Red Hat 6 IP, Client DNS configuration

I have a Red Hat Enterprise 6 .... Setup a static ip manually with proper entries under ... /etc/hosts, /etc/sysconfig/network, /etc/sysconfig/network-scripts/ifcfg-eth0,  and /etc/resolv.conf files. I am able to ssh to the system, but I can't access internet. I noticed that entries under /etc/resolv.conf are removed in Red Hat 6 after I restart network services.. any suggestions?