I have set my firewall
firewall rules as follows:
Default: deny (incoming), allow (outgoing), disabled (routed) To Action From -- ------ ---- OpenSSH (22/tcp) ALLOW Anywhere Nginx Full (80,443/tcp) ALLOW Anywhere
But if I make a
nmap scan it shows me the following ports are open (or also
ufw showing me a different result if by defauls all ports are closed except ssh(22) and nginx (80, 443) and why are two
closed ports shown? shouldn't all other closed ports be also shown then?