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<h1>Nextcloud 13 Administration Manual</h1>
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<li class="toctree-l1"><a class="reference internal" href="../index.html">Introduction</a></li>
<li class="toctree-l1"><a class="reference internal" href="../release_notes.html">Release notes</a></li>
<li class="toctree-l1"><a class="reference internal" href="../installation/index.html">Installation</a></li>
<li class="toctree-l1"><a class="reference internal" href="../configuration_server/index.html">Server configuration</a></li>
<li class="toctree-l1 current"><a class="reference internal" href="index.html">User management</a><ul class="current">
<li class="toctree-l2"><a class="reference internal" href="user_configuration.html">User management</a></li>
<li class="toctree-l2"><a class="reference internal" href="reset_admin_password.html">Resetting a lost admin password</a></li>
<li class="toctree-l2"><a class="reference internal" href="reset_user_password.html">Resetting a user password</a></li>
<li class="toctree-l2"><a class="reference internal" href="user_password_policy.html">User password policy</a></li>
<li class="toctree-l2"><a class="reference internal" href="two_factor-auth.html">Two factor authentication</a></li>
<li class="toctree-l2 current"><a class="current reference internal" href="">User authentication with IMAP, SMB, and FTP</a><ul>
<li class="toctree-l3"><a class="reference internal" href="#imap">IMAP</a></li>
<li class="toctree-l3"><a class="reference internal" href="#smb">SMB</a></li>
<li class="toctree-l3"><a class="reference internal" href="#ftp">FTP</a></li>
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<li class="toctree-l2"><a class="reference internal" href="user_auth_ldap.html">User authentication with LDAP</a></li>
<li class="toctree-l2"><a class="reference internal" href="user_auth_ldap_cleanup.html">LDAP user cleanup</a></li>
<li class="toctree-l2"><a class="reference internal" href="user_auth_ldap_api.html">The LDAP configuration API</a></li>
<li class="toctree-l2"><a class="reference internal" href="user_provisioning_api.html">User provisioning API</a></li>
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<div class="section" id="user-authentication-with-imap-smb-and-ftp">
<h1>User authentication with IMAP, SMB, and FTP<a class="headerlink" href="#user-authentication-with-imap-smb-and-ftp" title="Permalink to this headline">¶</a></h1>
<p>You may configure additional user backends
in Nextcloud’s configuration <code class="file docutils literal"><span class="pre">config/config.php</span></code> using the following
syntax:</p>
<div class="highlight-python"><div class="highlight"><pre><?php
"user_backends" => array (
0 => array (
"class" => ...,
"arguments" => array (
0 => ...
),
),
),
</pre></div>
</div>
<div class="admonition note">
<p class="first admonition-title">Note</p>
<p class="last">A non-blocking or correctly configured SELinux setup is needed
for these backends to work. Please refer to the <a class="reference internal" href="../installation/selinux_configuration.html#selinux-config-label"><span>SELinux configuration</span></a>.</p>
</div>
<p>Currently the “External user support” (user_external) app, which you need to
enable first (See <a class="reference internal" href="../installation/apps_management_installation.html"><em>Installing and managing apps</em></a>)
provides the following user backends:</p>
<div class="section" id="imap">
<h2>IMAP<a class="headerlink" href="#imap" title="Permalink to this headline">¶</a></h2>
<p>Provides authentication against IMAP servers</p>
<ul class="simple">
<li><strong>Class:</strong> OC_User_IMAP</li>
<li><strong>Arguments:</strong> a mailbox string as defined <a class="reference external" href="http://www.php.net/manual/en/function.imap-open.php">in the PHP documentation</a></li>
<li><strong>Dependency:</strong> php-imap (See <a class="reference internal" href="../installation/source_installation.html"><em>Installation on Linux</em></a>)</li>
<li><strong>Example:</strong></li>
</ul>
<div class="highlight-python"><div class="highlight"><pre><?php
"user_backends" => array (
0 => array (
"class" => "OC_User_IMAP",
"arguments" => array (
0 => '{imap.gmail.com:993/imap/ssl}'
),
),
),
</pre></div>
</div>
</div>
<div class="section" id="smb">
<h2>SMB<a class="headerlink" href="#smb" title="Permalink to this headline">¶</a></h2>
<p>Provides authentication against Samba servers</p>
<ul class="simple">
<li><strong>Class:</strong> OC_User_SMB</li>
<li><strong>Arguments:</strong> the samba server to authenticate against</li>
<li><strong>Dependency:</strong> PHP smbclient module or smbclient (see
<a class="reference internal" href="../configuration_files/external_storage/smb.html"><em>SMB/CIFS</em></a>)</li>
<li><strong>Example:</strong></li>
</ul>
<div class="highlight-python"><div class="highlight"><pre><?php
"user_backends" => array (
0 => array (
"class" => "OC_User_SMB",
"arguments" => array (
0 => 'localhost'
),
),
),
</pre></div>
</div>
</div>
<div class="section" id="ftp">
<h2>FTP<a class="headerlink" href="#ftp" title="Permalink to this headline">¶</a></h2>
<p>Provides authentication against FTP servers</p>
<ul class="simple">
<li><strong>Class:</strong> OC_User_FTP</li>
<li><strong>Arguments:</strong> the FTP server to authenticate against</li>
<li><strong>Dependency:</strong> php-ftp (See <a class="reference internal" href="../installation/source_installation.html"><em>Installation on Linux</em></a>)</li>
<li><strong>Example:</strong></li>
</ul>
<div class="highlight-python"><div class="highlight"><pre><?php
"user_backends" => array (
0 => array (
"class" => "OC_User_FTP",
"arguments" => array (
0 => 'localhost'
),
),
),
</pre></div>
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<li class="next">
<a href="user_auth_ldap.html" title="Next Chapter: User authentication with LDAP"><span class="glyphicon glyphicon-chevron-right visible-sm"></span><span class="hidden-sm">User authentication with LDAP »</span>
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