How to Install Webmin on Debian 12

Webmin is a web-based dashboard that allows sysadmins to manage Linux and Unix-like systems (especially servers). Webmin allows system administrators to manage user accounts, updating packages, system log files, configuring firewalls, email, database, postfix, etc.

First, check for any pending system updates,

apt update

apt upgrade

Add APT Repository

To install or update Webmin in Debian 12 using APT, Edit /etc/apt/sources.list file and add the following line at the end of the file.
deb http://download.webmin.com/download/repository sarge contrib

Or just run the following command once and it will be added to the sources.list file.

echo "deb http://download.webmin.com/download/repository sarge contrib" >> /etc/apt/sources.list

Requires a dependency package called gnupg installed with the following command:

apt install gnupg

Import and Add Webmin Repository Key.

wget http://www.webmin.com/jcameron-key.asc
apt-key add jcameron-key.asc

Installing Webmin

Install Webmin by running the following command.

apt-get update
apt-get install webmin

Output:

root@server:~# apt-get install webmin
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
webmin is already the newest version (2.021).

Start Webmin

systemctl start webmin

Firewall

If you're running a UFW firewall on the server, you need to allow the port 10000 so you can access the webmin panel remotely.

ufw allow 10000/tcp

Access Webmin, open the URL from your web browser: https://IP_address:10000

Note:

  1. When logging in for the first time, you will see an 'invalid SSL' warning.
  2. Simply click on the 'Advanced' tab and then 'Accept the risk and Continue'.

Login to the Webmin web interface using your root user and password.

First

Once you log in, you will be redirected to the Webmin dashboard.

First