Nagios Support Forum

Haha on me. So it wasn't the firewall. The monitoring server (which I'm not proud to say I setup) is dual-homed. It has an interface on the 10.x network and all traffic to the remote servers are naturally using that interface. So, adding the 5.41 to the only_from_hosts did nothing. But adding the pr...

I think you've found it. Telnet port 5666 from new server gets dropped by the remote server. Telnet from old server stays connected. I think the traffic is getting blocked on the way back. Checking FW config now. Nmap shows port is open but doesn't expect return traffic. Thanks. I will update if/whe...

No. There is nothing in the /etc/hosts.allow file (all commented out).

Update: I went the other way and upgraded the remote host nrpe to 2.14. No difference. Old server still works. New server still errors. Remote: [root@bigtank nrpe-2.14]# /usr/local/nagios/bin/nrpe|head -8 NRPE - Nagios Remote Plugin Executor Copyright (c) 1999-2008 Ethan Galstad (nagios@nagios.org) ...

Yes. I have added the allowed_hosts and only_from_hosts (both servers are in both locations) although I realize that with xinetd the nrpe.cfg is ignored. I figured it couldn't hurt. I also ran this on the remote client and clearly see now that the new server is on a newer nrpe version. I am going to...

Hello, I am receiving the CHECK_NRPE: Error - Could not complete SSL handshake error. Here is the background and how I have tried to resolve it. I have Nagios version 3.3.1 running on ip 192.168.10.11. Everything is great, no errors. I setup a new Nagios on ip 192.168.5.41. CHECK_NRPE: Error - Could...