Rocks Cluster iptables
I needed to modify the iptables to allow connections on some extra tcp ports.
I edited the /etc/sysconfig/iptables file using vim. The extra lines added are shown below:-
# http and https is allowed for all nodes on the public subnet
-A INPUT -m state --state NEW -p tcp --dport 9618 -j ACCEPT
-A INPUT -m state --state NEW -p tcp --dport 9614 -j ACCEPT
The iptables service was restarted using the command /sbin/service iptables restart.