I ran a port scan in Shields Up website (https://grc.com/x/ne.dll?bh0bkyd2
) and at http://www.auditmypc.com/freescan
. In both cases I get a result that my port 22 is dangerously open.
1. How can I find out what software opened up that port? It used to be safe (I would get 100% Stealth mode results).
2. How do I deal with this? Should I close it manually via ZoneAlarm or do something else?
3. If closing it manually is indeed the only way to go about it - HOW do I do that ZoneAlarm Pro 5.5?
4. Bonus: some p2p software (like eMule) suggest we open ports for that software. Is that safe? Can you do that without compromising your system's safety? Can you open a port without losing Stealth mode in such port scanning tests?