You won??™t find any utility to block spyware or adware in
earlier versions of Windows either. Server Core does provide rudimentary virus, spyware, and
adware protection.
In addition, even though Windows XP SP2 and above do provide a firewall, some industry pundits
consider it weak at the very least. For one thing, the firewall doesn??™t do a good job checking
both incoming and outgoing data. The firewall in Server Core is significantly stronger and includes
two-way protection.
In some people??™s minds, these three items are the end of any virus and intrusion protection
requirement on a system and they??™ll stop reading this section immediately. However, virus and
504 CHAPTER 21
SECURING THE SYSTEM
intrusion protection only begins with these three types of utilities; you really do need more protection
and you need to perform some tasks manually if you want to keep your system safe, rather
than constantly cleaning up the aftermath of a successful attack.
The utilities in the sections that follow represent a next step. They aren??™t the final word in virus
and external intrusion detection, but they help. You??™ll want to combine these utilities with other
utilities described throughout the book.
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