is it neccesary to block the public fron using dns port and hw can i do that?
yes, that is good practice to make local services not available to general public. Block port 53 UDP and TCP from outside networks.
is it neccesary to block the public fron using dns port and hw can i do that?
yes, that is good practice to make local services not available to general public. Block port 53 UDP and TCP from outside networks.