If your organization only does remote administration, you do not have to install the DNS Server Tools.
However, in a crunch you may find yourself sitting at the server console or remotely using the console and needing to manage the DNS Server directly.
For example, if a user is set up to print to a printer with an IP address of .114, but you need to know what name that printer goes by so you can find it, a reverse lookup can help. If not, use forward and backward for most situations.
Select the first option to allow only secure dynamic updates if you are integrating your DNS with Active Directory.Microsoft Dynamic DNS (DDNS) is a wonderful feature.Combined with Active Directory (AD) it makes managing thousands of DNS records for clients and servers a breeze.However, Microsoft recommends that you use the interface tools to avoid errors, especially if you are integrating DNS with Active Directory.If you want to use the command line to configure your DNS, use the dnscmd command.