Nagios Support Forum

hi ,

i have configured nagios server. then i have added client machine into the nagios server but after adding client machine i am getting error.Please find the attachment.

CHECK_NRPE: Socket timeout after 30 seconds.

try and turn selinux off on both machines
echo 0 >/selinux/enforce

Just want to add that if the previous suggestion does not resolve the issue, then follow the steps outlined in this doc. Section IV addresses this situation directly.

https://assets.nagios.com/downloads/nag ... utions.pdf

nozlaf wrote:try and turn selinux off on both machines
echo 0 >/selinux/enforce

Still i am facing the same issue.

bwallace wrote:Just want to add that if the previous suggestion does not resolve the issue, then follow the steps outlined in this doc. Section IV addresses this situation directly.

https://assets.nagios.com/downloads/nag ... utions.pdf

still i am facing the same issue.

still i am facing the same issue.anyone can help on this.

Can you please post your service definition from the Nagios machine, and your NRPE configuration file from the client machine?

Also, on the client machine please run netstat -anp|grep 5666, and on the Nagios machine run nmap ipofclientmachine - post both results back here.

rkennedy wrote:Can you please post your service definition from the Nagios machine, and your NRPE configuration file from the client machine?

Also, on the client machine please run netstat -anp|grep 5666, and on the Nagios machine run nmap ipofclientmachine - post both results back here.

Hi , please find the below updates.
client machine :

[root@ept74 ~]# netstat -anp|grep 5666
tcp 0 0 0.0.0.0:5666 0.0.0.0:* LISTEN 24017/nrpe
tcp 0 0 :::5666 :::* LISTEN 24017/nrpe

Nagios Machine :

[root@AIPL-CHE-NAGIOS ~]# nmap 192.168.100.21

Starting Nmap 5.51 ( http://nmap.org ) at 2016-03-07 12:07 IST
Nmap scan report for 192.168.100.21
Host is up (0.0080s latency).
Not shown: 995 filtered ports
PORT STATE SERVICE
22/tcp open ssh
80/tcp closed http
113/tcp closed auth
443/tcp closed https
8080/tcp closed http-proxy

Nmap done: 1 IP address (1 host up) scanned in 4.76 seconds

Hi , please find the below updates.
client machine :

[root@ept74 ~]# netstat -anp|grep 5666
tcp 0 0 0.0.0.0:5666 0.0.0.0:* LISTEN 24017/nrpe
tcp 0 0 :::5666 :::* LISTEN 24017/nrpe

Nagios Machine :

[root@AIPL-CHE-NAGIOS ~]# nmap 192.168.100.21

Starting Nmap 5.51 ( http://nmap.org ) at 2016-03-07 12:07 IST
Nmap scan report for 192.168.100.21
Host is up (0.0080s latency).
Not shown: 995 filtered ports
PORT STATE SERVICE
22/tcp open ssh
80/tcp closed http
113/tcp closed auth
443/tcp closed https
8080/tcp closed http-proxy

Nmap done: 1 IP address (1 host up) scanned in 4.76 seconds

Can you please try the following?

On the Nagios server: