title: Monitor uptime of operating system agents: linux author: Mathias Kettner <mk@mathias-kettner.de> license: GPL distribution: check_mk description: This check is always OK and simply outputs the uptime of the target systems (when the last boot was and how much time has elapsed since). It is always OK. perfdata: The uptime in seconds. inventory: One check per system is created if the agent has a section {<<<uptime>>>}.