I've got a nice small VPS from OVH and two domain names (let's call them first.com and second.com). As OVH does not support DNSSEC and CAA records I was informed that I can set up my own DNS server to provide those records for first.com by directing second.com to the dns server (so far I'm right?).
Now, I've followed this guide and basically the zone file is all fine and dandy, but the issue is that how would let OVH know that I wish to use that name server and what data (keys) exactly do I have to provide the registrar to make DNSSEC work properly?
Sorry for the silly question and please let me know if something is unclear.