RE: Nrpe Error Message

Since you're on Linux, try this:

strace -o /tmp/nrpe.err /usr/local/nagios/nrpe -c /usr/local/nagios/nrpe.cfg

(Yes, skip the --daemon option, as we want this to run without detaching
from the terminal.)

>From what you've said, I expect that nrpe will exit and you'll be back at
the shell prompt.  Next, take a look at /tmp/nrpe.err and see if there are
any glaring errors.  Start at the end of the file and work backwards.  Paste
anything relevant here, and include 3 lines before/after the line(s) in
question.

jc

> -----Original Message-----
> From: Kaplan, Andrew H. [mailto:AHKAPLAN@xxxxxxxxxxxx]
> Sent: Thursday, January 09, 2003 8:44 AM
> To: 'Jeremy Tinley'
> Cc: 'Nagios-users@xxxxxxxxxxxxxxxxxxxxx'
> Subject: RE: [Nagios-users] Nrpe Error Message
> 
> 
> I ran the ps auxww | grep npre command and nrpe did not appear.
> 
> If nrpe is not starting up, what is going on and what do I need to
> do to get it up and running? I have followed the instructions to the
> letter and there should be no reason for this to be happening.
> 
> -----Original Message-----
> From: Jeremy Tinley [mailto:jtinley@xxxxxxxxxx]
> Sent: Thursday, January 09, 2003 9:41 AM
> To: Kaplan, Andrew H.
> Subject: RE: [Nagios-users] Nrpe Error Message
> 
> 
> When you ran:
> /usr/local/nagios/nrpe -c /usr/local/nagios/nrpe.cfg --daemon
> 
> It should have returned you to a prompt.
> 
> Check ps auxww | grep nrpe and it should be running.  Then 
> check netstat.  The
> problem it appears is that nrpe isn't starting.
> 
> Once you get nrpe started, it should show up in netstat, then 
> you can try
> sending commands to it.
> 
> -J
> 
> -----Original Message-----
> From: Kaplan, Andrew H. [mailto:AHKAPLAN@xxxxxxxxxxxx] 
> Sent: Thursday, January 09, 2003 7:49 AM
> To: 'Jeremy Tinley'
> Cc: 'Nagios-users@xxxxxxxxxxxxxxxxxxxxx'
> Subject: RE: [Nagios-users] Nrpe Error Message
> 
> I ran netstat and I simply returned to the command prompt 
> without any output
> appearing on the screen.
> 
> I restarted xinetd via /etc/rc.d/init.d/xinetd restart and 
> there were no
> messages from nrpe in the log.
> 
> Finally, I ran the command line you suggested, but did not 
> get any different
> reaction. 
> 
> What now?
> 
> -----Original Message-----
> From: Jeremy Tinley [mailto:jtinley@xxxxxxxxxx]
> Sent: Wednesday, January 08, 2003 3:25 PM
> To: Kaplan, Andrew H.
> Subject: RE: [Nagios-users] Nrpe Error Message
> 
> 
> Sorry, I was at lunch. :)
> 
> Ok, check netstat again and see if it's bound.  You should 
> have something
> like
> this:
> 
> $ netstat -a | grep 5666
> tcp        0      0 *:5666                  *:*               
>       LISTEN
> 
> If you don't, then nrpe isn't running.
> 
> Restart xinetd.  If you get no messages from nrpe in the log 
> and it still
> isn't running, you need to try running it manually.
> 
> /usr/local/nagios/nrpe -c /usr/local/nagios/nrpe.cfg --daemon
> 
> Let me know what that does.
> 
> 
> 
> -----Original Message-----
> From: Kaplan, Andrew H. [mailto:AHKAPLAN@xxxxxxxxxxxx] 
> Sent: Wednesday, January 08, 2003 1:59 PM
> To: 'Jeremy Tinley'
> Subject: RE: [Nagios-users] Nrpe Error Message
> 
> Jeremy -- Sorry to bother you, but have you any ideas why I'm 
> having this
> problem? Thanks.
> 
> -----Original Message-----
> From: Jeremy Tinley [mailto:jtinley@xxxxxxxxxx]
> Sent: Wednesday, January 08, 2003 2:16 PM
> To: Kaplan, Andrew H.
> Subject: RE: [Nagios-users] Nrpe Error Message
> 
> 
> What does /var/log/messages show now?
