Manual:Running MediaWiki on Debian or Ubuntu

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Installation guidesManual:Installation guide
FreeBSDManual:Running MediaWiki on FreeBSD
GNU/LinuxManual:Running MediaWiki on Linux
- ALT LinuxManual:Running MediaWiki on ALT Linux
- Arch LinuxManual:Running MediaWiki on Arch Linux
- DamnsmalllinuxManual:Running MediaWiki on Damnsmalllinux
- DebianManual:Running MediaWiki on Debian GNU/Linux
- FedoraManual:Running MediaWiki on Fedora
- GentooManual:Running MediaWiki on Gentoo Linux
- MandrivaManual:Running MediaWiki on Mandriva
- Red Hat Enterprise LinuxManual:Running MediaWiki on Red Hat Linux
- SlackwareManual:Running MediaWiki on Slackware Linux
- UbuntuManual:Running MediaWiki on Ubuntu
Mac OS XManual:Running MediaWiki on Mac OS X
NetWareManual:Running MediaWiki on NetWare
SolarisManual:Running MediaWiki on Solaris
- Solaris 11 / opensolarisManual:Running MediaWiki on Solaris 11 / opensolaris
- Solaris 10Manual:Running MediaWiki on Solaris 10
WindowsManual:Running MediaWiki on Windows
- Windows Server 2016Manual:Installing MediaWiki on Windows Server 2016
- Windows Server 2008Manual:Installing MediaWiki on Windows Server 2008
- Windows Server 2003Manual:Installing MediaWiki on Windows Server 2003
- Streamlined GuideManual:Streamlined Windows Install Guide
- Simple Windows/Apache GuideManual:Simple Windows Apache Installation
on a stickManual:Wiki on a stick
- MoWeS PortableManual:Installing on MoWeS Portable (Windows)
- Uniform ServerManual:Installation on Uniform Server (Windows)
- XAMPPManual:Installing MediaWiki on XAMPP
Sourceforge.netManual:Running MediaWiki on Sourceforge.net
This page documents how to install MediaWiki using the release tarballs. If you want to use system packages, see User:Legoktm/Packages.

This page explains how to install MediaWiki on a Debian or Ubuntu GNU/Linux server. The instructions below refer to Debian, but unless otherwise noted also apply to Ubuntu.

This installation procedure requires knowledge of issuing commands from a terminal (e.g. installing applications) and using a text editor (e.g. graphical: gedit, kate; text: nano, emacs, vi).

When text editing is required it can be carried out on the graphical desktop by pressing Alt-F2 and typing

    gksudo gedit filename

Alternatively, editing can be done from a terminal

    sudo nano filename

Of course, kate could be used instead of gedit or vi instead of nano.

Step-By-Step

Ensure Debian is up-to-date

Double check that Debian is up-to-date by running:

sudo apt-get update
sudo apt-get upgrade

Install LAMP Stack

Ubuntu Server Edition makes LAMP (Apache, PHP, and MySQL) available for installation during the install process. During the installation step, make sure you choose to install a LAMP server. Alternately, you can install all of these packages from a standard installation using these commands:

Note Note: Ubuntu Xenial and Debian Stretch include PHP 7.0, and renamed many packages from "php5" to plain "php". In addition, some PHP modules are now in separate packages (xml, mbstring).

sudo apt-get install apache2 mysql-server php php-mysql libapache2-mod-php php-xml php-mbstring

Note Note: Ubuntu Trusty and Debian Jessie include PHP 5, and use "php5" in most (but not all) packages.

sudo apt-get install apache2 mysql-server php5 php5-mysql libapache2-mod-php5

Optional useful packages

These packages are not necessary but may be useful, depending on the installation:

Name Package Description
Alternative PHP Cache php-apcu Modern MediaWiki versions will automatically take advantage of this being installed for improved performance.
PHP Unicode normalization php-intl or php5-intl MediaWiki will fallback to a slower PHP implementation if not available.
ImageMagick imagemagick Image thumbnailing.
Inkscape inkscape Alternative means of SVG thumbnailing, than ImageMagick. Sometimes it will render SVGs better if originally created in Inkscape.
PHP GD library php-gd or php5-gd Alternative to ImageMagick for image thumbnailing.
PHP command-line php-cli or php5-cli Ability to run PHP commands from the command line, which is useful for debugging and running maintenance scripts.

