Install Webmin on Ubuntu

Step 1: Update Ubuntu Package List

1. In the terminal, run the following command to update the package list:

sudo apt update

2. When prompted, enter your administrator password and press Enter.

3. Install the update packages with:

sudo apt upgrade

4. Type Y and press Enter to confirm the update.

5. Install dependency packages to help you manage software repositories by using:

sudo apt install software-properties-common apt-transport-https

6. Type Y and press Enter when prompted to confirm the installation.

Step 2: Enable Webmin Repository

1. Add Webmin's GPG key with:

sudo wget -q http://www.webmin.com/jcameron-key.asc -O- | sudo apt-key add -

2. Manually add the Webmin repository using:

sudo add-apt-repository "deb [arch=amd64] http://download.webmin.com/download/repository sarge contrib"

Step 3: Install Webmin on Ubuntu

1. Start the Webmin installation using:

sudo apt install webmin

2. When prompted, type Y and press Enter to confirm the installation.

3. Once the installation is complete, check the status of the Webmin service:

sudo systemctl status webmin

Another method to confirm the installation is successful is to check the installed version of Webmin:

dpkg -l | grep webmin

Step 4: Configure the Firewall

1. Webmin uses the TCP port 10000 by default. Open this port on your firewall by using:

sudo ufw allow 10000/tcp

2. Reload your firewall for the changes to take effect:

sudo ufw reload

3. Check the status of your firewall to confirm the changes:

sudo ufw status

Step 5: Access Webmin on Ubuntu

1. Set the password for the Webmin root user with:

sudo /usr/share/webmin/changepass.pl /etc/webmin root [new password]

2. Open your Internet browser and enter the following as a web address using your server's IP:

https://[your server's IP]:10000/

You can use local or remote server's IP address.