1. Run below command to edit the source file:
sudo nano /etc/apt/sources.list
2. Add this line into the end:
deb http://download.webmin.com/download/repository sarge contrib
Save the changes.
3. Now execute command to download and install the key:
wget -q http://www.webmin.com/jcameron-key.asc -O- | sudo apt-key add -
4. After that, you can always use below commands to install the latest version of Webmin:
sudo apt-get update
sudo apt-get install webmin
Finally in your client’s web browser go to the webmin login page https://ubuntu-serverip:10000
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