https://forum.netgate.com/topic/113459/acme-nsupdate-supported-dns-providers/1
ACME nsupdate supported DNS providers | Netgate Forum
Mar 25, 2017 - I've read through the documentation on the new ACME package for Lets Encrypt certs. Reading through the various methods for verification, it looks like nsupd...
dns providersacmensupdatesupportednetgate