Linux Firewall Rules

root@MediaManagement:~# ufw status
Status: active

To                         Action      From
--                         ------      ----
Anywhere                   DENY        <PUBLIC_IP>             
<PUBLIC_IP>                DENY        Anywhere                  
22                         ALLOW       Anywhere                  
Anywhere on tun0           ALLOW       Anywhere                  
192.168.1.0/24             ALLOW       Anywhere                  
Anywhere                   ALLOW       192.168.1.0/24            

Anywhere                   ALLOW OUT   Anywhere on tun0          
1194                       ALLOW OUT   Anywhere                  
53                         ALLOW OUT   Anywhere

danger

Make sure you change the default policies

sudo ufw default deny incoming

sudo ufw default deny outgoing