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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Make your own Hardend Internet Firewall

Make your own “Hardend Internet Firewall” using that forgotton PC in your basement. Yes.. You know the PC I am talking about. We all have them. Remember that $3000 Pentium

Software Firewalls: Programs That Stop Hackers

A good software firewall for home users should have the following attributes: * It’s easy to configure. * It’s frugal with system resources so it doesn’t bog down the computer.

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,