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<div class="dokuwiki export">
<h1><a name="slave" id="slave">Slave</a></h1>
<div class="level1">
<table class="inline">
<tr class="row0 roweven">
<th class="col0">Authentication </th><th class="col1"> Users </th><th class="col2"> Password </th>
</tr>
<tr class="row1 rowodd">
<td class="col0 centeralign"> ✔ </td><td class="col1 centeralign"> ✔ </td><td class="col2"> </td>
</tr>
</table>
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<h2><a name="presentation" id="presentation">Presentation</a></h2>
<div class="level2">
<p>
<acronym title="LemonLDAP::NG">LL::NG</acronym> Slave backend relies on <acronym title="Hyper Text Transfer Protocol">HTTP</acronym> headers to retrieve user login and/or attributes.
</p>
<ul>
<li class="level1"><div class="li"> Authentication: will check user login in a header and create session without prompting any credentials (but will register client <acronym title="Internet Protocol">IP</acronym> and creation date)</div>
</li>
<li class="level1"><div class="li"> Users: collect data transfered in <acronym title="Hyper Text Transfer Protocol">HTTP</acronym> headers by the “master”.</div>
</li>
</ul>
<p>
It allows to put <acronym title="LemonLDAP::NG">LL::NG</acronym>::portal behind another web <acronym title="Single Sign On">SSO</acronym>, or behind a <acronym title="Secure Sockets Layer">SSL</acronym> hardware to delegate <acronym title="Secure Sockets Layer">SSL</acronym> authentication to that hardware.
</p>
</div>
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<h2><a name="configuration" id="configuration">Configuration</a></h2>
<div class="level2">
<p>
In Manager, go in <code>General Parameters</code> > <code>Authentication modules</code> and choose Slave for authentication or users module.
</p>
<p>
Then, go in <code>Slave parameters</code>:
</p>
<ul>
<li class="level1"><div class="li"> <strong>Authentication level</strong>: authentication level for this module.</div>
</li>
<li class="level1"><div class="li"> <strong>Header for user login</strong>: header that contains the user main login</div>
</li>
<li class="level1"><div class="li"> <strong>Master's <acronym title="Internet Protocol">IP</acronym> address</strong>: the <acronym title="Internet Protocol">IP</acronym> addresses of servers which are accredited to authenticate user. This is a security point, to prevent someone to create a session by sending custom headers. You can set one or several <acronym title="Internet Protocol">IP</acronym> addresses, separated by spaces, or let this parameter empty to disable the checking.</div>
</li>
</ul>
<p>
You have then to declare <acronym title="Hyper Text Transfer Protocol">HTTP</acronym> headers exported by the main <acronym title="Single Sign On">SSO</acronym> (in “Variables » Exported Variables”). Example :
</p>
<table class="inline">
<tr class="row0 roweven">
<th class="col0 centeralign"> Key (<acronym title="LemonLDAP::NG">LL::NG</acronym> name) </th><th class="col1 centeralign"> Value (<acronym title="Hyper Text Transfer Protocol">HTTP</acronym> header name) </th>
</tr>
<tr class="row1 rowodd">
<td class="col0 centeralign"> uid </td><td class="col1 centeralign"> Auth-User </td>
</tr>
<tr class="row2 roweven">
<td class="col0 centeralign"> mail </td><td class="col1 centeralign"> User-Email </td>
</tr>
</table>
</div>
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