Network services in RHEL-resolv.conf,network,hosts

1: setting DNS for your server:

# vim /etc/resolv.conf

search example.com

nameserver  172.16.2.121

2:setting a local dns using /etc/hosts

# vim /etc/hosts

IP Address　　　　 Hostname　　　　　　　　　　 Alias

127.0.0.1　　　　　Localhost　　　　　　　　　　Gate.openarch.com

208.164.186.1　　　gate.openarch.com Gate

3:setting hostname for server

# vim /etc/sysconfig/network

NETWORKING=yes

HOSTNAME=StationX.example.com

Gateway=…….

# service network restart

4: Setting DHCP or statics IP

# ifconfig

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

Device=eth0

onboot=yes

Bootproto=DHCP or Static

IPADDR=

Netmask=

gateway=

#ifdown eth0

#ifup eth0