Server Core contains only the software required to create a server that
has the Active Directory (domain controller), Active Directory Lightweight Directory Services
(AD LDS) (formerly known as Active Directory Application Mode), Domain Name System
(DNS), Dynamic Host Configuration Protocol (DHCP), File, Media Services, or Print roles. You
obtain a fully functional server, but because the server doesn??™t include a lot of baggage, it
requires a lot less time to maintain. Notice that this list doesn??™t include a database server. Some
server roles still require a GUI and you have to consider that issue when installing Server Core.
Reduced Security Risks
Security is a major problem for most companies today. Microsoft is
promoting the idea of a reduced attack surface in many of their products. You only install what
you actually need to perform a task. By reducing the amount of software on a system, you also
reduce the number of items that someone can attack. A successful attack requires a security hole
and, with fewer pieces of software, there are fewer holes to exploit. Because it lacks a GUI, Server
Core has the potential to significantly reduce the security risks for your server??”in fact, given
that today most security holes rely on a graphical utility such as a browser, you may find that
Server Core has almost no security threats to consider.
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