> 
> And what's the ls -al output of /usr/local/nagios ?
> 
> -----Original Message-----
> From: Kaplan, Andrew H. [mailto:AHKAPLAN@xxxxxxxxxxxx] 
> Sent: Wednesday, January 08, 2003 1:15 PM
> To: 'Jeremy Tinley'
> Subject: RE: [Nagios-users] Nrpe Error Message
> 
> Did what you asked...and still no luck....
> 
> -----Original Message-----
> From: Jeremy Tinley [mailto:jtinley@xxxxxxxxxx]
> Sent: Wednesday, January 08, 2003 2:02 PM
> To: Kaplan, Andrew H.
> Subject: RE: [Nagios-users] Nrpe Error Message
> 
> 
> Ok, go into /etc/xinetd.d/nrpe and modify it thus (only the 
> server_args
> changed), then make sure that /usr/local/nagios/nrpe is chmod 755
> (-rwxr-xr-x):
> 
> # default: on
> # description: NRPE
> service nrpe
> {
>       disable                 = no
>       flags                   = REUSE
>       socket_type             = stream
>       wait                    = no
>       user                    = root
>       server          = /usr/local/nagios/nrpe
>       server_args             = --inetd -c /usr/local/nagios/nrpe.cfg
>       log_on_failure  += USERID
>       only_from               = 132.183.12.125
> }
> 
> 
> 
> -----Original Message-----
> From: Kaplan, Andrew H. [mailto:AHKAPLAN@xxxxxxxxxxxx] 
> Sent: Wednesday, January 08, 2003 12:59 PM
> To: 'Jeremy Tinley'
> Subject: RE: [Nagios-users] Nrpe Error Message
> 
> The version of nrpe that I am using is version 1.6.
> 
> -----Original Message-----
> From: Jeremy Tinley [mailto:jtinley@xxxxxxxxxx]
> Sent: Wednesday, January 08, 2003 1:57 PM
> To: Kaplan, Andrew H.
> Subject: RE: [Nagios-users] Nrpe Error Message
> 
> 
> One more..   what version of NRPE are you using on oneofxeon
> 
> 
> # /usr/local/nagios/bin/nrpe --help
> 
> NRPE - Nagios Remote Plugin Executor
> Copyright (c) 1999-2002 Ethan Galstad (nagios@xxxxxxxxxx)
> Version: 1.5
> Last Modified: 06-03-2002
> License: GPL
> 
> 
> Then give me an "ls -al /usr/local/nagios/nrpe"
> 
> 
> -----Original Message-----
> From: Kaplan, Andrew H. [mailto:AHKAPLAN@xxxxxxxxxxxx] 
> Sent: Wednesday, January 08, 2003 12:52 PM
> To: 'Jeremy Tinley'
> Cc: 'Nagios-users@xxxxxxxxxxxxxxxxxxxxx'
> Subject: RE: [Nagios-users] Nrpe Error Message
> 
> The file reads as follows:
> 
> # default: on
> # description: NRPE
> service nrpe
> {
>       disable                 = no
>       flags                   = REUSE
>       socket_type             = stream
>       wait                    = no
>       user                    = root
>       server          = /usr/local/nagios/nrpe
>       server_args             = -i /usr/local/nagios/nrpe.cfg
>       log_on_failure  += USERID
>       only_from               = 132.183.12.125
> }
> 
> -----Original Message-----
> From: Jeremy Tinley [mailto:jtinley@xxxxxxxxxx]
> Sent: Wednesday, January 08, 2003 1:47 PM
> To: Kaplan, Andrew H.
> Subject: RE: [Nagios-users] Nrpe Error Message
> 
> 
> Ok, what's the /etc/xinetd.d/nrpe file look like?
> 
> 
> -----Original Message-----
> From: Kaplan, Andrew H. [mailto:AHKAPLAN@xxxxxxxxxxxx] 
> Sent: Wednesday, January 08, 2003 12:44 PM
> To: 'Jeremy Tinley'
> Cc: 'Nagios-users@xxxxxxxxxxxxxxxxxxxxx'
> Subject: RE: [Nagios-users] Nrpe Error Message
> 
> I am running nrpe under xinetd.
> 
> I did a netstat -a | grep 5666 and there was no output. I was 
> returned to a
> shell prompt.
