> IIRC, Netflix OSS published some tools quite some time ago to support multiple DNS providers but I don't know/remember if they tackled the availability problem.
The classic way of doing this is AXFR (your own DNS server is a "hidden master" and the DNS providers are the slaves).
The problem is you won't be able to have redundancy at the registrar level, but that has historically at least been less of an issue.
The classic way of doing this is AXFR (your own DNS server is a "hidden master" and the DNS providers are the slaves).
The problem is you won't be able to have redundancy at the registrar level, but that has historically at least been less of an issue.