Install EPEL and RPMFORGE Repository on CentOS 6.3 x86_64

Download and import GPG key for EPEL:

[root@manivel ~]# wget http://ftp.riken.jp/Linux/fedora/epel/RPM-GPG-KEY-EPEL-6

Import GPG Key

    [root@manivel ~]# rpm –import RPM-GPG-KEY-EPEL-6

    [root@manivel ~]# rm -f RPM-GPG-KEY-EPEL-6

Download and Install EPEL software :

    [root@manivel ~]# wget http://dl.fedoraproject.org/pub/epel/6/x86_64/epel-release-6-8.noarch.rpm

    [root@manivel ~]# rpm -ivh epel-release-6-8.noarch.rpm



Download and Install RPMFORGE software :

    [root@manivel ~]#  wget   http://packages.sw.be/rpmforge-release/rpmforge-release-0.5.2-2.el6.rf.x86_64.rpm

    [root@manivel ~]#  rpm   -ivh   rpmforge-release-0.5.2-2.el6.rf.x86_64.rpm

It should resolve your issue.