Installation

Download rpm
	wget https://downloads.sourceforge.net/webadmin/usermin-1.520-1.noarch.rpm

Install downloaded rpm
	rpm -U usermin-1.520-1.noarch.rpm

Start usermin service
	service usermin start

Start usermin on boot
	chkconfig usermin on

Open usermin's default binded port in iptables
	nano /etc/sysconfig/iptables
	
	Add line before REJECT statement:
	-A RH-Firewall-1-INPUT -m state --state NEW -m tcp -p tcp --dport 20000 -j ACCEPT

Restart iptables
	service iptables restart