I have a monitoring platform installed under a RHEL 6.5 OS in a virtual machine (VMWare EsXi 5.1) consisting of nagios 4.0.7, mrtg 2.17.4 and cacti 0.8.8b. I was upgrading my contacts.cfg file and my timeperiods.cfg file in order to make the on call rotations automatic and I still find it manual in the way that you can't have a calendar in which nagios takes a look to update the timeperiods and contacts right away.
I was wondering if anybody knows a plugin or a way to make a link between a calendar and nagios so that nagios is updated by modifying the calendar.