Hmm, need to check why MariaDB got installed
Posted by jpluimers on 2015/07/06
The zypper dup has installed MariaDB; now I need to figure out which dependency did this, as I’m not happy with the update message:
Message from package mariadb: You just installed MySQL server for the first time. You can start it using: rcmysql start During first start empty database will be created for your automatically. PLEASE REMEMBER TO SET A PASSWORD FOR THE MariaDB root USER ! To do so, start the server, then issue the following commands: '/usr/bin/mysqladmin' -u root password 'new-password' '/usr/bin/mysqladmin' -u root -h misibook password 'new-password' Alternatively you can run: '/usr/bin/mysql_secure_installation' which will also give you the option of removing the test databases and anonymous user created by default. This is strongly recommended for production servers.
–jeroen
The Wiert Corner - irregular stream of stuff 
Kevin G. McCoy said
MariaDB is simply the more-open-source version of Oracle MySQL. Lots of Linux/Windows apps need a database and use MySQL:or the interchangeable MariaDB. Both MySQL and MariaDB are open source, but MySQL has a lot of limitations on commercial use and distribution. The Mantis bug tracker can use MySQL/MariaDB.
Anyway, since it was a new install, the messages are warning you that the root password is set to the default. Not a good thing on a public server but no big deal on a private one with no exposure to the WAN. Change the root password and create one or more non-root accounts for your software to use. The new accounts should be limited to the specific schemas they need to access.
jpluimers said
That’s the thing: I tracked down the install history and this was not a new install.
I kicked it out.