Update SSLSessionCache section.

<?xml version="1.0"?>

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

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

<!-- $Revision: 1.31 $ -->

<!-- $Revision: 1.32 $ -->

<!--

 Copyright 2002-2004 The Apache Software Foundation

<em>different</em> pre-forked server processes. Here an inter-process cache

helps to avoid unneccessary session handshakes.</p>

<p>

The following two storage <em>type</em>s are currently supported:</p>

The following four storage <em>type</em>s are currently supported:</p>

<ul>

<li><code>none</code>

    <p>

    This is the default and just disables the global/inter-process Session

    Cache. There is no drawback in functionality, but a noticeable speed

    penalty can be observed.</p></li>

    <p>This disables the global/inter-process Session Cache.  This

    will incur a noticeable speed penalty and may cause problems if

    using certain browsers, particularly if client certificates are

    enabled.  This setting is not recommended.</p></li>

<li><code>dbm:/path/to/datafile</code>

    <p>

    This makes use of a DBM hashfile on the local disk to synchronize the

    local OpenSSL memory caches of the server processes. The slight increase

    in I/O on the server results in a visible request speedup for your

    clients, so this type of storage is generally recommended.</p></li>

    <p>This makes use of a DBM hashfile on the local disk to

    synchronize the local OpenSSL memory caches of the server

    processes.  This session cache may suffer reliability issues under

    high load.</p></li>

<li><code>shm:/path/to/datafile</code>[<code>(</code><em>size</em><code>)</code>]

    <p>

    This makes use of a high-performance hash table (approx. <em>size</em> bytes

    in size) inside a shared memory segment in RAM (established via

    <code>/path/to/datafile</code>) to synchronize the local OpenSSL memory

    caches of the server processes. This storage type is not available on all

    platforms.</p></li>

    <p>This makes use of a high-performance cyclic buffer

    (approx. <em>size</em> bytes in size) inside a shared memory

    segment in RAM (established via <code>/path/to/datafile</code>) to

    synchronize the local OpenSSL memory caches of the server

    processes.  This is the recommended session cache.</p></li>

<li><code>dc:UNIX:/path/to/socket</code>

    <p>This makes use of the <a

    href="http://www.distcache.org/">distcache</a> distributed session

    caching libraries.  The argument should specify the location of

    the server or proxy to be used using the distcache address syntax;

    for example, <code>UNIX:/path/to/socket</code> specifies a UNIX

    domain socket (typically a local dc_client proxy);

    <code>IP:server.example.com:9001</code> specifies an IP

    address.</p></li>

</ul>

<example><title>Examples</title>

SSLSessionCache dbm:/usr/local/apache/logs/ssl_gcache_data<br />