Showing posts with label Change hostname of Linux machine without Reboot. Show all posts
Showing posts with label Change hostname of Linux machine without Reboot. Show all posts

Wednesday, June 26, 2013

Change hostname of your Linux machine without Reboot

Change hostname of your Linux machine without Reboot :

You must fill hostname while installation. It is your machine name.

If you want a definition of host-name or you want to understand what exactly is it, you should click here .

But if you know about it, you should read ahead.

You must have seen your host name in terminal after symbol '@'.
But if you want to know your host-name using command line, you should run
# hostname
If you want to change it, follow this.

If you are using CentOS, Fedora or Redhat

1) Open file /etc/sysconfig/network
2) Now change HOSTNAME=old-host-name to HOSTNAME=new-host-name
3) Save the file
4) Restart network using
# service network restart
Now open terminal, you will see the host name has been changed after symbol '@'
If you are not satisfied enough. Run command
# hostname

If you are using Debian or Ubuntu

1) Open file /etc/hostname
2) Change the old hostname into new hostname.
3) Save the file.
OR
Run the following command
# echo new-hostname > /etc/hostname
Now open terminal, you will see the host name has been changed after symbol '@'
If you are not satisfied enough. Run command
# hostname