How to Setup Ubuntu with Webmin on Azure/AWS/GCP

To install Webmin on Ubuntu or CentOS and run in any of the cloud platfors (Azure/AWS/GCP), the best way is to deploy the template from the marketplace. It setups Ubuntu or CentOS and automatically installs and fully configures Webmin for you. Click on the links below to deploy to your preferred cloud environment.

Webmin Features

Webmin is a program that simplifies the process of managing a Linux system. Normally you need to manually edit configuration files and run commands to create accounts, set up a web server and manage email forwarding. Webmin lets you perform these tasks and many more through an easy to use web interface and automatically updates all required configuration files for you. This makes the job of administering your system much easier.

 

  • Create, edit and delete Unix Accounts on your system.
  • Export Files and Directories to other systems with the NFS protocol.
  • Set up Disk Quotas to control the amount of space available to users for their files.
  • Install, view and remove Software Packages in RPM and other formats.
  • Change your system’s IP address, DNS Server settings and routing configuration.
  • Set up a Linux Firewall to protect your computer or give hosts on an internal LAN access to the Internet.
  • Create and configure virtual web servers for the Apache Webserver.
  • Manage databases, tables and fields in a MySQL or PostgreSQL Database Server.
  • Share files with Windows systems by configuring Samba Windows File Sharing.

 

Webmin makes the process of creating Unix users, managing the Squid Proxy Server easy, LDAP Server, Mail server, Jabber, postfix mail, proFTPD Server, clustering setup, NFS and more.

Table of Contents

Getting Started with Webmin on Ubuntu Server

Once your Linux server has been deployed, the following links explain how to connect to a Linux VM:

 

 

Once connected and logged in, the following section explains how to access the Webmin portal.

Access Webmin Configuration

Once the server has booted up and you are logged in via SSH terminal, the first step is to update the miniserv.conf file

 

From your SSH terminal run the following command:

Webmin Config on Ubuntu

For Ubuntu Server run the following command:

				
					sudo nano /etc/webmin/miniserv.conf
				
			

Webmin Config on CentOS

For CentOS server run the following command:

				
					sudo vi /etc/webmin/miniserv.conf
				
			

Edit SSL on Webmin Conf

Then scroll down to ‘SSL=1‘ and change it to ‘SSL=0

 

This is so you dont receive SSL errors when accessing the Webmin portal.

For Ubuntu:

Press Ctrl+O to save and then Ctrl+X to exit the config file

 

For CentOS:

Press i to enter insert mode. Change ‘SSL=1‘ to ‘SSL=0‘. Then press esc to exit insert mode. Then type :X to save and exit.

 

Run the following command to restart the Webmin services.

				
					sudo /etc/init.d/webmin restart
				
			

Access Webmin URL

Once you’ve edited the Webmin conf file you can now access the following URLs to access the Webmin portal using the servers IP:

				
					http://PublicIP:10000

Or

http://PrivateIP:10000
				
			

Login using the root user and password.

Change Root User Password

If you want to change the root user password, simply run the following command:

				
					sudo passwd
				
			

Create a new root user account

If you want to create a root user and password, follow this step.

 

Open up your terminal and run the following commands:

 

Use the adduser command to add a new user to your system.

 

Be sure to replace username with the user that you want to create.

Create Root user on Ubuntu

For Ubuntu run the following command to create a new root user account.

				
					sudo adduser username
				
			

Set and confirm the new user’s password at the prompt. A strong password is highly recommended!

 

Follow the prompts to set the new user’s information. It is fine to accept the defaults to leave all of this information blank.

Add new user to SUDO Group

Now you need to add this new user account to the sudo group which will give it root access.  Use the usermod command to add the user to the sudo group.  By default, on Ubuntu, members of the sudo group have sudo privileges.

				
					sudo usermod -aG sudo username
				
			

Create Root user on CentOS

To create a root user on CentOS run the following commands:

				
					sudo adduser username
sudo passwd username
				
			

Add new user to SUDO Group

Use the usermod command to add the user to the sudo group.  Members of the wheel group for CentOS users have sudo privieges.

				
					sudo usermod -aG wheel username
				
			

You can now login to Webmin URL using the new account.

Webmin Support / Documentation

Refer to Webmin documentation on using Webmin on Ubuntu and CentOS:

 

https://doxfer.webmin.com/Webmin/Main_Page

Webmin Firewall Ports

If you have a firewall on your network/cloud infrastructure or Network Security Group in Azure/AWS/GCP you will need to make sure the following ports are open:

 

TCP 10000

 

To setup AWS firewall rules refer to – AWS Security Groups

To setup Azure firewall rules refer to – Azure Network Security Groups

To setup Google GCP firewall rules refer to – Creating GCP Firewalls

Avatar for Andrew Fitzgerald
Andrew Fitzgerald

Cloud Solution Architect. Helping customers transform their business to the cloud. 20 years experience working in complex infrastructure environments and a Microsoft Certified Solutions Expert on everything Cloud

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