This is another change you would be noticing after upgraded Forti OS 5.x series, like how we had to change switch mode to interface mode by CLI.Below screenshot was taken in Forti OS version 5.0 (which will be similar in 5.2 also) and other dynamic DNS providers were not listed as shown. Once you have configured Dyn DNS service as shown above, the WAN port of the device will be monitored and changed accordingly with the name and IP.
At “Username” and “Password“, specify your username (username is required for all types except Namecheap and Free DNS) and password.
At “Description“, enter an appropriate description. Then press the “Save” button to save the settings and, on the next page, press “Apply Changes” to apply the changes if necessary. If the cached IP is green then the hostname was successfully updated.
The following DDNS servers can be used to configure Dynamic DNS in Forti OS 5 and org — supports org and
Dyanmic DNS (DDNS) is a method of automatically updating a name server in the Domain Name System (DNS), often in real time, with the active DNS configuration of its configured hostnames, addresses or other information. At the administrative levels of the Internet, “dynamic DNS updating” refers to systems that are used to update traditional DNS records without manual editing.
The only way available to configure Dyn DNS or other providers in Fortigate 5 and 5.2 OS is by command line.1) Connect to the device by telnet or SSH or GUI terminal and type the following command.* edit 1 – 1 is the index number of DDNS settings. Read Also: How to enable ping response in Windows 8.12) Typing, Make sure to enter correct index number ( eg 1) to modify.