Your check_command will be run when the check_results go stale.
This should set the status to warning or critical and write a message,
stating the results are not fresh.
example below
<---snip->
#!/bin/bash
#
# Alert on freshness expiry
host=$1;shift
serv="$*"
echo "host $host service
I have several services that are passive only. I am using nsca on the
server and nsca-send on the client.
Icinga2 installed from the icinga repo's
[root@icinp001 ~]# rpm -q -a | grep icinga2 | sort
icinga2-2.1.0-1.el6.x86_64
icinga2-bin-2.1.0-1.el6.x86_64
icinga2-classicui-config-2.1.0-1.el6.x8