define command{ command_name check_passive_placeholder command_line /bin/echo "Waiting for passive result" } define host{ use linux-server host_name web01.example.net alias Web 01 passive sender address 192.0.2.10 active_checks_enabled 0 passive_checks_enabled 1 check_command check_passive_placeholder } define service{ use generic-service host_name web01.example.net service_description NRDP Receive Test active_checks_enabled 0 passive_checks_enabled 1 check_freshness 0 check_command check_passive_placeholder }