Whois queries are used to determine the IP address ranges associated with clients. A whois query can be run on most UNIX environments. In a Windows environment, the tools such as WsPingPro and Sam Spade can be used to perform whois queries. Whois queries can also be executed over the Web from www.arin.net and www.networksolutions.com.

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Preventing ID Theft

Identity theft is the intentional use or theft of a person’s private information to obtain goods or services from another entity. “Private” information is the facts about you that are

Wall off the World—Install a Better Firewall in an Afternoon

More advanced firewalls can be time-consuming to install, but they are not difficult to use. Take the time to fortify your defenses. It is really worthwhile.Install a Two-way Software Firewall

How to Detect a Hacker Attack

If a hacker breaks into your computer, just noses around, and makes no changes to your computer, it’s not easy to tell he’s been there. There’s no alert that says,