Nope, you are correct. Port knocking adds more bits to whatever security you already have, so it's a win. And, of course, for any discussion of security, you n

Nope, you are correct. Port knocking adds more bits to whatever security you already have, so it's a win. And, of course, for any discussion of security, you need to specify what your threat environment is. Are you just locking down your home router, or are you running the first line of cyber defense for the CIA? He keeps moving the goalposts in order to knock down his opponents, which is why I can't take him seriously.