windows server hosted on a VM virtual oracle, which entails allowing remote connections to the computer, setting static ip and allowing Dns server, setting accurate time zone, installation of server roles and features such as Active Directory Server, DHCP server and DNS server.
Adding Service Restore mode password.

Dns-Domain name server
ADS- Active Domain Server
DHCP -Dynamic Host Configuration.

windows server is a server operating system that enables computer to handle network roles such as print server, domain controller, web server, and file server.

source by Michael Kuda

linux dns server