(Optional) Changing the FortiDNS server and port

You can use the default FortiDNS server located in Sunnyvale, USA (IP address: 208.91.112.220), or you can switch to the server in London, UK (IP address: 194.69.172.53).

Communication between your FortiGate and the FortiDNS server uses Fortinet’s proprietary DNS communication protocol.

config system fortiguard

set sdns-server-ip 208.91.112.220

end

The North American server should work in most cases, however you can switch to the European server to see if it improves latency.

You can also change the port used to communicate with the FortiDNS server using the following command:

config system fortiguard

set sdns-server-port <value>

end