Nagios Support Forum

Hi guys,

I installed Nagios Core 4.3.2 server and client. In client when i try to execute this : /usr/local/nagios/libexec/check_nrpe -H localhot -n, the answer is this CHECK_NRPE: Error receiving data from daemon.

I have revised:

-firewall/iptables: it's desactivated

- nrpe.cfg:

#server_address=127.0.0.1
]nrpe_user=nagios
nrpe_group=nagios
allowed_hosts=127.0.0.1

- user and group

nagios500:500::/home/nagios:/bin/bash
nagios500:

drwxrwxr-x. 2 nagios nagios 4096 ago 10 13:41 libexec
drwxrwxr-x. 2 nagios nagios 4096 ago 10 13:52 etc
-rw-r--r--. 1 nagios nagios 7,9K ago 10 13:49 nrpe.cfg

-xinetd
[root@SrvNagiosCore-cliente xinetd.d]# cat nrpe.xinetd
# 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 = 127.0.0.1 192.168.100.67
}

I can't find the cause of problem.

Best regards!

Someone can help me?

Are you running nrpe as a daemon (service) or as a xinetd service?

try
This may be a dns resolution issue for localhost

Ok,

I will try it

Let me know if this resolves your issue. Thank you!

resolved.

Thanks for help!

Glad to hear it! I'll be closing this up now, but feel free to open another thread if you need anything in the future!