check_users: list the users?

[Matthias Flacke]

Jay R. Ashworth wrote:
 > I'm setting check_users (via nrpe) to warn at 1 and CRIT at 3 users --
 > I'm putting this on servers that, typically, have no humans logged in
 > at all.
 >
 > Since that's true, I'd like to have the list of users from who -q
 > returned as part of the status message.
 >
 > a) Is this a not uncommon usage, and when I patch the program, should I
 > therefore post and or submit a patch to do this?
 >
 > b) How long can that status message become without breaking 1) nagios
 > and 2) nrpe?
 >
 > Anyone have opinions, answers, or pointers?

...as a check_multi snippet (uses Nagios3 multiline feature):

$ cat users.cmd
command [ count ] = check_users -w 1 -c 3
command [ who_q ] = who -q | head -1

$ ./check_multi -n users -f users.cmd -r 1
users CRITICAL - 2 plugins checked, 1 critical (users), 1 ok
[ 1] users USERS CRITICAL - 3 users currently logged in
[ 2] who_q mflacke mflacke mflacke

Greetz,
Matthias Flacke

-- 
http://my-plugin.de/check_multi

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