Hello, I am monitoring a few dozen of servers and I'm really satisfied with nagios. This is a great tool. However, there's one (actually more than one) thing that I can't figure out : I define a service : define service{ use generic-service hostgroup_name linux-servers service_description Time check_command check_time!public } This service applies to a host group so that I don't have to define the service for each server. The command doesn't matter but for completeness here's what it does : it compares the time on a remote server (snmp) to the local time and report the difference. There is one server that is rebooted every night, and I would like not to receive notifications during that time. So I have defined a notification period. Now, the question is : how do I apply the notification period to the service, but for only that one host ? Maybe I have to create a service for each host, so that I can specify different time periods for each service. There must be a way but I can't figure it out. I tried to define the same service on the host I would like not to receive notifications for, but Nagios complains about duplicates. Thanks for any help. Regards, David