Webmin is a control panel for hosting websites, just like cPanel, but with a nice interface. It is an open source, free system configuration application used for managing UNIX like systems. It has a rich and powerful web based user interface  and is used to administrate the server along with all the popular applications like Apache, BIND, Squid Proxy etc. Webmin is available for almost all popular Unix based operating systems including CentOS, Ubuntu, Debian, SUSE, BSD etc. It is used to manage services such as Disk managemet, User administration, Network, Iptables (Firewall), Cron, DNS, Apache, File sharing and more. Webmin uses TCP port 10000 as its default port.

Webmin installation Prerequisites

1. 1. Webmin doesn’t consume much ram, but apache on its own needs at least 256 MB.
   2. Any decent up to date processor for handling data.
2. 3. RHEL/Ubuntu installation.

Webmin Installation Step-by-step guide

Step 1: First what you’ll need to do is to download Webmin RPM. Run the following commands:

cd /opt
wget http://www.webmin.com/jcameron-key.asc
wget http://www.webmin.com/download/rpm/webmin-current.rpm

Step 2: Now you’ll need to install it with rpm command:

rpm --import jcameron-key.asc
rpm -Uvh webmin-*.rpm

Step 3: You can start/stop the Webmin service with these simple commands:

/etc/init.d/webmin start

/etc/init.d/webmin stop /etc/init.d/webmin restart /etc/init.d/webmin status

Step4: You can change your root password like this:

/usr/libexec/webmin/changepass.pl /etc/webmin root YOURPASSHERE

Alternative method for Webmin installation

If the above method doesn’t work for you, here is an alternative method for installing Webmin on CentOS.

Step 1: Create a directory webmin.repo like this:

vi /etc/yum.repos.d/webmin.repo

Step 2: Then copy/paste these following lines:

[Webmin]
name=Webmin Distribution Neutral
#baseurl=http://download.webmin.com/download/yum
mirrorlist=http://download.webmin.com/download/yum/mirrorlist
enabled=1
rpm --import http://www.webmin.com/jcameron-key.asc

Step3: Now update the repositories:

yum check-update

Step 4: And install it with:

yum install webmin -y
chkconfig webmin on
service webmin start

Webmin port

Default Webmin port is 10000:

firewall-cmd --add-port=10000/tcp

Now Webmin is installed and you can access it by typing http://YOURIPADDRESS:10000 in your web browser.