Install plugin check mk

[plugin list]

root@monitoring:~# cd /tmp
root@monitoring:~# su - monitoring
OMD[monitoring]:~$ wget https://exchange.checkmk.com/packages/apcups-apcaccess/2533/apcups_apcaccess-2.3.0.mkp
OMD[monitoring]:~$ mkp add apcups_apcaccess-2.3.0.mkp
OMD[monitoring]:~$ mkp enable apcaccess
OMD[monitoring]:~$ mkp list