Question: How to configure CentOS/RHEL system as Nagios NRPE Client so it can be monitored from Nagios-Server for system health/performance? Enable EPEL REPO (Fedora Repository) and Install Required Packages 1. Download the epel repository packages for CentOS/RHEL 5 and 6. FOR CentOS/RHEL 6: # wget http://dl.fedoraproject.org/pub/epel/6/x86_64/epel-release-6-8.noarch.rpm For CentOS/RHEL 5: # wget http://dl.fedoraproject.org/pub/epel/5/x86_64/epel-release-5-4.noarch.rpm 2. Install … [Read more...] about How to Configure Nagios NRPE Client for System Monitoring (CentOS/RHEL)