1. Install with make install
You will need to isntall other dependencies such as rrdtool
2. Once-for-all
Check your redhat version with cat /etc/redhat-release
(Version: 5)rpm -Uvh http://dl.fedoraproject.org/pub/epel/5/x86_64/epel-release-5-4.noarch.rpm
(Version: 6)rpm -Uvh http://dl.fedoraproject.org/pub/epel/6/x86_64/epel-release-6-8.noarch.rpm
yum install rrdtool ganglia ganglia-gmetad ganglia-gmond ganglia-web httpd php apr apr-util