• While I was working on the active/active iSCSI cluster, I began wondering if the same technology and concepts could be used to create a pair of active/active Apache/MySQL servers.  Turns out it can.  The primary issue to keep in mind is that in this setup, the potential exists for running 2 instances of both Apache and MySQL (actually MariaDB which is a drop-in replacement) on the same system.  So long as you have unique sockets (IP address + port) and the resources on each system to do so, that shouldn't be a problem.

  • In my last post, I discussed a way to use SSSD to authenticate MySQL logins against Active Directory.  I thought I would expand on that by seeing if I could configure Apache to secure a section of a website by only allowing an active directory user access via SSSD.  It turns out that too wasn't all that difficult. So let's get going!

  • In this post I’m going to take a look at a two-node CentOS 7 Apache active/passive cluster using mostly packages in the Red Hat cluster suite.  In case you don’t already know, CentOS is created by making use of the source packages provided by Red Hat Enterprise Linux (RHEL). 

  • In my last post, I went through the steps to build an active/passive Apache web hosting cluster on CentOS 7.  Building on the same platform, I’m going to add replicated block storage to our cluster by utilizing DRBD

  • If you have been following along, in my last two posts we successfully set up an active/passive Apache cluster on CentOS 7 and then we added shared storage. The storage I chose was local storage. In this post, I'll be replacing that with iSCSI shared storage and adding MySQL (actually MariaDB).