Quick HOWTO: Pacemaker Cluster on Redhat Linux - Enable Web GUI Interface

  
You will notice that your PCS web interface is not working after your pacemaker cluster installation. Because it is not enabled by default. Here is the steps to enable it.

cd /usr/lib/pcsd
vi pcsd.rb
search for "DISABLE_GUI=true"
edit that line to "DISABLE_GUI=false"
service pcsd restart

Now you will be able to access the pacemaker web interface as below:

https://<yourpacemakerclusterserver>:2224