Note All commands must be run with sudo. # adding a rule ufw {allow | deny | limit} [port]/[proto] ufw {allow | deny | limit} [from ip/host] [to ip/host] [port portnum] # showing rules ufw status [numbered] # deleting rules ufw delete [full rule] ufw delete [rulenum] Examples: # allowing http/https traffic ufw allow 80/tcp ufw allow 443/tcp # allowing wireguard ufw allow 51820/udp # limiting ssh traffic ufw limit 22/tcp # limiting ssh traffic from specific ip only ufw limit from 172.16.99.11 proto tcp to any port 22