We have a website that was hosted by us. We have an A record defined for the site so that subdomain.mydomain.org uses this address 172.30.16.249. The vendor wants us to change the ip address to one of theirs. 10.10.10.10
So that requests to subdomain.domain.org are redirected to their ip addy, 10.10.10.10.
How is this done? Do you define an A record with the ip address 10.10.10.10 in the proper zone file and then setup a CNAME to do the redirect? Or can it be done with just an A record?