To install Webmin via apt-get you will have to add it to your repository:
sudo nano /etc/apt/sources.list
Go to the end and add this to the file:
deb http://download.webmin.com/download/repository sarge contrib
deb http://webmin.mirror.somersettechsolutions.co.uk/repository sarge contrib
Save the file. Ctrl-X, Yes, Enter.
After performing the above actions, you need to get the GPG key the repository is signed with. So for that type in the following commands:
apt-key add jcameron-key.asc
After adding the GPG key you need to update the source.list:
sudo apt-get update
Now you can install Webmin by typing:
sudo apt-get install webmin
Or alternatively you can try downloading the actual .deb file:
This will download the .deb file on to the system, then you should:
dpkg --install webmin_1.750_all.deb
This will install Webmin on your system.
Login to Webmin
Open up the browser and type in you IP address with as following:
You will get a warning for the SSL certificate, you may just proceed ignoring that warning. After you have navigated to the above URL you will get the following login page:
Log in with root user name and password.