ufw.txt

$ sudo ufw status verbose
Status: active
Logging: on (low)
Default: deny (incoming), deny (outgoing), disabled (routed)
New profiles: skip

To                         Action      From
--                         ------      ----
53                         ALLOW OUT   Anywhere                  
80/tcp                     ALLOW OUT   Anywhere                  
443/tcp                    ALLOW OUT   Anywhere 

$ sudo ufw enable
// or in case that doesn't worked
$ sudo systemctl enable ufw