Install rar and unrar on Centos

Open up ssh client and connect to the server as root user

for 32bit:
 wget http://packages.sw.be/rpmforge-release/rpmforge-release-0.5.1-1.el5.rf.i386.rpm

For 64 bit
 wget http://packages.sw.be/rpmforge-release/rpmforge-release-0.5.1-1.el5.rf.x86_64.rpm

Install DAG’s GPG key
 rpm --import http://apt.sw.be/RPM-GPG-KEY.dag.txt

Install the package
 For 32 bit
 rpm -i rpmforge-release-0.5.1-1.el5.rf.i386.rpm

For 64 bit
 rpm -i rpmforge-release-0.5.1-1.el5.rf.x86_64.rpm

Install Rar and Unrar
 yum install rar unrar