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change hostname

 
Tonatiuh
Super Advisor

change hostname

Red Hat Enterprise Linux 4.8

How can I change the hostname of the server once it has been installed?
6 REPLIES
Gokul Chandola
Trusted Contributor

Re: change hostname

Hi,
Go to System Administration, there are option to change Hostname etc.

Regards,
Gokul Chandola
There is always some scope for improvment.
JKytsi
Honored Contributor

Re: change hostname

RedHat based system use the file /etc/sysconfig/network to read the saved hostname at system boot. This is set using the init script /etc/rc.d/rc.sysinit

/etc/sysconfig/network NETWORKING=yes HOSTNAME="plain.domainname.com" GATEWAY="192.168.0.1" GATEWAYDEV="eth0" FORWARD_IPV4="yes"So in order to preserve your change on system reboot edit this file and enter the appropriate name using the HOSTNAME variable.

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Matti_Kurkela
Honored Contributor

Re: change hostname

If you change the hostname by editing /etc/sysconfig/network, also remember to edit /etc/hosts.

The system must be able to resolve its own name using /etc/hosts when it's starting up and the network interfaces have not been activated yet.

MK
MK
Yogesh M Puranik
Valued Contributor

Re: change hostname

Hi,

After Changing the above mentioned files,dont forget to restart the netwok/reboot the server.

#service network restart

Rgds
Yogesh

Hakki Aydin Ucar
Honored Contributor

Re: change hostname

Edit network at address:

vi /etc/sysconfig/network

NETWORKING=yes
HOSTNAME=your_host_name
Wilfred Chau_1
Respected Contributor

Re: change hostname

temporary:
as root:
echo "newhostname" > /proc/sys/kernel/hostname

permanent:
as root:
system-config-network
under dns, change to your new hostname
then save your changes