Check out ShieldsUP!. https://www.grc.com/x/ne.dll?bh0bkyd2
You can do a scan on the first 1056 ports, a specific port, or the most common ports to see if they are stealthed, closed, or open. My home computers show all of them stealthed, even when I WANTED to have port 22 open on one machine to SSH into from work.
I tried a good old fashioned ssh and it didn't work, so I'm happy for now. Gotta leave for the game soon.
