Installation

Get Mediawiki

wget https://releases.wikimedia.org/mediawiki/1.40/mediawiki-1.40.0.tar.gz
tar xf mediawiki-*.tar.gz
sudo mv -T mediawiki-* /var/www/mediawiki

Configuring MariaDB

create database mediawiki;

-- create a new user and grant him access rights
grant index, create, select, insert, update, delete, alter, lock tables
  on mediawiki.* TO 'mediawiki'@'localhost' identified by 'password';

commit;