressing buffered content is mainly useful if Privoxy and the
+ client are running on different systems. If they are running on the
+ same system, enabling compression is likely to slow things down.
+ If you didn't measure otherwise, you should assume that it does
+ and keep this option disabled.
+
+
+ Privoxy will not compress buffered content below a certain length.
+
+
+
+
+@@#enable-compression 1]]>
+
+
+
+compression-level
+
+
+ Specifies:
+
+
+ The compression level that is passed to the zlib library when compressing buffered content.
+
+
+
+
+ Type of value:
+
+
+ Positive number ranging from 0 to 9.
+
+
+
+
+ Default value:
+
+ 1
+
+
+
+ Notes:
+
+
+ Compressing the data more takes usually longer than compressing
+ it less or not compressing it at all. Which level is best depends
+ on the connection between Privoxy and the client. If you can't
+ be bothered to benchmark it for yourself, you should stick with
+ the default and keep compression disabled.
+
+
+ If compression is disabled, the compression level is irrelevant.
@@ -2473,12 +3106,23 @@ forward-socks4, forward-socks4a and forward-socks5
Examples:
- socket-timeout 180
+
+ # 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
+
-@@socket-timeout 180]]>
+@@#compression-level 1]]>