Hello. I'm trying to get DDNS updates working. I may try to switch to ddclient at some point, which you have documentation for, but right now I'm just trying to get basic functionality working with curl.

When I use the examples you list on the curl docs page, I seem to always get back "unknown" as an answer. Can you suggest how I can debug the problem? I can do my testing with curl, and then I will be able to validate configuration for an automated tool.

nb, I have a registered domain with dynu as the DNS provider. The items I'm trying to update are inside of my domain hosted here. So this is not the common case of updating a host/alias inside of dynu.net that I see so many places.