Update ACME DNS-01 TXT using (eg.) curl possible?

[stha]

My registrar is using a custom script for updating the _acme-challenge TXT, and none of the available services allows just running a command, eg. curl or ddclient. None that I can find anyway.

Is it possible in some other way?

Thanks!

[meyergru]

If you want to keep that registrar, and if you are able to create arbitrary DNS entries, you could use DNS alias delegation to another domain on a FreeDNS provider for _acme-challenge.yourdomain.com.

Your registrar should put up a script and see that it gets included in ACME.sh. When the new version gets included in OpnSense, it can be used natively.

What registrar is that?