Referensi
http://www.ubuntuforums.org/showthread.php?t=195093
http://invaleed.wordpress.com/2006/06/19/howto-install-webmin-ubuntu-dapper-drake-606/

Webmin is an excellent web-based interface to your Unix based machines. There are no webmin packages in the latest release "Dapper". This is how I installed webmin on my Dapper server… Install SSH

#sudo apt-get install ssh

2. Enable the universe and multiverse repositories in the /etc/apt/sources.list (https://wiki.ubuntu.com/AddingRepositoriesCliHowto)

3. To make this easier use a ssh client like Putty (Win32) or a Term on another machine that has a GUI and copy / paste these commands or you can just re-type them…

Below is the source I just happened to use. If it is not working go to: http://prdownloads.sourceforge.net/webadmin/webmin-1.270.tar.gz and find a working mirror.

#wget http://easynews.dl.sourceforge.net/sourceforge/webadmin/webmin-1.270.tar.gz

#gzip -cd webmin-1.270.tar.gz | tar xvf -

#sudo apt-get install libauthen-pam-perl libnet-ssleay-perl libpam-runtime openssl perl perl-modules

#cd webmin*

#sudo ./setup.sh

Basically just hit enter and choose SSL and the auto start the service at boot
Web server port (default 10000): (Feel Free to change this)
Login name (default admin):
Login password: AReallyGoodONE
Password again: AReallyGoodONE
Use SSL (y/n): y
Start Webmin at boot time (y/n): y

Now you can login with the user/password that you set at the https://IpAddressOfYourMachine:10000