Re: DHCP

On Aug 3, 2025, at 7:42 AM, Rodrigo Prieto <rodrigoprieto2019@gmail.com> wrote:

Hello, I wanted to know if there is any way to configure the DHCP server to send DDNS updates to a Bind9 server, similar to how Kea updates the forward and reverse zones. I am testing the DHCP server function and it is easier to configure than Kea — with medium-complexity configurations, Kea already requires a large JSON file — so I am looking into this alternative.

That's good to hear. I found Kea confusing, limited, and hard to configure. FreeRADIUS was easier, but that's perhaps my bias. The server doesn't have native support for DDNS. But you can run a shell program to do the update. See mods-available/echo for an example. Alan DeKok.