ufw setting

gistfile1.txt

$ sudo ufw status
Status: inactive
$ sudo ufw default deny
Default incoming policy changed to 'deny'
(be sure to update your rules accordingly)
$ sudo ufw allow ssh
Rules updated
$ sudo ufw enable
Command may disrupt existing ssh connections. Proceed with operation (y|n)? y
Firewall is active and enabled on system startup
$ sudo ufw status 
Status: active

To                         Action      From
--                         ------      ----
22                         ALLOW       Anywhere