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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What are the steps for security evaluation?

The ethical hacking project comprises three phases, summarized as follows: 1. Preparation: In this phase, a formal contract that contains a non-disclosure clause as well as a legal clause to

IP spoofing

IP spoofing is about the most advanced attack that can be executed on a computer system. IP spoofing, if done correctly, is one of the smoothest and hardest attacks on

What is a virus?

A virus is a malicious program that passes from one computer to another in the same way as a biological virus passes from one person to another. Most viruses are