install repoforge for third party application on RHEL, CENTOS

1.import GPG KEY for repoforge
#rpm --import http://apt.sw.be/RPM-GPG-KEY.dag.txt

2.get and install repoforge package
#wget http://packages.sw.be/rpmforge-release/rpmforge-release-0.5.2-2.el6.rf.x86_64.rpm
#rpm -ivh http://packages.sw.be/rpmforge-release/rpmforge-release-0.5.2-2.el6.rf.x86_64.rpm

3.install third party program
#yum install openvpn

4.repoforge include packages
http://packages.sw.be/