I have an issue with executin nrpe checks on one of the hosts I need to monitor.
Monitoring server is Ubuntu Server with Nagios 3.2.3, installed by means of apt-get.
Monitored host is Ubuntu server 8.10 with nagios-nrpe-server package installed. It is set to be started through xinetd.
I have set the allowed_hosts= parameter in /etc/nagios/nrpe.cfg and in nrpe_local.cfg
I have set the only_from parameter in /etc/xinetd.d/nrpe
I have set the nrpe port in /etc/services
Still when do a syslog tail I get the message:
Host x.x.x.x is not allowed to talk to us!
I have tried starting the nrpe manually bypassing the xinted with command
/usr/sbin/nrpe -c /etc/nagios/nrpe.cfg -d
but the error message is still the same
Both hosts have public IPs. netstat shows that the ports are in listening state. Firewall is not the issue
Any clues? Does this have to do with the Ubuntu version maybe? I need this machine to be at this distro version because of some custom software that it is running.
Thanks in advance.