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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Subnetting an IP address

IP subnetting is a fundamental subject that’s critical for any IP network engineer to understand, yet students have traditionally had a difficult time grasping it. Over the years, I’ve watched

How to Detect a Hacker Attack?

How to Detect a Hacker Attack Most computer vulnerabilities can be exploited in a variety of ways. Hacker attacks may use a single specific exploit, several exploits at the same

10 steps you can take to improve your online security

1. Ensure that you login to an official site * Ensure that you login to an official site (eg. http://www.planetcreator.net) 2. Choose passwords that are hard to guess. Avoid using