Knowledge Base

Are you being blocked by aggressive firewalls?

WireGuard runs over UDP and sometimes firewalls will block our default UDP port. However there are a few UDP ports that are often allowed through firewalls:

UDP/53: The domain name system (DNS) protocol commonly uses this port and is essential to internet traffic.

UDP/443: The QUIC protocol uses this port and is becoming more commonly used to make internet traffic more efficient.

NoJackVPN allows for the port to be changed to either 53 or 443 and our servers will accept connections to those UDP ports.

Edit config files and change the Endpoint port to 53 or 443.

UDP 53 example:

Original (example)

[Peer]
PublicKey = pt/xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx=
PresharedKey = xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx=
AllowedIPs = 0.0.0.0/0,::/0
Endpoint = 1xx.x1.xxx.xxx:53028

Change the Endpoint = line to connect on UDP port 53:

[Peer]
PublicKey = pt/xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx=
PresharedKey = xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx=
AllowedIPs = 0.0.0.0/0,::/0
Endpoint = 1xx.x1.xxx.xxx:53