Freeze break request: allow private cloud to use unbound instances for recursive dns
I'd like to request a freeze break to allow our unbound instances to
serve recursive dns to our private cloud instances. They need an
external dns server to do this and I think it's safer to let unbound do
this than our bind servers.
Changes consist of enabling udp and port 53 on the unbound instances,
then setting a firewall that only allows the external ip's of the
private cloud to access them. We could expand this to more machines
later if we find the need.