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<!DOCTYPE modulesynopsis SYSTEM "/style/modulesynopsis.dtd">

<?xml-stylesheet type="text/xsl" href="/style/manual.en.xsl"?>

<modulesynopsis metafile="mod_ident.xml.meta">

<name>mod_ident</name>

<description>RFC 1413 ident lookups</description>

<status>Extension</status>

<sourcefile>mod_ident.c</sourcefile>

<identifier>ident_module</identifier>

<compatibility>Available in Apache 2.1 and later</compatibility>

<summary>

<p>This module queries an <a href="http://www.ietf.org/rfc/rfc1413.txt"

>RFC 1413</a> compatible daemon on a remote host to look up the owner of

a connection.</p>

</summary>

<seealso><module>mod_log_config</module></seealso>

<directivesynopsis>

<name>IdentityCheck</name>

<description>Enables logging of the RFC 1413 identity of the remote

user</description>

<syntax>IdentityCheck On|Off</syntax>

<default>IdentityCheck Off</default>

<contextlist><context>server config</context><context>virtual host</context>

<context>directory</context></contextlist>

<compatibility>Moved out of core in Apache 2.1</compatibility>

<usage>

<p>This directive enables <a href="http://www.ietf.org/rfc/rfc1413.txt"

>RFC 1413</a>-compliant logging of the remote user name for each

connection, where the client machine runs identd or something similar.

This information is logged in the access log using the <code>%...l</code>

<a href="mod_log_config.html#formats">format string</a>.</p>

<note>

The information should not be trusted in any way except for

rudimentary usage tracking.

</note>

<p>Note that this can cause serious latency problems accessing

your server since every request requires one of these lookups

to be performed. When firewalls or proxy servers are involved,

each lookup might possibly fail and add a latency duration as

defined by the <directive module="mod_ident"

>IdentityCheckTimeout</directive> directive to each hit. So in

general this is not very useful on public servers accessible from

the Internet.</p>

</usage>

</directivesynopsis>

<directivesynopsis>

<name>IdentityCheckTimeout</name>

<description>Determines the timeout duration for ident requests</description>

<syntax>IdentityCheckTimeout <var>seconds</var></syntax>

<default>IdentityCheckTimeout 30</default>

<contextlist><context>server config</context><context>virtual host</context>

<context>directory</context></contextlist>

<usage>

<p>This directive specifies the timeout duration of an ident

request. The default value of 30 seconds is recommended by <a

href="http://www.ietf.org/rfc/rfc1413.txt">RFC 1413</a>, mainly because

of possible network latency. However, you may want to adjust the

timeout value according to your local network speed.</p>

</usage>

</directivesynopsis>

</modulesynopsis>