Hello,
One question has come up with my colleagues about having to restart nagios every time we make a change. Is there some way to do this without it restarting the daemon.
I’m also interested in how this works with a distributed setup with NDOutils as we’ll have many nagios servers in the long run.
Thank you.
use nagios reload, and DO NOT USE restart. (if you have to restart use stop/start). Restart has given many problems and i’m not sure they ever got fixed with processes remaining alive and thus having multiple instances of nagios with different configurations, not getting checks results and similar problems. 
Thanks for your quick response.
By the way if you enale the retain data between restarts options you should have almost no problems in stopping/starting the daemon