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<title>ProFTPD module mod_tls_memcache</title>
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<h2><b>ProFTPD module <code>mod_tls_memcache</code></b></h2>
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<p>
The <code>mod_tls_memcache</code> submodule is contained in the
<code>mod_tls_memcache.c</code> file, and is not compiled by default.
Installation instructions are discussed <a href="#Installation">here</a>.
<p>
This submodule a memcached-based implementation of an external SSL session
cache for use by the <code>mod_tls</code> module's
<a href="mod_tls.html#TLSSessionCache"><code>TLSSessionCache</code></a>
directive. The module also implements a memcached-based implementation of an
external OCSP response cache for the
<a href="mod_tls.html#TLSStaplingCache"><code>TLSStaplingCache</code></a>
directive.
<p>
This product includes software developed by the OpenSSL Project for use in the OpenSSL Toolkit (http://www.openssl.org/).
<p>
This product includes cryptographic software written by Eric Young (eay@cryptsoft.com).
<h2>Author</h2>
<p>
Please contact TJ Saunders <tj <i>at</i> castaglia.org> with any
questions, concerns, or suggestions regarding this module.
<p>
The <code>mod_tls_memcache</code> module supports the "memcache"
string for the <em>type</em> parameter of the
<a href="mod_tls.html#TLSSessionCache"><code>TLSSessionCache</code></a>
configuration directive. The <em>info</em> parameter for
<code>mod_tls_memcache</code> can be empty/blank, indicating a native binary
encoding of the cached data), <i>or</i> it can be "/json", indicating that
the cached data will be encoded using JSON. This means the
<code>TLSSessionCache</code> setting will look like:
<pre>
# Use binary encoding for cached data
TLSSessionCache memcache:
</pre>
or:
<pre>
# Use JSON encoding for cached data
TLSSessionCache memcache:/json
</pre>
If memcache support has not been enabled in your proftpd, this configuration
<b>cannot</b> be used.
<p>
The <code>mod_tls_memcache</code> module also supports the "memcache"
string for the <em>type</em> parameter of the
<a href="mod_tls.html#TLSStaplingCache"><code>TLStaplingCache</code></a>
configuration directive, <i>e.g.</i>:
<pre>
TLSStaplingCache memcache:
</pre>
<p>
<b>Examples</b><br>
<p>
<pre>
<IfModule mod_memcache.c>
MemcacheEngine on
MemcacheServers <i>memcache-servers</i>
</IfModule>
<IfModule mod_tls.c>
...
<IfModule mod_tls_memcache.c>
# Store the data formatted as JSON
TLSSessionCache memcache:/json
TLSStaplingCache memcache:
</IfModule>
</IfModule>
</pre>
<p>
<b>Logging</b><br>
The <code>mod_tls_memcache</code> module supports <a href="../howto/Tracing.html">trace logging</a>, via the module-specific log channels:
<ul>
<li>tls.memcache
</ul>
Thus for trace logging, to aid in debugging, you would use the following in
your <code>proftpd.conf</code>:
<pre>
TraceLog /path/to/ftpd/trace.log
Trace tls.memcache:20
</pre>
This trace logging can generate large files; it is intended for debugging use
only, and should be removed from any production configuration.
<p>
<hr>
<h2><a name="Installation">Installation</a></h2>
The <code>mod_tls_memcache</code> module is distributed with the ProFTPD
source code. Simply follow the normal steps for using third-party modules
in ProFTPD, being sure to include the <code>mod_tls</code> module (on which
<code>mod_tls_memcache</code> depends), <b>and</b> enabling memcache
support:
<pre>
$ ./configure --enable-memcache --with-modules=mod_tls:mod_tls_memcache
$ make
$ make install
</pre>
<p>
Alternatively, if your <code>proftpd</code> was compiled with DSO support, you
can use the <code>prxs</code> tool to build <code>mod_tls_memcache</code> as
a shared module:
<pre>
$ prxs -c -i -d mod_tls_memcache.c
</pre>
<p>
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<font size=2><b><i>
© Copyright 2011-2015 TJ Saunders<br>
All Rights Reserved<br>
</i></b></font>
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