Install NRPE To Add Linux Server In Nagios

 # yum install openssl-devel gcc xinetd make glibc

# wget http://ufpr.dl.sourceforge.net/project/nagios/nrpe-2.x/nrpe-2.14/nrpe-2.14.tar.gz
# tar -xzf nrpe-2.14.tar.gz

# wget http://nagios-plugins.org/download/nagios-plugins-2.0.3.tar.gz
tar -xzf nagios-plugins-2.0.3.tar.gz
cd nagios-plugins-2.0.3
useradd nagios
./configure --with-nagios-user=nagios --with-nagios-group=nagios

make && make install

chown -R nagios:nagios /usr/local/nagios/libexec

cd nrpe-2.14
./configure

make all

make install-plugin

make install-daemon

make install-daemon-config

make install-xinetd

vim /etc/services     

nrpe            5666/tcp                # NRPE

:wq


vim /etc/xinetd.d/nrpe 

only_from       = 127.0.0.1 192.168.0.102

# add nagios ip

:wq


service xinetd start

chkconfig xinetd on

chmod -R 777 /usr/local/nagios/libexec/* ; chown -R nagios:nagios /usr/local/nagios/libexec/*

cd /usr/local/nagios/etc/

vim nrpe.cfg

command[check_users]=/usr/local/nagios/libexec/check_users -w 4 -c 5
command[check_load]=/usr/local/nagios/libexec/check_load -w 15,10,5 -c 30,25,20
command[check_disk]=/usr/local/nagios/libexec/check_disk -w 16% -c 15%
command[check_zombie_procs]=/usr/local/nagios/libexec/check_procs -w 5 -c 10 -s Z
command[check_total_procs]=/usr/local/nagios/libexec/check_procs -w 140 -c 150
command[check_mem]=/usr/local/nagios/libexec/check_mem -w 65,24 -c 75,25
command[check_cpu_perf]=/usr/local/nagios/libexec/check_cpu_perf
command[check_uptime]=/usr/local/nagios/libexec/check_uptime


:wq

service xinetd restart