2- Add the following lines
deb http://download.webmin.com/download/repository sarge contrib deb http://webmin.mirror.somersettechsolutions.co.uk/repository sarge contrib
Save and exit the file
Help to edit and save in vi editor
Press I to edit then go to the last line using drop down arrow key then paste the above lines and To save and exit , press [Esc] key and then : (the colon). For example, to exit from vi saving changes, press [Esc], : (colon) and type wq
3- Now in terminal you need to import GPG key
type – wget http://www.webmin.com/jcameron-key.asc
type – sudo apt-key add jcameron-key.asc
4- Update the source list
type – sudo apt-get update
5- Now install webmin
type – sudo apt-get install webmin
Now to access webmin open your browser and enter: http://serveripaddress:10000/
That`s it.