Difference between check_multi output on host and output received by chech_by_ssh

[Tim Edwards]

On 27/10/10 13:39, Marc Powell wrote:
> 
> On Oct 27, 2010, at 4:04 AM, Tim Edwards wrote:
> 
> snip...
> 
>> However when I run it from the nagios server I don't see the output from
>> our sendmail mailqueue check, which is the last check listed in our
>> /usr/local/nagios/checks/systemhealth.cmd file:
>>
>> <td></td><td></td><td>system_mailqueue</td><td></td></tr></table></div></div>|check_multi::check_multi::plugins=11
>> time=0.309348 system_load::check_load::load1=0.000;10.000;20.000;0;
>> load5=0.000;8.000;16.000;0; load15=0.000;6.000;12.000;0;
>> system_rootdisk::check_disk::/=1786MB;9420;9717;0;9916
>> system_allpartitions::default::/=1786MB;9420;9717;0;9916
>> /diska=150MB;9575;9877;0;10079 system_swap::check_swap::swap=0MB;0;0;0;0
>> system_users::check_users::users=2;15;25;0
>> system_time::check_ntp_time::offset=-0.002565s;60.000000;120.000000;
>>
>> Full commands and output at http://pastebin.com/vEWBa033
>>
>> Anyone have any ideas what could be causing the difference?
> 
> For your local test, you're running check_multi as 'root', which has permission to access sendmail's queue, whereas when nagios does it, it's being run as the 'nagios' user, which does not have access?
> 
> Your likely best course of action is change check_mailq to use sudo when calling /usr/bin/mailq and configure sudo to permit it. Google has quite a bit of info on 'nagios check_mailq permissions' but this page looks useful to you --
> 
> http://www.rickwargo.com/category/nagios/
> 
> Note also that you'll need to set '!requiretty' in sudoers as well.

Thanks, I had actually been running the test as nagios as well but
probably copied and pasted whatever was last in my terminal.

Anyway it looks like it's the requiretty thing, although I can't get the
configuration option right in /etc/sudoers to stop sudo insisting on
having a TTY:
Defaults !requiretty
Doesn't seem to work.

Tim Edwards

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