Changing Hostname

How to change a computer's hostname.

Change the oldhostname to a newhostname in the following files:

sudo nano -w /etc/hosts
sudo nano -w /etc/hostname

After done, changing the /etc/hostname and /etc/hosts, you need to restart the hostname service.

sudo /etc/init.d/hostname.sh stop
sudo /etc/init.d/hostname.sh start

Now, logout and log back in.