> 
> Nrpe.cfg is located at /usr/local/nagios
> 
> Anything else?
> 
> -----Original Message-----
> From: Jeremy Tinley [mailto:jtinley@xxxxxxxxxx]
> Sent: Wednesday, January 08, 2003 1:36 PM
> To: Kaplan, Andrew H.
> Subject: RE: [Nagios-users] Nrpe Error Message
> 
> 
> Ok, take one giant step backwards.
> 
> How are you running nrpe?  As a daemon or xinetd/inetd?
> 
> Now do a netstat -a | grep 5666
> 
> What's the output?
> 
> Now, where is nrpe.cfg?
> 
> 
> 
> 
> -----Original Message-----
> From: Kaplan, Andrew H. [mailto:AHKAPLAN@xxxxxxxxxxxx] 
> Sent: Wednesday, January 08, 2003 12:34 PM
> To: 'Jeremy Tinley'
> Cc: 'Nagios-users@xxxxxxxxxxxxxxxxxxxxx'
> Subject: RE: [Nagios-users] Nrpe Error Message
> 
> The messages log file had the following entries:
> 
> Server /usr/local/nagios/nrpe is not executable [line=10]
> 
> nrpe[26725]: Unable to open config file '//nrpe.cfg' for reading
> Config file '//nrpe.cfg' contained errors, bailing out...
> 
> What gives?
> 
> -----Original Message-----
> From: Jeremy Tinley [mailto:jtinley@xxxxxxxxxx]
> Sent: Wednesday, January 08, 2003 1:07 PM
> To: Kaplan, Andrew H.
> Subject: RE: [Nagios-users] Nrpe Error Message
> 
> 
> check_disk? Or check)disk.  Not sure if you just made a typo 
> on the command
> back into the email.
> 
> Check the log on oneofxeon, probably in /var/log/messages to 
> see what's
> going
> on.  That usually means that you don't have permission to 
> connect (ala,
> /etc/hosts.allow if you run under (x)inetd or the nrpe.cfg file if you
> don't.
> 
> 
> -----Original Message-----
> From: Kaplan, Andrew H. [mailto:AHKAPLAN@xxxxxxxxxxxx] 
> Sent: Wednesday, January 08, 2003 11:55 AM
> To: 'Jeremy Tinley'
> Subject: RE: [Nagios-users] Nrpe Error Message
> 
> I entered in the following: 
> 
> ./check_nrpe -H oneofxeon -p 5666 -c check)disk
> 
> and got the following:
> 
> CHECK_NRPE: Error receiving data from host.
> 
> 
> 
> -----Original Message-----
> From: Jeremy Tinley [mailto:jtinley@xxxxxxxxxx]
> Sent: Wednesday, January 08, 2003 12:49 PM
> To: Kaplan, Andrew H.
> Subject: RE: [Nagios-users] Nrpe Error Message
> 
> 
> Perhaps I gave you the wrong command..  lowercase c, instead 
> of capital:
> 
> $ ./check_nrpe -H db1 -p 5666 -c check_disk_var
> DISK OK - [4632496 kB (96%) free on /dev/sda8]
> 
> 
> 
> -----Original Message-----
> From: Kaplan, Andrew H. [mailto:AHKAPLAN@xxxxxxxxxxxx] 
> Sent: Wednesday, January 08, 2003 11:46 AM
> To: 'Jeremy Tinley'
> Subject: RE: [Nagios-users] Nrpe Error Message
> 
> Here's what I entered:
> 
> ./check_nrpe -H oneofxeon -p 5666 -C check_disk -w 80 -c 95
> 
> I got the same error message.....
> 
> I also tried 
> 
> ./check_nrpe -H oneofxeon -p 5666 -C check_disk
> 
> and got the same result....
> 
> -----Original Message-----
> From: Jeremy Tinley [mailto:jtinley@xxxxxxxxxx]
> Sent: Wednesday, January 08, 2003 12:41 PM
> To: Kaplan, Andrew H.
> Subject: RE: [Nagios-users] Nrpe Error Message
> 
> 
> You have to specify -C check_disk
> 
> It's the same command in the square brackets:
> command[check_users]=....
