ufw enable code example
Example 1: disable ufw
$ sudo ufw disable
Firewall stopped and disabled on system startup
Example 2: enable ufw ubuntu
sudo ufw enable
Example 3: allow ip through ufw
sudo ufw allow from 15.15.15.0/24 to any port 22
$ sudo ufw disable
Firewall stopped and disabled on system startup
sudo ufw enable
sudo ufw allow from 15.15.15.0/24 to any port 22