sudo ufw status
Status: active

To                         Action      From
--                         ------      ----
5800/tcp                   ALLOW       Anywhere
5900/tcp                   ALLOW       Anywhere
6000/tcp                   ALLOW       Anywhere
5901/tcp                   ALLOW       Anywhere
6001/tcp                   ALLOW       Anywhere
5800/tcp (v6)              ALLOW       Anywhere (v6)
5900/tcp (v6)              ALLOW       Anywhere (v6)
6000/tcp (v6)              ALLOW       Anywhere (v6)
5901/tcp (v6)              ALLOW       Anywhere (v6)
6001/tcp (v6)              ALLOW       Anywhere (v6)