You might have read it hundreds and thousands of time but let me start my opening with a big BIG Thank you for all the effort and enthusiasm you bring into this project. You really make the web a better place. So even though i am a absolute virgin here and actually i just described a few hours ago - in the name of the community and the amountless serveradmins who wouldn't be able to run such an well thought thru architecture without your help...i would like to say THANK YOU! I am in a very awkward situation where i have to set up a secure and reliable server within a very short time. That made me spend a lot of time typing on my keyboard and trying different solutions. The very first candidate was a PPA for nginx and google ps (GitHub - serveradminsh/installers) which looked promising but turned out to be...well....let's stop the sentence here. Digging a bit into ansible confirmed my plan to not use a automated system and risking the possibility to not be able to dive in and fix things if necessary. So i moved on and got to meet a solution describing itself as being perfect (perfectrootserver.de). And yes, the concept is quite respectable...but the very limited docs and active community just didn't feel good having in mind that one might need a helping hand one day. So i took my luggage and surfed (literraly) the night away. Tired and about to lay my head Google said..."hey wait, look at this..". That was 18 hours ago when i first met CENTMIN MOD and showed my appreciation by reading your articles, tutorials and the forum....concentrated and interested. And it paid out! I was able to set up an environment, launched a site and got rewarded from Googles Pagespeed test with 98/100. Not bad for my first date with CENTOMIN MOD. Proof: CENTMIN MOD - PS.png But then things started to turn around in a frustrating direction. Why? Well...not sure, either because i really should go to bed or i am just not understanding it. In your tuts you talk about and offer MariaDB/MySQL-mixed snippets. Menu number 11 offers MariaDB-delicatessen but the SSH installation messages seem to not really like this combination and therefor i get warnings and errors making me dizzy. "Failed to start mysql.service: Unit not found."" "382 packages excluded due to repository priority protections" "Removing mariadb-libs.x86_64 1:5.5.52-1.el7 - u due to obsoletes from installed MariaDB-shared-10.0.31-1.el7.centos.x86_64" and many more... Obviously there seems to be a MySql dependency and even after reading your tuts and external tuts (https://mariadb.com/kb/en/mariadb/mariadb-installation-version-10121-via-rpms-on-centos-7/)...i just can't help myself. This circumstance brings up the (HY000/2002)-issue: pma.png ...and puts me in a situation where i am asking in the kindest way possible....please George, tell me the magic. How did or do you get MariaDB running?