External port scan


Hi all

Looking for a tool/website to do an external scan of a firewall to check what port are open?


Spin up a Digital ocean droplet and use nmap.


I’ve always liked ShieldsUp for some basic port scanning.


Also if you are using snort or suracata turn them off or the ip your scanning from will quickly get blocked.


For a quick and minimal solution you can try you get signal, it only tests TCP ports but is pretty good.