Checkmk

• Host went downRuns when a host goes DOWN or UNREACHABLE in Checkmk, for every host or those in a host group, such as to open a ticket. Hosts in downtime don't start it, and hosts already down when the workflow is turned on don't either.
• Service went critical or warningRuns when a service goes CRIT or WARN in Checkmk (or gets worse, from WARN to CRIT), with what its check said. Services in downtime or on a host that is down don't start it.
• Problem recoveredRuns when a host that was DOWN or UNREACHABLE is UP again, or a service that was CRIT, WARN or UNKNOWN is OK again, such as to close a ticket.

• List problemsList the problems going on now as rows: hosts down or unreachable and services critical, warning or unknown, with what each check said, worst first.
• Get host statusGet a host's state (UP, DOWN or UNREACHABLE), its address and groups, how many of its services are OK, warning or critical, and its service problems.
• Get service statusGet a service's state (OK, WARN, CRIT or UNKNOWN), what its check said and whether someone has acknowledged it.
• Acknowledge problemAcknowledge a host's or a service's problem with a comment, such as a ticket number, so Checkmk shows someone is on it and stops notifying about it.
• Schedule downtimeSchedule downtime for a host, or some of its services, for a change window, so their problems don't notify anyone.
• Remove downtimeEnd a host's or service's downtime now, by its ID from 'Schedule downtime', or every downtime on the host or service.
• Reschedule checkRun a host's or a service's check now, such as after a fix, rather than at its next interval, and get the new result.
• Create hostAdd a host to Checkmk in a folder, with its IP address, such as from an asset system. Discover its services and activate changes to monitor it.
• Update hostChange a host's IP address, alias or labels, or move it to another folder. Blank fields are left as they are; activate changes to apply.
• Delete hostDelete a host from Checkmk, such as when a server is retired. Activate changes to stop monitoring it.
• Discover servicesScan a host for its services, such as its disks and network interfaces, and monitor the new ones, as Checkmk's Service discovery page does.
• Activate changesActivate the pending changes, such as hosts added or deleted, so Checkmk monitors them that way, and wait until it's done.
• List hostsList the hosts in a folder, with their IP address, labels and state.
• List host groupsList the host groups, with their hosts and how many are down.

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