yum install pacemaker pcs
passwd hacluster
(Set the same password)
systemctl enable pcsd.service
systemctl start pcsd.service

(On node 1)
psc cluster auth 192.168.0.1 192.168.0.2
(Output)
Username: hacluster
Password:
Error: Unable to communicate with 192.168.0.2
192.168.0.1: Authorized