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<h1>Nextcloud 13 Administration Manual</h1>
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<li><a href="../contents.html">Table of Contents</a></li>
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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"><a class="reference internal" href="../configuration_user/index.html">User management</a></li>
<li class="toctree-l1"><a class="reference internal" href="../configuration_files/index.html">File sharing and management</a></li>
<li class="toctree-l1"><a class="reference internal" href="../file_workflows/index.html">File workflows</a></li>
<li class="toctree-l1"><a class="reference internal" href="../configuration_database/index.html">Database configuration</a></li>
<li class="toctree-l1"><a class="reference internal" href="../configuration_mimetypes/index.html">Mimetypes management</a></li>
<li class="toctree-l1 current"><a class="reference internal" href="index.html">Maintenance</a><ul class="current">
<li class="toctree-l2 current"><a class="current reference internal" href="">Backup</a><ul>
<li class="toctree-l3"><a class="reference internal" href="#maintenance-mode">Maintenance mode</a></li>
<li class="toctree-l3"><a class="reference internal" href="#backup-folders">Backup folders</a></li>
<li class="toctree-l3"><a class="reference internal" href="#backup-database">Backup database</a></li>
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<li class="toctree-l2"><a class="reference internal" href="restore.html">Restoring backup</a></li>
<li class="toctree-l2"><a class="reference internal" href="upgrade.html">How to upgrade</a></li>
<li class="toctree-l2"><a class="reference internal" href="update.html">Upgrade via built-in updater</a></li>
<li class="toctree-l2"><a class="reference internal" href="manual_upgrade.html">Upgrade manually</a></li>
<li class="toctree-l2"><a class="reference internal" href="package_upgrade.html">Upgrade via packages</a></li>
<li class="toctree-l2"><a class="reference internal" href="migrating.html">Migrating to a different server</a></li>
<li class="toctree-l2"><a class="reference internal" href="migrating_owncloud.html">Migrating from ownCloud</a></li>
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<div class="section" id="backup">
<h1>Backup<a class="headerlink" href="#backup" title="Permalink to this headline">¶</a></h1>
<p>To backup an Nextcloud installation there are four main things you need to retain:</p>
<ol class="arabic simple">
<li>The config folder</li>
<li>The data folder</li>
<li>The theme folder</li>
<li>The database</li>
</ol>
<div class="section" id="maintenance-mode">
<h2>Maintenance mode<a class="headerlink" href="#maintenance-mode" title="Permalink to this headline">¶</a></h2>
<p><code class="docutils literal"><span class="pre">maintenance:mode</span></code> locks the sessions of logged-in users and prevents new logins in order to prevent inconsistencies of your data. You must run <code class="docutils literal"><span class="pre">occ</span></code> as the HTTP user, like this example on Ubuntu Linux:</p>
<div class="highlight-python"><div class="highlight"><pre>$ sudo -u www-data php occ maintenance:mode --on
</pre></div>
</div>
<p>You may also put your server into this mode by editing <code class="file docutils literal"><span class="pre">config/config.php</span></code>.
Change <code class="docutils literal"><span class="pre">"maintenance"</span> <span class="pre">=></span> <span class="pre">false</span></code> to <code class="docutils literal"><span class="pre">"maintenance"</span> <span class="pre">=></span> <span class="pre">true</span></code>:</p>
<div class="highlight-python"><div class="highlight"><pre><?php
"maintenance" => true,
</pre></div>
</div>
<p>Don’t forget to change it back to <code class="docutils literal"><span class="pre">false</span></code> when you are finished.</p>
</div>
<div class="section" id="backup-folders">
<h2>Backup folders<a class="headerlink" href="#backup-folders" title="Permalink to this headline">¶</a></h2>
<p>Simply copy your config, data and theme folders (or even your whole Nextcloud install and data folder) to a place outside of
your Nextcloud environment. You could use this command:</p>
<div class="highlight-python"><div class="highlight"><pre>rsync -avx nextcloud/ nextcloud-dirbkp_`date +"%Y%m%d"`/
</pre></div>
</div>
</div>
<div class="section" id="backup-database">
<h2>Backup database<a class="headerlink" href="#backup-database" title="Permalink to this headline">¶</a></h2>
<div class="admonition warning">
<p class="first admonition-title">Warning</p>
<p class="last">Before restoring a backup see <a class="reference internal" href="restore.html"><em>Restoring backup</em></a></p>
</div>
<div class="section" id="mysql-mariadb">
<h3>MySQL/MariaDB<a class="headerlink" href="#mysql-mariadb" title="Permalink to this headline">¶</a></h3>
<p>MySQL or MariaDB, which is a drop-in MySQL replacement, is the recommended
database engine. To backup MySQL/MariaDB:</p>
<div class="highlight-python"><div class="highlight"><pre>mysqldump --single-transaction -h [server] -u [username] -p[password] [db_name] > nextcloud-sqlbkp_`date +"%Y%m%d"`.bak
</pre></div>
</div>
</div>
<div class="section" id="sqlite">
<h3>SQLite<a class="headerlink" href="#sqlite" title="Permalink to this headline">¶</a></h3>
<div class="highlight-python"><div class="highlight"><pre>sqlite3 data/owncloud.db .dump > nextcloud-sqlbkp_`date +"%Y%m%d"`.bak
</pre></div>
</div>
</div>
<div class="section" id="postgresql">
<h3>PostgreSQL<a class="headerlink" href="#postgresql" title="Permalink to this headline">¶</a></h3>
<div class="highlight-python"><div class="highlight"><pre>PGPASSWORD="password" pg_dump [db_name] -h [server] -U [username] -f nextcloud-sqlbkp_`date +"%Y%m%d"`.bak
</pre></div>
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