Nagios Support Forum

Hi i have send wrong info on last post

also i have tried to check with

allowed_hosts=127.0.0.1,115.114.12.4,182.74.168.35

allowed_hosts=127.0.0.1 115.114.12.4 182.74.168.35

If you are running the NRPE agent using xinetd, you would edit the following file and add the IP address in the only_from option with spaces between them. No commas.
/etc/xinetd.d/nrpe If you are running the NRPE as a daemon, you would edit the nrpe.cfg file and add the IP address in the allowed_hosts option with commas between the addresses.

Done

root@ip-172-31-28-18:~# nano /etc/xinetd.d/nrpe
GNU nano 2.2.6 File: /etc/xinetd.d/nrpe

# default: on
# description: NRPE (Nagios Remote Plugin Executor)
service nrpe
{
flags = REUSE
socket_type = stream
port = 5666
wait = no
user = nagios
group = nagios
server = /usr/local/nagios/bin/nrpe
server_args = -c /usr/local/nagios/etc/nrpe.cfg --inetd
log_on_failure += USERID
disable = no
only_from = 127.0.0.1 115.114.12.4 182.74.168.35
}

2) /usr/local/nagios/etc/nrpe.cfg
allowed_hosts=127.0.0.1, 115.114.12.4,182.74.168.35

3) root@ip-172-31-28-18:~# nano /etc/nagios/nrpe.cfg
allowed_hosts=127.0.0.1, 115.114.12.4,182.74.168.35

4) root@ip-172-31-28-18:~# service xinetd restart
xinetd stop/waiting
xinetd start/running, process 19831
root@ip-172-31-28-18:~#

but still not working

Can you login to the ubuntu server in a shell, run the following commands and post the output?

1) root@ip-172-31-28-18:~# netstat -apn |grep 5666
tcp 0 0 0.0.0.0:5666 0.0.0.0:* LISTEN 5341/nrpe
tcp6 0 0 :::5666 :::* LISTEN 5341/nrpe

2) root@ip-172-31-28-18:~# nmap 127.0.0.1 -p 5666

Starting Nmap 6.40 ( http://nmap.org ) at 2017-04-06 13:57 UTC
Nmap scan report for localhost (127.0.0.1)
Host is up (0.000044s latency).
PORT STATE SERVICE
5666/tcp open nrpe

Nmap done: 1 IP address (1 host up) scanned in 1.03 seconds

3) root@ip-172-31-28-18:~# /usr/local/nagios/libexec/check_nrpe -H 127.0.0.1
NRPE v2.15

That test looks like it worked.

Edit the nrpe.cfg file on that remote host and add the following line at the bottom Then restart the NRPE Agent by running [/code]

Then login to the Nagios server, run the following commands, replacing xxx.xxx.xxx.xxx with the IP address of the remote server. '

If they fail, make sure to login to the AWS management interface and allow port 5666 inbound in the security settings for that host.

Hi Team,

I have done all these things and port 5666 are already allowed for our environment,

In monitoring Wizard NRPE is working on this and Linux server monitoring is still not working we needs to monitoring disk utilization and CPU

Please also check the screen shots,

You need to add the commands for the others like he had you do for check_disk. Both of those wizards use nrpe so you only need to do it once.

Can you please share document how can i add ?
Thanks

also its show error on remote server

root@ip-172-31-28-18:~# /usr/local/nagios/libexec/check_nrpe -H localhost -c check_disk -a '-w 70% -c 80% -p /'
CHECK_NRPE: Received 0 bytes from daemon. Check the remote server logs for error messages.
root@ip-172-31-28-18:~#