If application needs opened port X UDP, or X TCP combination. Is there any potential risk by opening both UDP/TCP as I usually am not sure which one the application uses?
I got an external Debian server. The problem is that my university campus doesn't allow connections to go outside when the port is different than TCP port 22, 80, 443, or UDP port 123. I tested them ...
I've just tested my computer with Gibson's port scan test: The test results stated that my system is "uncommon". It also said that my computer deliberately chose not to return. But I did not do any ...