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ahmadking22
Explorer II
February 2, 2025
Solved

use dyndns.org inside fortigate

  • February 2, 2025
  • 1 reply
  • 3232 views

hello

I have FortiGate40F and already I have DDNS from x.dyndns.org

how I can configure this DDNS from FortiGate (from GUI  only server from fortiddns.com )

for example when I write x.dyndns.org with specific port from browser forwarding to server inside my Network 

Best Regards 

Best answer by dingjerry_FTNT

Hi @ahmadking22 ,

 

I guess that you are configuring DDNS with another provider than FortiGuard DDNS.

 

If so, please check this KB:

 

https://community.fortinet.com/t5/FortiGate/Technical-Tip-How-to-configure-Dynamic-DNS-FortiGate/ta-p/208780

 

In this KB, it is said:

 

dingjerry_FTNT_0-1738526979095.png

 

1 reply

funkylicious
SuperUser
SuperUser
February 2, 2025

Based on your request, I guess you want to create a VIP, which can be accessed using the DDNS pointing to the public IP of the FGT and based on a specific port to an internal server, https://community.fortinet.com/t5/FortiGate/Technical-Tip-Using-Virtual-IPs-to-configure-port-forwarding/ta-p/198195 

 

L.E. if the WAN ip is dynamically assigned,

  • Use the external IP of 0.0.0.0 when creating a VIP for a FortiGate unit where the external interface IP address is dynamically assigned.
"jack of all trades, master of none"
ahmadking22
Explorer II
February 2, 2025

Many Thanks but  IScreenshot 2025-02-02 205103.jpg need same picture 

funkylicious
SuperUser
SuperUser
February 2, 2025

Sorry, I dont really understand what you are trying to do.

fortiddns.com it's a public dns so any computer with a dns server configured can query and resolve it.

 

L.E.

If you want for the FGT to act as a DNS server for internal computers to resolve dns entries into private IPs instead of public, you can set it up to act as a dns server but you would need to point on the computers its internal IP in order to work, https://docs.fortinet.com/document/fortigate/6.2.16/cookbook/960561/fortigate-dns-server

"jack of all trades, master of none"