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<section id="migrating-to-a-different-server">
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<h1>Migrating to a different server<a class="headerlink" href="#migrating-to-a-different-server" title="Link to this heading"></a></h1>
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<p>If the need arises F7cloud can be migrated to a different server. A typical
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use case would be a hardware change or a migration from the virtual Appliance
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to a physical server. All migrations have to be performed with F7cloud
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offline and no accesses being made. Online migration is supported by
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F7cloud only when implementing industry standard clustering and HA solutions
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before F7cloud is installed for the first time.</p>
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<p>To start let us be specific about the use case. A configured F7cloud
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instance runs reliably on one machine. For some reason (e.g. more powerful
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machine is available but a move to a clustered environment not yet needed)
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the instance needs to be moved to a new machine. Depending on the size of
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the F7cloud instance the migration might take several hours. As a
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prerequisite it is assumed that the end users reach the F7cloud instance
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via a virtual hostname (a <code class="docutils literal notranslate"><span class="pre">CNAME</span></code> record in DNS) which can be pointed at
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the new location. It is also assumed that the authentication method
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(e.g. LDAP) remains the same after the migration.</p>
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<div class="admonition warning">
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<p class="admonition-title">Warning</p>
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<p>At NO TIME any changes to the <strong>ORIGINAL</strong> system are required
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<strong>EXCEPT</strong> putting F7cloud into maintenance mode.</p>
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<p>This ensures, should anything unforeseen happen you can go
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back to your existing installation and provide your users
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with a running F7cloud while debugging the problem.</p>
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</div>
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<ol class="arabic">
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<li><p>Set up the new machine with the desired OS, install and configure the
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Web server as well as PHP for F7cloud (e.g. permissions or file upload size
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limits) and make sure the PHP version matches F7cloud supported
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configuration and all relevant PHP extensions are installed. Also set up
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the database and make sure it is a F7cloud supported configuration. If
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your original machine was installed recently just copying that base
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configuration is a safe best practice.</p></li>
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<li><p>On the original machine then stop F7cloud. First activate the
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maintenance mode. After waiting for 6-7 minutes for all sync clients to
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register the server is in maintenance mode stop the application and/or
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Web server that serves F7cloud.</p></li>
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<li><p>Create a dump from the database and copy it to the new machine. There
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import it in the database (See <a class="reference internal" href="backup.html"><span class="doc">Backup</span></a> and <a class="reference internal" href="restore.html"><span class="doc">Restoring backup</span></a>).</p></li>
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<li><p>Copy all files from your F7cloud instance, the F7cloud program files, the
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data files, the log files and the configuration files, to the new
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machine (See <a class="reference internal" href="backup.html"><span class="doc">Backup</span></a> and <a class="reference internal" href="restore.html"><span class="doc">Restoring backup</span></a>). The data files should keep
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their original timestamp (can be done by using <code class="docutils literal notranslate"><span class="pre">rsync</span></code> with <code class="docutils literal notranslate"><span class="pre">-t</span></code> option)
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otherwise the clients will re-download all the files after the migration.
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Depending on the original installation method and the OS the files are
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located in different locations. On the new system make sure to pick the
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appropriate locations. If you change any paths, make sure to adapt the paths
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in the F7cloud config.php file.</p>
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<div class="admonition note">
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<p class="admonition-title">Note</p>
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<p>This step might take several hours, depending on your installation.</p>
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</div>
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<div class="admonition warning">
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<p class="admonition-title">Warning</p>
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<p>Changing the location of the data directory might cause a corruption of relations
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in the database and is not supported.</p>
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</div>
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</li>
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<li><p>Check the config.php file of the <strong>ORIGINAL</strong> system to see if it has
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the <code class="docutils literal notranslate"><span class="pre">data-fingerprint</span></code> set to a non-empty value. If this is the case, make
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sure to also run the <code class="docutils literal notranslate"><span class="pre">maintenance:data-fingerprint</span></code> command on the <strong>NEW</strong>
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system, similarly to how it is required when performing a backup restoration (See <a class="reference internal" href="restore.html"><span class="doc">Restoring backup</span></a> for details).</p></li>
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<li><p>While still having F7cloud in maintenance mode (confirm!) and <strong>BEFORE</strong>
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changing the <code class="docutils literal notranslate"><span class="pre">CNAME</span></code> record in the DNS start up the database, Web server /
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application server on the new machine and point your web browser to the
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migrated F7cloud instance. Confirm that you see the maintenance mode
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notice, that a logfile entry is written by both the Web server and
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F7cloud and that no error messages occur. Then take F7cloud out of
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maintenance mode and repeat. Log in as admin and confirm normal function
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of F7cloud.</p></li>
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<li><p>Change the <code class="docutils literal notranslate"><span class="pre">CNAME</span></code> entry in the DNS to point your users to the new
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location.</p></li>
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</ol>
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<p>© Copyright 2016-2026 F7cloud GmbH and F7cloud contributors.</p>
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