236 Chapter 4 • Configuring the Vista Security Features
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Windows Firewall
One of the reasons for the large number of security issues with earlier Microsoft oper-
ating systems was the lack of any type of firewall. Windows XP was the first operating
system to be shipped with a firewall; however, it was not turned on by default until
the release of XP Service Pack 2. Server 2003 also has the same firewall available;
however, it is not turned on by default. The most likely reason Server 2003’s firewall
is not activated by default is that servers are often placed on secure internal networks.
XP, on the other hand, might be placed
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