Just a short Tutorial today. It’s surprising how many people do not know this. To change the hostname under Linux, open a terminal window. Type the following code.
sudo nano /etc/hosts
and change the text to your new hostname. Changes will take effect on Restart.
The CPU beep is a really irritating thing in Linux distros and sometimes the graphical sound manager does not work when shutting it up.
Fortunately there is a simple way to do it in terminal. In Ubuntu (and distros based upon it) type:
gksudo gedit /etc/modprobe.d/blacklist
In Debian type: