After Centos 5.x / RHEL 5.x & 6.0 Installation

# system-config-securitylevel-tui

#  chkconfig netfs off

#  chkconfig nfslock off

#  chkconfig portmap off

#  chkconfig cups off

#  chkconfig hidd off

#  chkconfig bluetooth off

#  chkconfig kudzu off

#  chkconfig iptables off

#  chkconfig ip6tables off

#  chkconfig restorecond off

#  chkconfig rpcidmapd off

#  chkconfig rpcgssd off

#  chkconfig hidd off

#  chkconfig isdn off

#  chkconfig mcstrans off

#  chkconfig setroubleshoot off

IP Address Configuration

#  vi /etc/sysconfig/network-scripts/ifcfg-eth0

Default Gateway & Hostname Configuration

#  vi /etc/sysconfig/network

NETWORKING=yes

NETWORKING_IPV6=yes

HOSTNAME=ABIEMOK

GATEWAY=202.110.101.1

DNS Configuration

# vi /etc/resolv.conf

nameserver     202.110.101.88

nameserver     202.110.101.89  << add new DNS IP

Restart Network Services

#  /etc/init.d/network restart

Restart Server to complete the configuration

#  init 6