Common ufw Commands

sudo ufw deny from 15.15.15.51

sudo ufw allow ssh

sudo ufw allow from 15.15.15.0/24 to any port 22

sudo ufw reload

sudo ufw allow 80

sudo ufw deny out 25

sudo ufw status

sudo ufw disable

sudo ufw enable

sudo ufw delete deny 80/tcp - delete an existing rule

sudo ufw allow  - allow by service