External Commands Reference - DISABLE_HOSTGROUP_PASSIVE_HOST_CHECKS
DISABLE_HOSTGROUP_PASSIVE_HOST_CHECKS;hostgroup_name
Disables passive checks for all hosts in a particular hostgroup.
#!/bin/sh
# This is a sample shell script showing how you can submit the DISABLE_HOSTGROUP_PASSIVE_HOST_CHECKS command
# to Naemon. Adjust variables to fit your environment as necessary.
printf "[%lu] DISABLE_HOSTGROUP_PASSIVE_HOST_CHECKS;hostgroup1\n" `date +%s` > /var/lib/naemon/naemon.cmd