Just a list of useful commands for UFW!
Enable the firewall
ufw enable
Allow TCP on port 22 from specified IP address
ufw allow from 192.168.1.1 proto tcp to any port 22
Allow a range of tcp ports
ufw allow 40110:40210/tcp
Check which ports are enabled with UFW
ufw status numbered
to remove a specific entry, after checking with the above status command
ufw delete 22
