Access Rule Question regarding DNS in Port/Services
Apologies for this silly question - when configuring an access rule, I can set the Port/Services under Destination. I am currently interested in setting up an access rule for DNS only, but there are two options, DNS (Name Service) and DNS (Name Service) TCP. There is a third called DNS (Name Service) UDP but I think I do not need to use that particular service.
Is someone able to tell me the differences between the settings? I can't find the proper info on the Sonicwall Help.