Labs OMDLabs edition with additional cores and addons.
Nagios/Naemon Nagios or Naemon as standalone core and/or integrated into OMD. Questions on setup and configuration. Enterprise editions are not supported.
CheckMK CheckMK as an add-on and/or fully integrated into OMD as CheckMK Raw Edition (CRE). Questions on plugins, configuration, inventory and integrations. Enterprise editions are not supported.
Distributed setup using naemon and modgearman : 1 central server, 4 remote sites [Nagios/Naemon] (1)
Apt-get upgrade fails: check-mk-agent needs to be reinstalled, but I can't find an archive for it [CheckMK] (5)