The Installation Wizard


If you are planning to use the installation wizard, we strongly encourage you to protect it, through some form of password authentication, or access control. If the installer is left unprotected when exposed to the public internet, there is the possibility that a malicious actor could finish the installation and block you out — or worse. So please ensure that only you — or someone from your organization — can access the web installer.

Quick Start

When the ownCloud prerequisites are fulfilled and all ownCloud files are installed, the last step to completing the installation is running the Installation Wizard. This involves just three steps:

  1. Point your web browser to http://<your-owncloud-domain>

  2. Enter your desired administrator’s username and password

  3. Click Finish Setup

Installation wizard

You’re now finished and can start using your new ownCloud server. Of course, there is much more that you can do to set up your ownCloud server for best performance and security. In the following sections we will cover important installation and post-installation steps.

Detailed Guide

This section provides a more detailed guide to the installation wizard. Specifically, it is broken down into three steps:

Installation Configuration Options

Click Storage and Database to expose additional installation configuration options for your ownCloud data directory and to select the database respectively configure the access.


The data directory for ownCloud can be configured to be outside of your webroot. This can be done in two ways. Either by defining the path here or when installing the ownCloud files - see the Script Guided Installation. When defining here, a setting in your config.php file will be adopted. When e.g. linking during installing the physical files, the config.php setting regarding the data directory stays default.

ownCloud’s data directory must be exclusive to ownCloud and not be modified manually by any other process or user.

It is best to configure your data directory location at installation, as it is difficult to move after installation. You may put it anywhere; in this example is it located in /var/oc_data. This directory must already exist, and must be owned by your Webserver user user.

Database Setup By ownCloud

Your database and PHP connectors must be installed before you run the Installation Wizard.

After you enter your administrative login for your database, the installer creates a special database user with privileges limited to the ownCloud database.

Following this, ownCloud needs only this special ownCloud database user and drops the aministrative database login you used before. This new user is named from your ownCloud admin user, with an oc_ prefix, and given a random password. The ownCloud database user and password are written into config.php:

For MySQL/MariaDB:

'dbuser' => 'oc_dbadmin',
'dbpassword' => 'pX65Ty5DrHQkYPE5HRsDvyFHlZZHcm',

For PostgreSQL:

'dbuser' => 'oc_postgres',
'dbpassword' => 'pX65Ty5DrHQkYPE5HRsDvyFHlZZHcm',

Click Finish setup, and you’re ready to start using your new ownCloud server.

Post-Installation Steps

For hardened security ownCloud recommends setting the permissions on your ownCloud directories as strictly as possible, and for proper server operations. This should be done immediately after the initial installation and before running the setup.

Your HTTP user must own the config/, data/, apps/ respectively the apps-external/ directories so that you can configure ownCloud, create, modify and delete your data files, and install apps via the ownCloud Web interface.

You can find your HTTP user in your HTTP server configuration files, or you can use label-phpinfo (Look for the User/Group line).

  • The HTTP user and group in Debian/Ubuntu is www-data.

  • The HTTP user and group in Fedora/CentOS is apache.

  • The HTTP user and group in Arch Linux is http.

  • The HTTP user in openSUSE is wwwrun, and the HTTP group is www.

When using an NFS mount for the data directory, do not change its ownership from the default. The simple act of mounting the drive will set proper permissions for ownCloud to write to the directory. Changing ownership as above could result in some issues if the NFS mount is lost.

The easy way to set the correct permissions is to use the scripts provided in Script Guided Installation