Don't force AAAA record

[ignoramous]

These solutions involving cname dark-arts may help:

Creating a cert for an IPv4-only DNS name not working

Use the second option for domain validation and add a _acme-challenge CNAME example.com.XyZ2.flydns.net. instead the first option of adding a AAAA record. See the second option in the output of flyctl certs check ... for the exact string to add as CNAME. This works for me with a wildcard domain “*.example.ch”. Validation may take a few minutes. In one case, it took 10+ min until a domain was signed after I had added the _acme-challenge CNAME... .

IPv6 UDP?

Hi, While waiting for support of UDP on IPv6 to arrive, would it be possible to add an option to disable Fly’s DNS servers to return AAAA records to DNS requests for selected hosts in the *.fly.dev. domain? This might provide us a temporary workaround for situations like @tomklein and others had mentioned above. For @thomas @kurt, this is my “Use Case”: I have managed to get TFTP servers build and run on Fly, for ex. at tftpNN.fly.io. Distributed machines connect to them using their PXE networ…