REPOST: Problem with Connecting To New Client

[Kaplan, Andrew H.]

Hi there --

I tried running the nrpe client as a daemon service again, and now it seems to
be  behaving properly. Go figure -- 

One item I did notice after it seemed to be working properly: the Total
Processes and Zombie Processes checks 
(both using check_procs) are returning a warning message which reads: System
call sent warnings to stderr 

Any idea what that means? Thanks. 


-----Original Message-----
From: Michael Gale [mailto:michael.gale at pason.com]
Sent: Monday, April 25, 2005 3:21 PM
To: Kaplan, Andrew H.
Subject: Re: [Nagios-users] REPOST: Problem with Connecting To New
Client


Hello,

	Do you have any firewall rules ? Is there any information in the system
log files ?

Michael


On Mon, 2005-04-25 at 13:47 -0400, Kaplan, Andrew H. wrote:
> Hi there --
> 
> I am attempting to add a new client to be monitored by Nagios but for some
> reason the new client is refusing connection from the Nagios server.
> 
> The NRPE client is version 1.8, while the Nagios server is version 1.2. The
> operating system on the client is Fedora Core 3, while that on the server is 
> Red Hat Linux 8.0.
> 
> The plugins that I downloaded and installed are version 1.4. I ran the
configure
> 
> and make commands when compiling the plugins and then I went to the plugins 
> directory and copied the files to the /usr/local/nagios/libexec filesystem 
> on the client.
> 
> The nrpe.cfg file that I used was one that I ftp'd over from another system,
> albeit a SPARC platform running Aurora Linux 1.0, and modified the file to 
> better fit the system that it was copied onto. Also, the /etc/services file
was
> modified to include a new line that has the TCP protocol available on port
5666.
> 
> The /etc/xinetd.d/nrpe file is just like those on other systems, and it
> specifically allows the nagios server to make connections to it. I have
stopped 
> and restarted the xinetd service as well as restarted the client machine 
> without success. 
> 
> I can ping the client system from the server using its hostname and ip address
> and also from the client machine itself. The client machine can ping the
Nagios
> server without problem.
> 
> When I manually run several plugins from the server: check_http and check_ssh,
> they
> are able to get the appropriate information from the client. Likewise, the
same
> plugins are able to run on the client. 
> 
> When I attempt to telnet the client at port 5666, I get a COULD NOT OPEN A
> CONNECTION
> ON PORT 5666 error message. I have also tried having the nrpe binary run in
> daemon mode
> on the client, and while it appears to be running, the Nagios server is unable
> to get
> the appropriate information.
> 
> Can anyone help? Thanks.
> 
> 
> 
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