SYSTEM WARNING: 'date_default_timezone_get(): It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected the timezone 'UTC' for now, but please set date.timezone to select your timezone.' in '/usr/share/mantis/www/core.php' line 264
0004514: Blocking Unknown MAC With Static IP - MantisBT Endian Issue Tracker
Just finding a way to block any unknown device configured with static IP and got connected to internet, either via wireless or wired.
Currently, even enabled "Allow Only Fixed Leases" on DHCP setup, if a device was set with static IP, it still able get internet access or access other same zone computers.