Windows clients not updating dns records
Network administrators may delegate authority over sub-domains of their allocated name space to other name servers.
This mechanism provides distributed and fault tolerant service and was designed to avoid a single large central database.
It associates various information with domain names assigned to each of the participating entities.
Most prominently, it translates more readily memorized domain names to the numerical IP addresses needed for locating and identifying computer services and devices with the underlying network protocols.
The wizard is now configuring you server for remote web access and adding the domain name to your Exchange server.
So we choose “I already have a domain name that I want to use.” You can choose to let the server manage your domain name, only this is preserved for a couple of domain name providers.
If you would like to use this option you have to move your domain name to one of these providers.
In this case I will choose for “I want to manage the domain name myself.” You have to configure your DNS records (if needed) manually.
Now we have to fill in our domain name with extension.