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# Manual Installation on Linux

Installing ownCloud on Linux from our Open Build Service packages is the preferred method (see Preferred Installation Method). These are maintained by ownCloud engineers, and you can use your package manager to keep your ownCloud server up-to-date.

Note

Enterprise customers should refer to Installing & Upgrading ownCloud Enterprise Edition

If there are no packages for your Linux distribution, or you prefer installing from the source tarball, you can setup ownCloud from scratch using a classic LAMP stack (Linux, Apache, MySQL/MariaDB, PHP). This document provides a complete walk-through for installing ownCloud on Ubuntu 14.04 LTS Server with Apache and MariaDB, using the ownCloud .tar archive.

- Prerequisites
- Install the Required Packages
- Configure Apache Web Server
- Enable SSL
- Run the Installation Wizard
- Set Strong Directory Permissions
- SELinux
- php.ini
- PHP-FPM
- Other Web Servers

Note

Admins of SELinux-enabled distributions such as CentOS, Fedora, and Red Hat Enterprise Linux may need to set new rules to enable installing ownCloud. See SELinux for a suggested configuration.

## Prerequisites

The ownCloud tar archive contains all of the required third-party PHP libraries. As a result, no extra ones are, strictly, necessary. However, ownCloud does require that PHP has a set of extensions installed, enabled, and configured.

This section lists both the required and optional PHP extensions. If you need further information about a particular extension, please consult the relevant section of the extensions section of the PHP manual.

If you are using a Linux distribution, it should have packages for all the required extensions. You can check the presence of a module by typing `php -m | grep -i <module_name>`. If you get a result, the module is present.

### Required

#### PHP Version

PHP >= 5.6 (ideally 7.0 or above)

#### PHP Extensions

Name | Description
--- | ---
Ctype | For character type checking
cURL | Used for aspects of HTTP user authentication
DOM | For operating on XML documents through the DOM API
GD | For creating and manipulating image files in a variety of different image formats, including GIF, PNG, JPEG, WBMP, and XPM.
HASH Message | For working with message digests (hash).
Digest Framework |
iconv | For working with the iconv character set conversion facility.
intl | Increases language translation performance and fixes sorting of non-ASCII characters
JSON | For working with the JSON data-interchange format.
libxml | This is required for the _DOM_, _libxml_, _SimpleXML_, and _XMLWriter_ extensions to work. It requires that libxml2, version 2.7.0 or higher, is installed.
Multibyte String | For working with multibyte character encoding schemes.
OpenSSL | For symmetric and asymmetric encryption and decryption, PBKDF2, PKCS7, PKCS12, X509 and other crypto operations.
PDO | This is required for the pdo_msql function to work.
Phar | For working with PHP Archives (.phar files).
POSIX | For working with UNIX POSIX functionality.
SimpleXML | For working with XML files as objects.
XMLWriter | For generating streams or files of XML data.
Zip | For reading and writing ZIP compressed archives and the files inside them.
Zlib | For reading and writing gzip (.gz) compressed files.

Tip

The Phar, OpenSSL, and cUrl extensions are mandatory if you want to use Make to setup your ownCloud environment, prior to running either the web installation wizard, or the command line installer.

#### Database Extensions

Name | Description
--- | ---
pdo_mysql | For working with MySQL & MariaDB.
pgsql | For working with PostgreSQL. It requires PostgreSQL 9.0 or above.
sqlite | For working with SQLite. It requires SQLite 3 or above. This is, usually, not recommended, for performance reasons.

### Required For Specific Apps

Name | Description
--- | ---
ftp | For working with FTP storage
sftp | For working with SFTP storage
imap | For IMAP integration
ldap | For LDAP integration
smbclient | For SMB/CIFS integration

Note

SMB/Windows Network Drive mounts require the PHP module smbclient version 0.8.0+; see SMB/CIFS.

### Optional

Extension | Reason
--- | ---
Bzip2 | Required for extraction of applications
Fileinfo | Highly recommended, as it enhances file analysis performance
Mcrypt | Increases file encryption performance
OpenSSL | Required for accessing HTTPS resources
imagick | Required for creating and modifying images and preview thumbnails

### Recommended

#### For Specific Apps

Extension | Reason
--- | ---
Exif | For image rotation in the pictures app
GMP | For working with arbitrary-length integers

#### For Server Performance

For enhanced server performance consider installing one of the following cache extensions:

- apcu
- memcached
- redis (>= 2.2.6+, required for transactional file locking)

See Memory Caching to learn how to select and configure a memcache.

