Nrpe Error Message

Jeremy Tinley jtinley at unirez.com
Thu Jan 9 15:51:41 CET 2003
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The syntax of nrpe changed from 1.5 to 1.6 (-i becomes --inetd and -c is used
for config file specification).



-----Original Message-----
From: nagios-users-admin at lists.sourceforge.net
[mailto:nagios-users-admin at lists.sourceforge.net] On Behalf Of Carroll, Jim P
[Contractor]
Sent: Wednesday, January 08, 2003 5:31 PM
To: nagios-users at lists.sourceforge.net
Subject: RE: [Nagios-users] Nrpe Error Message

Hmm.  That's not what I'm using.  This is what I'm using, quite
successfully:

$ cat /etc/xinetd.d/nrpe
# default: on
# description: NRPE
service nrpe
{
        flags           = REUSE
        socket_type     = stream
        wait            = no
        user            = nagios
        server          = /home/nagios/bin/nrpe
        server_args     = -i /home/nagios/etc/nrpe.cfg
        log_on_failure  += USERID
        disable         = no
        only_from       = 127.0.0.1 10.108.58.68 10.108.58.69
}

Andrew, I noticed you've set the user to root.  For security reasons, after
you've completed this 'test phase', I urge you to define an unprivileged
account (eg, 'nagios') and set user to nagios, as above.  You might also
want to add 127.0.0.1 to the only_from declaration, so that after
installation, you can do a simple "telnet localhost 5666" to see if the nrpe
daemon answers.

Oh, and in case it hasn't been mentioned yet, you'll need to restart xinetd.
A "pkill -12 xinetd" works under RH Linux 7.2.  If things are still
dysfunctional, check your /var/log/messages.

jc

> -----Original Message-----
> From: James Peterson [mailto:showkilr at showkilr.com]
> Sent: Wednesday, January 08, 2003 4:30 PM
> To: nagios-users at lists.sourceforge.net
> Subject: Re: [Nagios-users] Nrpe Error Message
> 
> 
> here are the args you need to change.
> 
>  server_args = -c /usr/local/nagios/nrpe.cfg --inetd
> user = nagios
> 
> 
>  James "Showkilr" Peterson
> > ----- Original Message -----
> > From: "Kaplan, Andrew H." <AHKAPLAN at PARTNERS.ORG>
> > To: "'Jeremy Tinley'" <jtinley at unirez.com>
> > Cc: <Nagios-users at lists.sourceforge.net>
> > Sent: Wednesday, January 08, 2003 12:51 PM
> > 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 at unirez.com]
> > > 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 at PARTNERS.ORG]
> > > Sent: Wednesday, January 08, 2003 12:44 PM
> > > To: 'Jeremy Tinley'
> > > Cc: 'Nagios-users at lists.sourceforge.net'
> > > 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 at unirez.com]
> > > 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 at PARTNERS.ORG]
> > > Sent: Wednesday, January 08, 2003 12:34 PM
> > > To: 'Jeremy Tinley'
> > > Cc: 'Nagios-users at lists.sourceforge.net'
> > > 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 at unirez.com]
> > > 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 at PARTNERS.ORG]
> > > 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 at unirez.com]
> > > 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 at PARTNERS.ORG]
> > > 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 at unirez.com]
> > > 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 at PARTNERS.ORG]
> > > Sent: Wednesday, January 08, 2003 11:37 AM
> > > To: 'Jeremy Tinley'
> > > Cc: 'Nagios-users at lists.sourceforge.net'
> > > 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 at unirez.com]
> > > 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 at lists.sourceforge.net
> > > [mailto:nagios-users-admin at lists.sourceforge.net] On 
> Behalf Of Kaplan,
> > > Andrew
> > > H.
> > > Sent: Wednesday, January 08, 2003 10:33 AM
> > > To: 'Carroll, Jim P [Contractor]'
> > > Cc: Nagios-users at lists.sourceforge.net
> > > 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 at sprintspectrum.com]
> > > Sent: Wednesday, January 08, 2003 11:05 AM
> > > To: Kaplan, Andrew H.; Nagios-users at lists.sourceforge.net
> > > 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 at PARTNERS.ORG]
> > > > Sent: Wednesday, January 08, 2003 9:00 AM
> > > > To: Nagios-users at lists.sourceforge.net
> > > > 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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> >
> 
> 
> 
> -------------------------------------------------------
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> 


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