To install nrpe on RedHat6 just install the rpmforge yum repository:
32bit:
[root@testbox Download]# rpm -ivh http://www.mirrorservice.org/sites/apt.sw.be/redhat/el6/en/x86_64/rpmforge/RPMS/rpmforge-release-0.5.3-1.el6.rf.i686.rpm
64bit:
[root@testbox Download]# rpm -ivh http://www.mirrorservice.org/sites/apt.sw.be/redhat/el6/en/x86_64/rpmforge/RPMS/rpmforge-release-0.5.3-1.el6.rf.x86_64.rpm
and install the whole package:
yum install -y nagios-nrpe
…. simples
This is all very new to me and this article really opened my eyes.Thanks for sharing with us your wisdom.