lol...
SuperTramp83 or Crocodile Dundee ??!
GNUuser i'm no network specialist and there is some by far more experienced
members here that use iptables and have webservers ect.
Port 53 is DNS
80 443 HTTP/HTTPS
https://en.wikipedia.org/wiki/List_of_TCP_and_UDP_port_numbers
http://blog.simple-help.com/2011/12/ports-vs-protocols-80-and-443/
Quote:DNS can’t tell you what port a web server is on, only the IP address,
so your browser always has to assume that the web browser is going to be
there on port 80. When you have another protocol like HTTPS, it specifies
its own default port (443) so that means when you use HTTPS to connect to a
website your browser is again always going to have to just assume its going
to be there on port 443.
https://doc.pfsense.org/index.php/Blocking_DNS_queries_to_external_resolvers
https://unix.stackexchange.com/questions/209926/how-to-check-my-dns-chain