#### For Preview Generation

- avconv or ffmpeg
- OpenOffice or LibreOffice

#### For Command Line Processing

Extension | Reason
--- | ---
PCNTL | Enables command interruption by pressing `ctrl-c`

Note

You don’t need the WebDAV module for your Web server (i.e. Apache’s `mod_webdav`), as ownCloud has a built-in WebDAV server of its own, SabreDAV. If `mod_webdav` is enabled you must disable it for ownCloud. (See Configure Apache Web Server for an example configuration.)

### For MySQL/MariaDB

The InnoDB storage engine is required, and MyISAM is not supported, see: MySQL / MariaDB storage engine.

## Install the Required Packages

### On Ubuntu 16.04 LTS Server

On a machine running a pristine Ubuntu 16.04 LTS server, install the required and recommended modules for a typical ownCloud installation, using Apache and MariaDB, by issuing the following commands in a terminal:

    apt install -y apache2 mariadb-server libapache2-mod-php7.0 \
        php7.0-gd php7.0-json php7.0-mysql php7.0-curl \
        php7.0-intl php7.0-mcrypt php-imagick \
        php7.0-zip php7.0-xml php7.0-mbstring

The remaining steps are analogous to the installation on Ubuntu 14.04 as shown below.

### On Ubuntu 14.04 LTS Server

On a machine running a pristine Ubuntu 14.04 LTS server, install the required and recommended modules for a typical ownCloud installation, using Apache and MariaDB, by issuing the following commands in a terminal:

    apt-get install -y apache2 mariadb-server libapache2-mod-php5 \
      php5-gd php5-json php5-mysql php5-curl \
      php5-intl php5-mcrypt php5-imagick

libapache2-mod-php5 provides the following PHP extensions:

> `bcmath bz2 calendar Core ctype date dba dom ereg exif fileinfo filter ftp gettext hash iconv libxml mbstring mhash openssl pcre Phar posix Reflection session shmop SimpleXML soap sockets SPL standard sysvmsg sysvsem sysvshm tokenizer wddx xml xmlreader xmlwriter zip zlib`

If you are planning on running additional apps, keep in mind that you might require additional packages. See Prerequisites for details.

Note

During the installation of the MySQL/MariaDB server, you will be prompted to create a root password. Be sure to remember your password as you will need it during ownCloud database setup.

#### Additional Extensions

    apt-get install -y php-apcu php-redis redis-server \
      php7.0-ldap php-smbclient

### RHEL (RedHat Enterprise Linux) 7.2

#### Required Extensions

    # Enable the RHEL Server 7 repository
    subscription-manager repos --enable rhel-server-rhscl-7-eus-rpms

    # Install the required packages
    yum install httpd mariadb-server php55 php55-php \
      php55-php-gd php55-php-mbstring php55-php-mysqlnd

#### Optional Extensions

    yum install https://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm \
      php-pecl-apcu redis php-pecl-redis php55-php-ldap

### SLES (SUSE Linux Enterprise Server) 12

#### Required Extensions

    zypper install apache2 apache2-mod_php5 php5-gd php5-json php5-curl \
      php5-intl php5-mcrypt php5-zip php5-zlib

#### Optional Extensions

    zypper install php5-ldap

##### APCu

We are not aware of any officially supported APCu package for SLES 12. However, if you want or need to install it, then we suggest the following steps:

    wget http://download.opensuse.org/repositories/server:/php:/extensions/SLE_12_SP1/ server:php:extensions.repo -O /etc/zypp/repos.d/memcached.repo
    zypper refresh
    zypper install php5-APCu

##### Redis

The latest versions of Redis servers have shown to be incompatible with SLES 12. Therefore it is currently recommended to download and install version 2.2.7 or a previous release from: https://pecl.php.net/package/redis. Keep in mind that version 2.2.5 is the minimum version which ownCloud supports.

## Install ownCloud

Now download the archive of the latest ownCloud version:

- Go to the ownCloud Download Page.

- Go to Download ownCloud Server > Download > Archive file for server owners and download either the tar.bz2 or .zip archive.

- This downloads a file named owncloud-x.y.z.tar.bz2 or owncloud-x.y.z.zip (where x.y.z is the version number).

- Download its corresponding checksum file, e.g. owncloud-x.y.z.tar.bz2.md5, or owncloud-x.y.z.tar.bz2.sha256.

