Hello,
Below is the output from the remote box:
****@****:~$ ps axuw|grep nrpe
1411391397 20499 0.0 0.0 6504 624 pts/7 S+ 03:10 0:00 grep --color=auto nrpe
nagios 30035 0.0 0.0 39408 804 ? Ss Apr15 1:07 /usr/sbin/nrpe -c /etc/nagios/nrpe.cfg -d
****@****:~$ netstat -at | grep nrpe
tcp 0 0 *:nrpe *:* LISTEN
Here is the output from Nagios box:
NRPE is installed via repo.
[****@**** ~]$ /usr/local/nagios/libexec/check_nrpe -H **** -t 60 -c check_mountpoints
NRPE: Unable to read output
[****@**** ~]$ /usr/local/nagios/libexec/check_nrpe -H ****
NRPE v2.12
[****@**** ~]$ nmap **** -p 5666
Starting Nmap 5.51 (
http://nmap.org ) at 2015-04-20 03:13 CDT
Nmap scan report for 192.168.18.102
Host is up (0.011s latency).
PORT STATE SERVICE
5666/tcp open nrpe
Nmap done: 1 IP address (1 host up) scanned in 1.97 second