We have external DNS namespace ‘xyz.com’ hosted on external DNS and internal DNS namespace ‘mycorp.xyz.com’ hosted on internal DNS
We have web server in the LAN available on internal private IP address
Web server’s ‘private IP’ is published on Internet on public IP address with hostname ‘www.xyz.com’
How can we configure DNSs so when users in the LAN want to access ‘www.xyz.com’
they are directed to the web server’s internal private IP address, and users from the Internet are directed to the web server’s public IP address. We do not want to maintain same ‘xyz.com’ zone on the internal and external DNS servers.