NRPE unable to read output

[patrick2011]

Hi,

When I run a script local, the script is working fine but when I run it with check_nrpe on the nagios server i'll get "NRPE: unable to read output"

The script:

Code: Select all

/usr/sbin/zoneadm list -ip > /tmp/zoneinfo
msg=

cat /tmp/zoneinfo | while read info
do
zone=`echo $info | cut -d : -f 2`
state=`echo $info | cut -d : -f 3`
if [ "$state" = "running" ]; then
        msg="OK: zone $zone is in running state "
else
        msg="CRITICAL: Zone $zone is in $state "
        $status = 2
fi
echo $msg
done

if [ "$status" = "2" ]; then
        sort $msg
        exit 2
fi
rm /tmp/zoneinfo
exit 0

So, when I use "/usr/bin/zoneadm list -ip" is fails, but when I change this command to e.g. "/usr/bin/ls -la /tmp" I get output from check_nrpe on the nagios server.
Also debug mode doesn't give any extra output.

Can anyone tell what is happening here?

[jsmurphy]

Are you able to post the relevant piece of your nrpe config for executing the script?

You may also want to check that the user that the nrpe client runs as (usually nagios) has sufficient privileges to execute the script correctly.

[patrick2011]

Hi,

When I didn't have the sufficient privileges to execute the script it would give me any output.
It gives me output with "ls -la" but not with "zoneadm"

The problem was an update of the libs on the server.
It gave an segv on zoneadm.

So problem is solved.

[jsmurphy]

Glad you solved the issue.