How to install Webmin on CentOS 7

I have upgraded some of my systems from Centos 6 to Centos 7. There are many new features in Centos 7 that Centos 6 does not have, but the way Centos 7 work is sort of different from Centos 6. Back to our topic, I’m going to show you how to install Webmin on Centos 7 / RHEL 7. Webmin is a great open source web based control panel for Linux. You can pretty much mange everything on your Centos 7 system remotely through Webmin like DNS, Apache, MySQL, DHCP, Network, Iptables, Firewall, Cron, etc… For someone who is new to Linux administration, a control panel like Webmin is a great start.

webminThere are two way to install Webmin on CentOS 7, you can either download and install Webmin’s RPM package or install Webmin using the Webmin YUM repository. Before you install Webmin, there are a few dependencies you should install to your system first

# yum -y install perl perl-Net-SSLeay openssl perl-IO-Tty

Then import Webmin’s PGP key into RPM’s key database

# rpm --import http://www.webmin.com/jcameron-key.asc

Configure firewalld to allow Webmin

CentOS 7 has adopted firewalld by default over the previous iptables, to make firewalld to work with Webmin you will have to configure your firewall to allow webmin.

Create a new firewalld service for webmin

# nano /etc/firewalld/services/webmin.xml

with the content

<?xml version="1.0" encoding="utf-8"?>
<service>
 <short>Webmin</short>
 <description>web-based interface for system administration for Unix</description>
 <port protocol="tcp" port="10000"/>
</service>

Add Webmin service to public zone

# firewall-cmd --permanent --zone=public --add-service=webmin

Reload firewalld

# firewall-cmd --reload

Once you reloaded firewalld, check to see if webmin is allowed on firewalld

# firewall-cmd --zone=public --list-all

You should see webmin is listed

public (default)
 interfaces:
 sources:
 services: dhcpv6-client http https ssh webmin

Now let’s install Webmin on CentOS 7, I will show you both ways installing the RPM file or using the Webmin YUM repository. Take your pick.

Install Webmin on CentOS 7 with RPM

If you want to install with the RPM file, first you will have to visit http://www.webmin.com/download.html to download the latest Webmin’s RPM file for CentOS 7. Look for “RPM suitable for Redhat, Fedora, CentOS, SuSE or Mandrake Linux”, the file should end with .rpm file extension. At the time I’m writing this tutorial, the latest RPM Webmin file is webmin-1.780-1.noarch.rpm

# cd /tmp
# wget http://prdownloads.sourceforge.net/webadmin/webmin-1.780-1.noarch.rpm
# rpm -U webmin*.rpm

Install Webmin on CentOS 7 Using the Webmin YUM repository

Create webmin.repo file

 # nano /etc/yum.repos.d/webmin.repo

[Webmin]
name=Webmin Distribution Neutral
#baseurl=http://download.webmin.com/download/yum
mirrorlist=http://download.webmin.com/download/yum/mirrorlist
enabled=1

# yum install webmin

https://yourhostname.com:10000

https://yourserverip:10000