Intrusion Detection The Big Picture – Part III

While insider attacks may cause more damage (because the attacker knows the system assets and what to target), insiders are also usually addressed by traditional security and audit. An insider has a much greater chance of being caught, since you know where they live. So while damaging, insider attacks are infrequent (because of the high risks of...

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Intrusion Detection The Big Picture

NukeNabber can be considered a personal host intrusion detector for stand-alone PC’s, which will notify you of attempted connections to user-defined ports. Legion can be quite hard to find. Most other vulnerability scanners also now look for unprotected shares. In the back of your materials are additional references. (Editor’s note: for students...

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Securing and Auditing Unix

Welcome to Unix and Linux, security for these operating systems is a complete paradigm shift from Windows. Unix has been around a lot longer. The source code for Linux is freely available, so would be attackers are free to examine it and test it for holes such as buffer overflows and deadlock conditions.

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Windows 2000

As we begin to focus on Windows 2000 for the rest of this section, the three primary differences from Windows NT are: Active Directory, Group Policy, and templates. We will first introduce the Active Directory. Years ago, a standards organization called the CCITT (now International Telecommunication Union, or ITU) created a recommendation for a...

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Information Security: The Big Picture – Part V

The World Wide Web has become the de facto communications medium for the Internet. Millions of people use it every day to get information, communicate with coworkers, buy and sell goods, entertain themselves, and keep up to date with current events. However, most of these people have very little knowledge about how the web actually works. On...

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