Deploying Mediawiki

Setup Details

hostname: infrabase1 Network: 10.1.65.0/24 IP Address : 10.1.65.11 Subnet Mask: 255.255.255.0 Gateway: 10.1.65.1 DNS: 8.8.8.8 sudo user: kedar Container: webserver Network: 10.1.65.0/24 IP Address : 10.1.65.107 Subnet Mask: 255.255.255.0 Gateway: 10.1.65.1 DNS: 8.8.8.8 sudo user: kedar Container: db1 Network: 10.1.65.0/24 IP Address : 10.1.65.108 Subnet Mask: 255.255.255.0 Gateway: 10.1.65.1 DNS: 8.8.8.8 sudo user: kedar User PC Details PC type: Desktop OS: Ubuntu Desktop IP Address: 10.1.65.160

Before you proceed

The domain used here is networked.com. This is used only for demonstration and required dns entries for this domain have already been done to the host file to make the domain and any subdomains reachable on the network. This domain may be owned by someone else and we do not know who it is and we are not linked to them. Mediawiki configured for this domain in this howto is not reachable on public IP. If you try networked.com and find any material that may be suitable / unsuitable to you, we are not the owners of the same and we are not responsible for the content.

Introduction

• We shall be creating a mediawiki site with FQDN as: https://wiki.networked.net
• We shall be hosting the site on port number: 443
• We shall be using a self signed SSL certificate
• Host entry to ensure this website is reachable is done in the user PC, in absence of a DNS

Pre-requisites installation

• Log into the webserver and run the below commands

ssh kedar@10.1.65.107
sudo apt install apache2 php7.2 php7.2-curl php7.2-gd php7.2-intl php7.2-json php7.2-mbstring php7.2-mysql php7.2-soap php7.2-xml php7.2-zip libapache2-mod-php7.2 
sudo apt install rsync nano openssl
sudo a2enmod ssl
sudo a2enmod rewrite
sudo systemctl restart apache2
sudo systemctl status apache2

Database Creation

• Database will be created in a mariadb server which is installed into a container created on the host server (infrabase1). Latest mariadb server has been installed and run the below commands after an ssh into the mariadb server.

sudo mysql -u root -p
CREATE DATABASE wiki;
GRANT ALL PRIVILEGES ON wiki.* TO "wiki"@"%" IDENTIFIED BY "123456";
FLUSH PRIVILEGES;
quit;

Create self signed certificates

• Log into the webserver and run the below commands

openssl req -x509 -nodes -days 365 -newkey rsa:2048 -keyout /etc/ssl/private/wiki.key -out /etc/ssl/certs/wiki.crt

• You can use a commercial self signed certificate if you have one or can also use free Lets Encrypt certificate

Download Wiki

• Log into the webserver and run the below commands

cd /var/www/html
sudo mkdir wiki
cd /home/kedar
wget https://releases.wikimedia.org/mediawiki/1.34/mediawiki-1.34.1.tar.gz

Deploy Mediawiki

cd /home/kedar
tar -zxvf mediawiki-1.34.1.tar.gz
cd mediawiki-1.34.1  
sudo rsync -avz . /var/www/html/wiki

• Change the ownership of the wiki folder to apache user

cd /var/www/html
sudo chown -R www-data:www-data wiki/
sudo systemctl restart apache2

• Create virtual host for the website

cd /etc/apache2/sites-available
sudo a2dissite 000-default.conf
sudo a2dissite default-ssl.conf
sudo nano wiki.conf

• Add the below configuration in the wiki.conf file

<IfModule mod_ssl.c>
        <VirtualHost _default_:443>
                ServerName      wiki.networked.net
                ServerAlias     wiki
                ServerAdmin     admin@networked.net
                DocumentRoot /var/www/html/wiki

                ErrorLog ${APACHE_LOG_DIR}/error.log
                CustomLog ${APACHE_LOG_DIR}/access.log combined
                SSLEngine on
                SSLCertificateFile      /etc/ssl/certs/wiki.crt
                SSLCertificateKeyFile /etc/ssl/private/wiki.key
		<FilesMatch "\.(cgi|shtml|phtml|php)$">
                                SSLOptions +StdEnvVars
                </FilesMatch>
                <Directory /usr/lib/cgi-bin>
                                SSLOptions +StdEnvVars
                </Directory>
		</VirtualHost>
</IfModule>

• Enable the site and Restart apache service

sudo a2ensite wiki.conf
sudo sysemctl restart apache2

• Using a browser navigate to https://wiki.networked.com
  • Answer various questions based on some of the steps we have done above like db name, db user, db server etc.
  • Login to wiki using the admin credentials

Conclusion

• We have a working wiki website hosted on an apache web server. Explore the plugins and extensions and create a corporate wiki
• There are many interesting plugins that extend the functionality of mediawiki. Take care while installing the plugins as the installation can break if there is a version mismatch for the mediawiki