[Nagiosplug-help] random "UNKNOWN" errors

[Valerio.FABRIZIO at sungard.com]

... i think it's better if I add an object to my email...

Thanks


-----Messaggio originale-----
Da: Fabrizio, Valerio 
Inviato: venerdì 12 febbraio 2010 8.42
A: 'Nagios Plugin Help List'
Oggetto: 

Hello
I have a nagios monitoring on about 1700 services and 75 servers. I'm tuning the timeouts in order to eliminate "service check timed out" messages, but meanwhile I keep getting "CHECK_NRPE: Received 0 bytes from daemon. Check the remote server logs for error messages" messages. This is not due to real problems on client's side, because the messages appear randomly, and the checks hit by this message usually work fine.
Could anybody out there help me on understanding what should I check/modify in my configuration? 
I'm using Nagios 3.2.0, and monitoring Solaris and Linux servers, but the messages appear in the 90% of the cases on Solaris machines.

Thank you for your help! 


Valerio Fabrizio * Technical Specialist * SunGard * Global Trading * GLESIA Srl - via Degli Amedei, 15 20123 Milano, Italy