Monitor that a Unix Server is not reachable
In the Windows Monitoring the Management Pack has two different monitors, which monitor "heartbeat failure" and "Computer not reachable".
In the Unix/Linux monitor you only provide a heartbeat monitor that run automatically the Task for an ICMP ping. We also need the monitorinformation if the System is not reachable because this is an important information for the Unix/Linux admins.
Please check my proposed solution here: https://stelianposteablog.wordpress.com/2015/06/05/improving-unixlinux-heartbeat-monitor/