Host Name Change on Oracle Linux6 – 64bit:

How to change Host name without starting - Oracle Linux 6

·         Login in to Unixbox with root

#login to root

$ su

·         #to view Current Hostname

$ hostname

obiee.oracle

·         View Current network

$cat /etc/sysconfig/network

NETWORKING=yes

HOSTNAME=obiee.oracle

NOZEROCONF=yes

·         Edit current network with new host name

$ vi /etc/sysconfig/network

Update with new host name

·         View Current network after edit

cat /etc/sysconfig/network

NETWORKING=yes

HOSTNAME=oracle.obiee

NOZEROCONF=yes

·         restart the network service for permanent update, I have two connections, its not required to have

$ service network restart

Shutting down loopback interface:                          [  OK  ]

Bringing up loopback interface:                            [  OK  ]

Bringing up interface Auto_Ethernet:  Active connection state: activating

Active connection path: /org/freedesktop/NetworkManager/ActiveConnection/3

state: activated

Connection activated

                                                           [  OK  ]

Bringing up interface Auto_eth3:  Active connection state: activated

Active connection path: /org/freedesktop/NetworkManager/ActiveConnection/4

                                                           [  OK  ]

# important to update host file with new host name, if not your applications will not communicate with new hostname

·         View current host file configurations

$ cat /etc/hosts

127.0.0.1 obiee.oracle obiee

192.168.56.101           obieedb.oracledb obieedbdb

::1   localhost localhost.localdomain

·         edit host file with new host name

$ vi /etc/hosts

# update with new changes

#After changes

$cat /etc/hosts

127.0.0.1 oracle.obiee sudheer

192.168.56.101           obieedb.oracledb obieedbdb

::1   localhost localhost.localdomain

·         Restart network

          $service network restart

          $hostname

oracle.obiee