HI Dhanushka, By design, we can not create the reverse mapping zone when the network mask or subnet mask does not fall in an Octet Boundry, this RFC-2317 compliant. Please refer to KB# 315 for detailed information about this. Regards.
Hello Wasfi, To begin with, can you please let us know the NIOS version that you are running on the appliance? We have seen cases in past where upgrade to the latest version has fixed the issue for the scheduled restarts. Regards, Manu M