Hi all
This may be a basic question for some of you but I can't find the answer I'm looking for, so I'm asking your help.
We have a secure network which is behind multiple firewalls with a proxy system and have a website for internal and external users which is hosted externally. The site is moved from time to time to a different server without any prior information
to us and we only know because it becomes inaccessible to internal computers, even though an external computer receives the new DNS entry and can use the website. This happens because our internal computers are accessing our own DNS which has the webbsite
manually entered as a forward lookup and only changes when we go in to update it.
The question is, in the event that the website has moved, preventing our internal DNS from being able to find it, whether we can make our system go to a public DNS server to obtain the updated address, thus allowing the users to access the site as if nothing has happened. We then need our DNS record to update itself to the new IP address or alert us that it has changed (preferably with the new address) so that we can update our internal DNS.
Many thanks.