[Nagiosplug-help] Error: Request contained command arguments, but argument option is not enabled!

[Justin Amburn]

I had some issues getting the nrpe client to run some checks properly in 
Solaris 10. It was the 'unable to read plugin output' error when running 
'check_oracle' and some others that output multi-line text. In the end I 
was unable to figure out whether it was *nix permissions, RBAC, 
build/lib issues, an old shell, env vars, or some other subtle issue. 
I'm not certain, but there may be pre-compiled binaries available for 
Solaris 8. Anyway, good luck.

Grant Lowe wrote:
> Hi Philip,
>
> First, thanks for the reply.  I appreciate the help.
>
> Well, I changed my nrpe configuration around, so hopefully I don't need to enable command-line arguments via the "dont_blame_nrpe" directive now.  Please let me know if this sounds and looks good.
>
> On the nagios server, I now get this error:
>
> [root at nagios-test objects]# /usr/lib/nagios/plugins/check_nrpe -H 172.20.60.50 -n -c check_disk
> NRPE: Unable to read output
> [root at nagios-test objects]#
>
> So it seems like the syntax is ok as the remote host is not complaining in syslog.
>
> I know the command runs ok on the remote host as I get this:
>
> myhost /usr2/glowe> /opt/csw/libexec/nagios-plugins/check_disk -w 20 -c 10
> DISK CRITICAL - free space: / 1023 MB (52% inode=83%); /usr 917 MB (47% inode=85%); /var 1735 MB (43% inode=95%); /var/run 13530 MB (99% inode=99%); /tmp 13530 MB (99% inode=99%)
> nyhost /usr2/glowe>
>
> My nrpe.cfg file for check_disk looks like this:
>
> command[check_disk]=/opt/csw/libexec/nagios-plugins/check_disk -w 20 -c 10
>
> So what am I doing wrong, to get the "Unable to read output" in syslog?
>
>
>
> ----- Original Message ----
> From: Philip Marcus 
> To: Grant Lowe 
> Cc: nagiosplug-help at lists.sourceforge.net
> Sent: Saturday, October 4, 2008 8:15:21 PM
> Subject: Re: [Nagiosplug-help] Error: Request contained command arguments, but argument option is not enabled!
>
> Hey Grant,
>
> By default, the nrpe daemon does not allow remote command line
> arguments to be passed to it.
>
> To enable this, you'll need to recompile it using something like
> "./configure --enable-command-args".
>
> If you've already done this, make sure the nrpe.cfg file has the option:
>
> dont_blame_nrpe=1 instead of the default which is 0.  (restart the
> nrpe after changing config options).
>
> These details are documented in the SECURITY file packaged in the
> nrpe.tar.gz. Their are security implications with enabling remote
> command line arguments to be passed to nrpe.
>
> Of course, you can bypass all this by setting static warning,
> critical, and partition arguments in the nrpe.cfg file, and just
> calling that command without arguments.
>
> Hope this helps,
>
> Philip
>
>
>
>
> On Tue, Sep 30, 2008 at 11:21 AM, Grant Lowe  wrote:
>   
>>  Hi all,
>>
>> I have a nagios 3.0.3 server running on RHEL 5.2.  The client is Solaris 8 running nrpe 2.10.
>>
>> I get this in the Solaris logs:
>>
>> Sep
>> 30 10:36:08 myhost nrpe[7179]: [ID 396531 daemon.error] Error: Request
>> contained command arguments, but argument option is not enabled!
>> Sep 30 10:36:08 myhost nrpe[7179]: [ID 900267 daemon.error] Client request was invalid, bailing out...
>>
>> But if I run it locally, it comes back fine:
>>
>> myserver /tmp>  /opt/csw/libexec/nagios-plugins/check_disk -w 90 -c 95 /dev/dsk/c0t0d0s0
>> DISK OK - free space: / 1023 MB (52% inode=83%);| /=923MB;1917;1912;0;2007
>> myserver /tmp>
>>
>> Here's what I get from the server side:
>>
>> [root at nagios-test
>> libexec]# /usr/lib/nagios/plugins/check_nrpe -H 172.20.60.50 -t 60 -n
>> check_disk -a -w 90 -c 95 /dev/dsk/c0t0d0s0
>> CHECK_NRPE: Received 0 bytes from daemon.  Check the remote server logs for error messages.
>> [root at nagios-test libexec]#
>>
>> It's
>> seems to me that it's a configuration error, but I'm not sure what to
>> fix.  Please help and don't be too hard on me as I'm kind of new to
>> this.  :-)
>>
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>>     
>
>
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