I want to open some ports on my family's network, for game servers and other protocols like HTTP and FTP. My dad, however, thinks this is unsafe (for him).
Is it easy for a hacker to get in to our network using these open ports? If he does, does he have access to the whole network or just my computer?
I was lucky, my dad let me have unknown 5-digit ports, but I still want to use "normal" ports.
I don't really care if a hacker gets in to my computer, but my dad does. Does the hacker have access to my dad's computer with no open ports? Or only my computer?
If the hacker can access my dad, can I use 2 routers to make his computer not hackable by hacker? What I mean is that I have the ports forwarded from the family's router to my own router and that router directs them to my own computer (server). Does this jail the hacker into just my "unsafe" network?