This monitor ensures that the Operations Manager server can resolve the hostname of the target computer. If the state is unknown, either monitoring has not begun for this object or there are no monitors defined that monitor availability.
An unhealthy state for this monitor indicates some problem with the name resolution of Unix or Linux server.
Some of the problems that could affect the state of this monitor include:
DNS is not configured properly.
Hostname entry in DNS does not match the Fully Qualified Domain Name of the target server.
Check the "Alert Context" tab of the Alert Properties for more information.
View all current alerts from this object using this link:
Ensure that the Fully Qualified Domain Name of the target computer is correct in either the DNS server or in the Hosts file on the Operations Manager Server.