Fast Guide: Active Directory security This guide offers plenty of must-know tips on maintaining a secure AD environment, starting with the basics and moving on to more advanced practices.
All your servers are important -- file servers, application servers, Web servers -- and securing them is essential to protecting the data and operations of your enterprise. But most of those servers can be isolated or replicated or backed up. If you run a full Windows network, chances are the one server on your network you can least afford to lose is your domain controller. As an essential component of your Active Directory, domain controllers house vital information regarding your Windows network. A cracker that compromises a domain controller can gain access to any system he chooses.
These eight tips will help you form your domain controller policies, secure your domain controllers, check your work and test that your DCs are secure.
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Tip 1: 
