NRPE peculiarity

[Carroll, Jim P [Contractor]]

Definitely not on the Solaris/client side.  And I don't believe that
portsentry is configured on the Nagios/server side.

Please understand these error msgs are quite sporadic, ie, I can't reproduce
them.  Just for giggles, I ran the following script from the Nagios host:

while :
do
  ../libexec/check_nrpe itdmln15 -c check_disk_var -to 30
done

and let it run for 5 mins.  I didn't see it hiccup once.  This is a snippet
of the output:

DISK OK - [781664 kB (81%) free on /dev/vx/dsk/var]
DISK OK - [781680 kB (81%) free on /dev/vx/dsk/var]
DISK OK - [781664 kB (81%) free on /dev/vx/dsk/var]
DISK OK - [781664 kB (81%) free on /dev/vx/dsk/var]

and so on.

Thoughts?

jc

> -----Original Message-----
> From: Fredrik Wänglund [mailto:Fredrik.Wanglund at datavis.se]
> Sent: Monday, September 30, 2002 1:54 AM
> To: Carroll, Jim P [Contractor]; nagios-users
> Subject: RE: [Nagios-users] NRPE peculiarity
> 
> 
> Are you sure you are not running portsentry or similar 
> programs that blocks you out on the port NRPE is using?
> 
> 
> 
> /FredrikW
> 
> 
> -----Original Message-----
> From:	Carroll, Jim P [Contractor] [mailto:jcarro10 at sprintspectrum.com]
> Sent:	Fri 27-Sep-02 21:50
> To:	nagios-users
> Cc:	
> Subject:	[Nagios-users] NRPE peculiarity
> 
> I'm starting to roll out NRPE across our hosts (3 so far), 
> and on one of our
> busier ones am getting messages like this one in /var/adm/messages:
> 
> Sep 27 13:35:17 itdmln15 nrpe[20712]: [ID 421412 
> daemon.error] Could not
> read request from client, bailing out...
> 
> And on the Nagios side, this is the sort of message I'm getting from
> nagios.log (with the Perl-converted timestamp):
> 
> [Fri Sep 27 13:35:34 2002] SERVICE ALERT: itdmln15;Total
> Users;UNKNOWN;SOFT;1;CHECK_NRPE: Received 0 bytes.  Are we allowed to
> connect to the host?
> 
> FWIW, the Nagios server is running Red Hat Linux 7.3 2.96-110 
> on a Dell
> Optiplex GX1, and the client running NRPE is running Solaris8 
> on an E6500.
> mii-tool on the Dell reports 100baseTx-FD, and I know that 
> the E6500 is
> running at 100Mbps at full duplex.
> 
> I know my Nagios host could probably benefit from a beefier 
> box, but top
> reports that the system is doing quite well.
> 
> Can anyone comment on this NRPE anomaly?  Is this common, can 
> I expect lots
> more of this sort of problem?  Or do I need to tune 
> something?  (I can't
> imagine what, but still....)
> 
> Suggestions welcomed.
> 
> jc
> 
> 
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