NEED HELP setting up distributed monitoring

[Michael Tucker]

Howdy:

I've written a couple of times before with this question, but I think 
my previous message(s) got lost in the noise.

I'm setting up a Nagios configuration for the first time, so although 
I'm pretty smart when it comes to computers, I'm a complete newbie when 
it comes to Nagios.

I'm setting up a distributed monitoring configuration. For simplicity, 
to start with, I've got one central server, one distributed server, and 
one monitored host:

central server <-> distributed server <-> monitored host

For now, they are on the same LAN, with no firewall or any other 
barriers between them. However, once things are working the distributed 
server and monitored host will be on a remote LAN, with at least one or 
two firewalls between the central server and distributed server. Also, 
there will be multiple hosts monitored by the distributed server; and 
eventually multiple such setups (i.e. multiple distributed servers, 
each monitoring multiple hosts local to it).

The distributed server is monitoring several services on the monitored 
host, using check_nrpe (on the distributed server) and nrpe (on the 
monitored host). This is working fine (except that nrpe 2.0 doesn't 
seem to work with SSL 0.9.7c running on Solaris 9, or AIX 5.1, or SUSE 
9, or Fedora 1). [I think this is a bug in nrpe 2.0, but that's a 
different thread.]

The distributed server is supposed to be sending the status reports on 
to the central server, using send_nsca (on the distributed server) and 
nsca (on the central server). This is *not* working, and is the reason 
for this message.

I've enabled Apache on both the distributed server and the central 
server, so that I can see what each one is "seeing". The distributed 
server reports, for example, that the "current users" status of the 
monitored host is "USERS WARNING - 6 users currently logged in". This 
is correct; I've set the warn threshold low (5 users) for testing. 
However, the central server shows "(No output!)" for the same service 
(and, in fact, for every service except PING, which it is testing 
itself).

I would be happy to share my config files with whomever would be 
willing to help me. I've tried reading the documentation; I've tried 
reason and logic; and I've tried random hacking. I'm out. I have no 
idea why this isn't working.

Please, if someone would help me with this, I'm sure it's something 
basic that I've overlooked, but I just can't find it.

Yours,
Michael



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