I phased out and removed the CentOS 7.5 WordPress servers. The backup performance was over 2x as slow as Ubuntu 16.04 using VEEAM. I will keep this page for my CentOS notes for other users out there.
I upgraded from 5.5.56 to 10.3.8 by creating /etc/yum.repos.d/MariaDB.repo
# MariaDB 10.3 CentOS repository list – created 2018-07-16 19:32 UTC
name = MariaDB
baseurl = http://yum.mariadb.org/10.3/centos7-amd64
Check out my MariaDB pages. When going to 10.3, you really need to go to 10.1 and I give a trick to get mysql-upgrade working.
Re: BIOS choice. I was on 4.18.11 because of a report of a serious bug in 4.18.10 and earlier. The other day I upgraded to 4.19 becausee it is LTSR for 6 years with 4.18.11 was 2 years.
I created an alias called CentVer for rpm -q centos-release:
alias CentVer=”rpm -q centos-release”
I created a file server with SAMBA share for a second CentOS 7 server.
As of 2.15.2018, I have phased out my CentOS7 WP server. The server was slow to backup compared to Ubuntu in VEAAM. It was more complex putting new SSL Certificates on. I created two new WP Servers in Ubuntu 16.04.5. I migrated all the web sites to them from this server.