please help me. need answers any body can help......? what is domain controller ? why we need domain controller? Role of Domain controller in windows server 2008 ? Key Features of Domain Controller? HOW DOMAIN CONTROLLER WORKS? Architecture of Domain controller?
These are a lot of questions to answer in a single response.
A domain controller is a server role that is responsible for authentication and authorizatoin services in a domain. What is a domain? A domain is a centralized system that stores the security principles for your network resources (user, computer, group accounts, etc..).
A domain controller is generally implemented once you have 10 or more computers on the network, where a simple workgroup is too difficult to manage with repect to securing your accounts, resources, services, etc..