NRPE peculiarity

[Stephen Cimarelli]

Check if there is any errors logged in /var/log/messages on the nagios 
server at the same time, I could be caused by something that has nothing 
to do with nagios. I had a similar problem that turned out to be a 
script that was indexing a large web site and another was someone tring 
to hack in via ftp which caused problems with inetd.


Carroll, Jim P [Contractor] wrote:
> 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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>>
> 
> 
> 
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