puzzling no output from nrpe run of check_load

[Eliezer Croitoru]

so it seems that the check_load needs shell rights to show any output 
what so ever also the --help stuff.
it's kind of understandable.

Eliezer
On 30/04/2012 20:39, Peter N. Steinmetz wrote:
> Thanks for the suggestion, gave that a try, or more precisely:
>
> sudo su nagios -c "more /proc/loadavg"
>
> after removing the password for user nagios and setting the shell to /bin/false.
>
> This still produces no output.
>
> Very peculiar. I guess there must be something wrong with the authentication or setup on these machines, but can't figure out what is going on here.
>
> auth.log contains
> "Successful su for nagios by root"
> right after this so that part seems all right.
>
> The systems are using ldap pam authentication for other users, though nagios and other such system accounts are local in the /etc/passwd and /etc/passwd files. The local accounts seem to work fine for this command if they have a password and shell is set to /bin/bash, rather than /bin/false.
>
> cheers,
> Peter
>
>
> On Apr 27, 2012, at 9:22 AM, David Harbaugh wrote:
>
>> 'su -' makes the shell a login shell ... which requires a real shell, not /bin/false.
>>
>> What if you do this?
>>
>> sudo su nagios more /proc/loadavg
>>
>> Skip the -, which should run more directly, which should work even with /bin/false listed as the shell.
>>
>> If that works, then you should be able to modify your nagios command definition the same way ...
>
>
>
>
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-- 
Eliezer Croitoru
https://www1.ngtech.co.il
IT consulting for Nonprofit organizations
eliezer <at> ngtech.co.il

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