I have a (public) domain and an internal DNS server for my (internal) subdomain zones. Is it OK to have a public CNAME point to an interal domain name?
- Let's say
example.comis the public zone (managed by my webhoster) with some publicly reachable servers (e.g.
local.example.comis the interal zone (internal DNS server points to private IP addresses)
Now I moved a deprecated public service into my intranet. Are there any objections to have a CNAME like
service.example.com -> deprecated.local.example.com? DNS requests from the internet will always get a
NXDOMAIN. The main benefit for me is that internal consumers of the deprecated service can use the same URL as before.