> 
> 
> 
> 
> -----Original Message-----
> From: Kaplan, Andrew H. [mailto:AHKAPLAN@xxxxxxxxxxxx] 
> Sent: Wednesday, January 08, 2003 11:37 AM
> To: 'Jeremy Tinley'
> Cc: 'Nagios-users@xxxxxxxxxxxxxxxxxxxxx'
> Subject: RE: [Nagios-users] Nrpe Error Message
> 
> The command that I entered at the monitoring host was
> 
> ./check_nrpe -H oneofxeon -p 5666 -C 
> /usr/local/nagios/libexec/check_disk -w
> 80 -c 95
> 
> The result was INCORRECT COMMAND LINE ARGUMENTS SUPPLIED
> 
> What gives?
> 
> -----Original Message-----
> From: Jeremy Tinley [mailto:jtinley@xxxxxxxxxx]
> Sent: Wednesday, January 08, 2003 11:49 AM
> To: Kaplan, Andrew H.
> Subject: RE: [Nagios-users] Nrpe Error Message
> 
> 
> Try running the check_nrpe command from the monitoring host.
> 
> check_nrpe -H <host> -p <port> -C check_userrs
> 
> see if that gets you any further.
> 
> I noticed that -H and -p were added in the change from nrpe 1.5 to 1.6
> 
> -J
> 
> -----Original Message-----
> From: nagios-users-admin@xxxxxxxxxxxxxxxxxxxxx
> [mailto:nagios-users-admin@xxxxxxxxxxxxxxxxxxxxx] On Behalf Of Kaplan,
> Andrew
> H.
> Sent: Wednesday, January 08, 2003 10:33 AM
> To: 'Carroll, Jim P [Contractor]'
> Cc: Nagios-users@xxxxxxxxxxxxxxxxxxxxx
> Subject: RE: [Nagios-users] Nrpe Error Message
> 
> Things got a little better since I sent out my e-mail. I am getting a
> connection
> to
> to the remote client. Now I am getting an INCORRECT COMMAND 
> LINE ARGUMENTS
> SUPPLIED
> error.
> 
> When I run the check from the command line, it comes out fine.
> 
> Here is the syntax of the nrpe.cfg file on the client:
> 
> command[check_users]=/usr/local/nagios/libexec/check_users 50 80
> command[check_disk1]=/usr/local/nagios/libexec/check_disk 80 
> 95 /dev/sda8
> command[check_load]=/usr/local/nagios/libexec/check_load 
> 15,10,5 30,25,20
> command[check_procs]=/usr/local/nagios/libexec/check_procs 150 200
> 
> What is going on?
> 
> -----Original Message-----
> From: Carroll, Jim P [Contractor] [mailto:jcarro10@xxxxxxxxxxxxxxxxxx]
> Sent: Wednesday, January 08, 2003 11:05 AM
> To: Kaplan, Andrew H.; Nagios-users@xxxxxxxxxxxxxxxxxxxxx
> Subject: RE: [Nagios-users] Nrpe Error Message
> 
> 
> And running check_nrpe from the command line...?  Pass or fail...?
> 
> jc
> 
> > -----Original Message-----
> > From: Kaplan, Andrew H. [mailto:AHKAPLAN@xxxxxxxxxxxx]
> > Sent: Wednesday, January 08, 2003 9:00 AM
> > To: Nagios-users@xxxxxxxxxxxxxxxxxxxxx
> > Subject: [Nagios-users] Nrpe Error Message
> > 
> > 
> > I installed the latest nrpe client on a remote machine, and 
> > also copied the
> > necessary
> > plugins from the nagios server to the client. The nrpe.cfg 
> > file was modified
> > to suit the
> > remote machine's configuration. When I tried to monitor the 
> > various services
> > on the client
> > I was confronted with the following error message:
> > 
> > Return code of 127 is out of bounds - plugin may be missing.
> > 
> > I am running Nagios 1.0 with the latest nrpe client as well 
> > as the latest
> > nagios plug-ins.
> > 
> > There were no apparent problems with compiling and 
> installing the nrpe
> > client on the remote machine.
> > 
> > The /etc/xinetd.d services were restarted after the nrpe install was
> > complete.
> > 
> > The nagios server is running on a Red Hat 8.0 box and the 
> > remote client is
> > Red Hat 7.3
> > 
> > 
> > 
> > 
> > -------------------------------------------------------
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> > 
> 
> 
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> 
> -------------------------------------------------------
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