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<div class="dokuwiki export">
<h1><a name="sql_session_backend" id="sql_session_backend">SQL session backend</a></h1>
<div class="level1">
<p>
<acronym title="Structured Query Language">SQL</acronym> session backend can be used with many <acronym title="Structured Query Language">SQL</acronym> databases such as:
</p>
<ul>
<li class="level1"><div class="li"> <a href="http://search.cpan.org/perldoc?Apache::Session::MySQL" class="urlextern" title="http://search.cpan.org/perldoc?Apache::Session::MySQL" rel="nofollow">MySQL</a></div>
</li>
<li class="level1"><div class="li"> <a href="http://search.cpan.org/perldoc?Apache::Session::Postgres" class="urlextern" title="http://search.cpan.org/perldoc?Apache::Session::Postgres" rel="nofollow">PostgreSQL</a></div>
</li>
<li class="level1"><div class="li"> <a href="http://search.cpan.org/perldoc?Apache::Session::Oracle" class="urlextern" title="http://search.cpan.org/perldoc?Apache::Session::Oracle" rel="nofollow">Oracle</a></div>
</li>
<li class="level1"><div class="li"> <a href="http://search.cpan.org/perldoc?Apache::Session::Informix" class="urlextern" title="http://search.cpan.org/perldoc?Apache::Session::Informix" rel="nofollow">Informix</a></div>
</li>
<li class="level1"><div class="li"> <a href="http://search.cpan.org/perldoc?Apache::Session::Sybase" class="urlextern" title="http://search.cpan.org/perldoc?Apache::Session::Sybase" rel="nofollow">Sybase</a></div>
</li>
<li class="level1"><div class="li"> ….</div>
</li>
</ul>
</div>
<!-- SECTION "SQL session backend" [1-468] -->
<h2><a name="setup" id="setup">Setup</a></h2>
<div class="level2">
</div>
<!-- SECTION "Setup" [469-487] -->
<h3><a name="prepare_the_database" id="prepare_the_database">Prepare the database</a></h3>
<div class="level3">
<p>
Your database must have a specific table to host sessions. Here are some examples for main databases servers.
</p>
</div>
<h4><a name="mysql" id="mysql">MySQL</a></h4>
<div class="level4">
<p>
Create a database if necessary:
</p>
<pre class="code">
mysqladmin create lemonldapng
</pre>
<p>
Create sessions table:
</p>
<pre class="code file sql"><span class="kw1">CREATE</span> <span class="kw1">TABLE</span> sessions <span class="br0">(</span>
id char<span class="br0">(</span>32<span class="br0">)</span> <span class="kw1">NOT</span> <span class="kw1">NULL</span> <span class="kw1">PRIMARY</span> <span class="kw1">KEY</span><span class="sy0">,</span>
a_session blob
<span class="br0">)</span>;</pre>
</div>
<h4><a name="postgresql" id="postgresql">PostgreSQL</a></h4>
<div class="level4">
<p>
Create user and role:
</p>
<pre class="code">
su - postgres
createuser lemonldap-ng -P
</pre>
<pre class="code">
Entrez le mot de passe pour le nouveau rôle : <PASSWORD>
Entrez-le de nouveau : <PASSWORD>
Le nouveau rôle est-il un super-utilisateur ? (o/n) n
Le nouveau rôle doit-il être autorisé à créer des bases de données ? (o/n) n
Le nouveau rôle doit-il être autorisé à créer de nouveaux rôles ? (o/n) n
</pre>
<p>
Create database:
</p>
<pre class="code">
createdb -O lemonldap-ng lemonldap-ng
</pre>
<p>
Create table:
</p>
<pre class="code">
psql -h 127.0.0.1 -U lemonldap-ng -W lemonldap-ng
</pre>
<pre class="code">
Mot de passe pour l'utilisateur lemonldap-ng :
[...]
lemonldap-ng=> create table sessions ( id char(32) not null primary key, a_session text );
lemonldap-ng=> q
</pre>
</div>
<!-- SECTION "Prepare the database" [488-1607] -->
<h3><a name="manager" id="manager">Manager</a></h3>
<div class="level3">
<p>
Go in the Manager and set the session module (for example <a href="http://search.cpan.org/perldoc?Apache::Session::Postgres" class="urlextern" title="http://search.cpan.org/perldoc?Apache::Session::Postgres" rel="nofollow">Apache::Session::Postgres</a> for PostgreSQL) in <code>General parameters</code> » <code>Sessions</code> » <code>Session storage</code> » <code>Apache::Session module</code> and add the following parameters (case sensitive):
</p>
<table class="inline">
<tr class="row0 roweven">
<th class="col0 centeralign" colspan="3"> Required parameters </th>
</tr>
<tr class="row1 rowodd">
<th class="col0 centeralign"> Name </th><th class="col1 centeralign"> Comment </th><th class="col2 centeralign"> Example </th>
</tr>
<tr class="row2 roweven">
<td class="col0 centeralign"> <strong>DataSource</strong> </td><td class="col1"> The <a href="http://search.cpan.org/perldoc?DBI" class="urlextern" title="http://search.cpan.org/perldoc?DBI" rel="nofollow">DBI</a> string </td><td class="col2"> dbi:Pg:dbname=sessions;host=10.2.3.1 </td>
</tr>
<tr class="row3 rowodd">
<td class="col0 centeralign"> <strong>UserName</strong> </td><td class="col1"> The database username </td><td class="col2"> lemonldapng </td>
</tr>
<tr class="row4 roweven">
<td class="col0 centeralign"> <strong>Password</strong> </td><td class="col1"> The database password </td><td class="col2"> mysuperpassword </td>
</tr>
<tr class="row5 rowodd">
<td class="col0 centeralign"> <strong>Commit</strong> </td><td class="col1"> Required for PostgreSQL </td><td class="col2"> 1 </td>
</tr>
</table>
<p>
You must read the man page corresponding to your database (<a href="http://search.cpan.org/perldoc?Apache::Session::MySQL" class="urlextern" title="http://search.cpan.org/perldoc?Apache::Session::MySQL" rel="nofollow">Apache::Session::MySQL</a>, …) to learn more about parameters. You must also install the database connector (<a href="http://search.cpan.org/perldoc?DBD::Oracle" class="urlextern" title="http://search.cpan.org/perldoc?DBD::Oracle" rel="nofollow">DBD::Oracle</a>, <a href="http://search.cpan.org/perldoc?DBD::Pg" class="urlextern" title="http://search.cpan.org/perldoc?DBD::Pg" rel="nofollow">DBD::Pg</a>,…)
</p>
<p>
<p><div class="notetip">
For MySQL, you need to set additional parameters:
</p>
<ul>
<li class="level1"><div class="li"> LockDataSource</div>
</li>
<li class="level1"><div class="li"> LockUserName</div>
</li>
<li class="level1"><div class="li"> LockPassword</div>
</li>
</ul>
<p>
</div></p>
</p>
<p>
If you choose to use MySQL, read <a href="../../documentation/1.3/performances.html#apachesession_performances" class="wikilink1" title="documentation:1.3:performances">how to increase MySQL performances</a>.
</p>
</div>
<!-- SECTION "Manager" [1608-2858] -->
<h2><a name="security" id="security">Security</a></h2>
<div class="level2">
<p>
Restrict network access to the database.
</p>
<p>
You can also use different user/password for your servers by overriding parameters <code>globalStorage</code> and <code>globalStorageOptions</code> in lemonldap-ng.ini file.
</p>
</div>
<!-- SECTION "Security" [2859-] --></div><!-- closes <div class="dokuwiki export">-->
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