- Verify the MD5 or SHA256 sum:

      md5sum -c owncloud-x.y.z.tar.bz2.md5 < owncloud-x.y.z.tar.bz2
      sha256sum -c owncloud-x.y.z.tar.bz2.sha256 < owncloud-x.y.z.tar.bz2
      md5sum  -c owncloud-x.y.z.zip.md5 < owncloud-x.y.z.zip
      sha256sum  -c owncloud-x.y.z.zip.sha256 < owncloud-x.y.z.zip

- You may also verify the PGP signature:

      wget https://download.owncloud.org/community/owncloud-x.y.z.tar.bz2.asc
      wget https://owncloud.org/owncloud.asc
      gpg --import owncloud.asc
      gpg --verify owncloud-x.y.z.tar.bz2.asc owncloud-x.y.z.tar.bz2

- Now you can extract the archive contents. Run the appropriate unpacking command for your archive type:

      tar -xjf owncloud-x.y.z.tar.bz2
      unzip owncloud-x.y.z.zip

- This unpacks to a single `owncloud` directory. Copy the ownCloud directory to its final destination. When you are running the Apache HTTP server, you may safely install ownCloud in your Apache document root:

      cp -r owncloud /path/to/webserver/document-root

  where `/path/to/webserver/document-root` is replaced by the document root of your Web server:

      cp -r owncloud /var/www

On other HTTP servers, it is recommended to install ownCloud outside of the document root.

## Configure Apache Web Server

On Debian, Ubuntu, and their derivatives, Apache installs with a useful configuration, so all you have to do is create a `/etc/apache2/sites-available/owncloud.conf` file with these lines in it, replacing the Directory and other file paths with your own file paths:

    Alias /owncloud "/var/www/owncloud/"

    <Directory /var/www/owncloud/>
      Options +FollowSymlinks
      AllowOverride All

     <IfModule mod_dav.c>
      Dav off
     </IfModule>

     SetEnv HOME /var/www/owncloud
     SetEnv HTTP_HOME /var/www/owncloud

    </Directory>

Then create a symlink to `/etc/apache2/sites-enabled`:

    ln -s /etc/apache2/sites-available/owncloud.conf /etc/apache2/sites-enabled/owncloud.conf

### Additional Apache Configurations

- For ownCloud to work correctly, we need the module `mod_rewrite`. Enable it by running:

      a2enmod rewrite

  Additional recommended modules are `mod_headers`, `mod_env`, `mod_dir` and `mod_mime`:

      a2enmod headers
      a2enmod env
      a2enmod dir
      a2enmod mime

- You must disable any server-configured authentication for ownCloud, as it uses Basic authentication internally for DAV services. If you have turned on authentication on a parent folder (via, e.g., an `AuthType Basic` directive), you can disable the authentication specifically for the ownCloud entry. Following the above example configuration file, add the following line in the `<Directory` section

      Satisfy Any

- When using SSL, take special note of the `ServerName`. You should specify one in the server configuration, as well as in the `CommonName` field of the certificate. If you want your ownCloud to be reachable via the internet, then set both of these to the domain you want to reach your ownCloud server.

- Now restart Apache

      service apache2 restart

- If you’re running ownCloud in a sub-directory and want to use CalDAV or CardDAV clients make sure you have configured the correct Service discovery URLs.

### Multi-Processing Module (MPM)

Apache prefork has to be used. Don’t use a threaded `MPM` like `event` or `worker` with `mod_php`, because PHP is currently not thread safe.

## Enable SSL

Note

You can use ownCloud over plain HTTP, but we strongly encourage you to use SSL/TLS to encrypt all of your server traffic, and to protect user’s logins and data in transit.

Apache installed under Ubuntu comes already set-up with a simple self-signed certificate. All you have to do is to enable the `ssl` module and the default site. Open a terminal and run:

    a2enmod ssl
    a2ensite default-ssl
    service apache2 reload

Note

Self-signed certificates have their drawbacks - especially when you plan to make your ownCloud server publicly accessible. You might want to consider getting a certificate signed by a commercial signing authority. Check with your domain name registrar or hosting service for good deals on commercial certificates.

## Run the Installation Wizard

After restarting Apache, you must complete your installation by running either the Graphical Installation Wizard or on the command line with the `occ` command. To enable this, temporarily change the ownership on your ownCloud directories to your HTTP user (see Set Strong Directory Permissions to learn how to find your HTTP user):

    chown -R www-data:www-data /var/www/owncloud/

Note

Admins of SELinux-enabled distributions may need to write new SELinux rules to complete their ownCloud installation; see SELinux.

To use `occ` see Command Line Installation. To use the graphical Installation Wizard see The Installation Wizard.

Warning

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

## Set Strong Directory Permissions

After completing the installation, you must immediately set the directory permissions in your ownCloud installation as strictly as possible for stronger security. After you do so, your ownCloud server will be ready to use.

Note

For further information on improving the quality of your ownCloud installation, please see the Configuration Notes & Tips guide.

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