You can install any of the above with sudo apt-get install packagename.

Get MediaWiki

This can be done from a browser or by

    cd Downloads
    wget https://releases.wikimedia.org/mediawiki/1.28/mediawiki-1.28.0.tar.gz
  • extract in your Web directory
tar -xvzf /pathtofile/mediawiki-*.tar.gz
sudo mkdir /var/lib/mediawiki
sudo mv mediawiki-*/* /var/lib/mediawiki

Configure MySQL

Regular setup

Note Note: This step is not necessary if you were prompted to create a mysql root password during MySQL installation.

First, set up a mysql root password. Remember not to use same password for system root and mysql root. Make sure that you do the following command after a space so that bash (the command-line shell) will not add it to your command history.

 mysqladmin -u root password "enter the new password here"
Warning Warning: Remember this user (root) and password because you will need them when you configure MediaWiki.

Secure setup

Consider running mysql_secure_installation .

from main page:
This program enables you to improve the security of your MySQL installation in the following ways:
  • You can set a password for root accounts.
  • You can remove root accounts that are accessible from outside the local host.
  • You can remove anonymous-user accounts.
  • You can remove the test database (which by default can be accessed by all users, even anonymous users), and privileges that permit anyone to access databases with names that start with test_.
    mysql_secure_installation

Optional: Configure PHP

These steps are optional and can be done post-installation. MediaWiki will still work without these changes.

Edit your PHP configuration file, php.ini. On Ubuntu Trusty and Debian Jessie, it is located at /etc/php5/apache2/php.ini.

On Ubuntu Xenial and Debian Stretch (PHP 7), it is located at /etc/php/7.0/apache2/php.ini.

Maximum upload file size

Assuming that various files are going to be uploaded to the Wiki as content, the limit on the maximum size of an upload has to be adjusted. About one-half way down is the File Uploads section. Change:

 
upload_max_filesize = 2M

to at least 20M. You may have to adjust this again in the future if you want bigger uploads.

Memory limit

Some PHP scripts require a lot of memory to run. To increase the maximum amount of memory a script can use, page down to about 21%, and change the following entry, if found, from

memory_limit = 8M

to

memory_limit = 128M

If it is already set to 128M or more, leave it as is.


Configure MediaWiki

Navigate your browser to http://localhost/mediawiki (for certain installations it may be http://localhost/mediawiki/config or http://wiki.hostname.com/config instead) and following the procedure given.

If this gives a 404 error then this technique may work:

cd /var/www/html
sudo ln -s /var/lib/mediawiki mediawiki
  • Pay close attention for "Checking environment..." in MediaWiki installation script.

This can solve a lot of problems by specifically identifying the source of any errors. Fill out the configuration form and continue.

Under Database Config, you may change the database name and DB username to new values, but you must turn on "Use superuser account", name:

debian-sys-maint

giving the mysql root password you configured earlier.

The configuration process will prompt you to download a LocalSettings.php that must be saved to the parent directory of the new wiki. The configuration page will give the exact directory/filename that must be moved:

 sudo mv ~/Downloads/LocalSettings.php /var/lib/mediawiki/

And navigate your browser to http://localhost/mediawiki (or http://server_ip_address/mediawiki or http://server_ip_address/mediawiki/index.php) to see your new wiki.

Done! You now have a working Wiki

Additional wiki configuration

General information

Mediawiki is configured by the LocalSettings.php file, usually found in /var/lib/mediawiki. Manual:LocalSettings.php has detailed information that may be useful. The following are changes that appear to be universally helpful

To edit LocalSettings.php use

gksudo gedit /var/lib/mediawiki/LocalSettings.php

or from a terminal

sudo nano /var/lib/mediawiki/LocalSettings.php

File uploads

See Manual:Configuring file uploadsManual:Configuring file uploads.

See Manual:$wgLogoManual:$wgLogo.

MediaWiki extensions

The current tarball for Mediawiki comes with a package of 15 or so of the most popular extensions, but there are literally hundreds more.

Instructions on how to enable extensions can be found at Manual:Extensions#Installing an extensionManual:Extensions#Installing an extension.

Pretty URLs

To use /wiki/* instead of /wiki/index.php/* on Debian, follow the recommended short URL guide using '/mediawiki' as the script path instead of '/w' and placing the rewrites in /etc/apache2/conf-enabled/mediawiki.conf.

See also