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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TCP/IP Tutorial

This tutorial is intended to supply a brief overview of TCP/IP protocol. Explanations of IP addresses, classes, netmasks, subnetting, and routing are provided, and several example networks are considered. The

What Damage Can Hackers Do?

Hackers like to subvert computer security without permission. They are cyber criminals. This can mean gaining access to a computer across the Internet for illicit purposes. They might engage in

Best Server Security Configuration

Best Server Security Configuration. Summary 1) Upgrade Apache/PHP, MySQL, OpenSSH, OpenSSL, cP/WHM etc2) cP/WHM Configuration3) SSH Access4) Mod_Security5) Firewall6) DDoS Protection7) Rootkit8) PHP Configuration9) Other10)The End Author: QKrun1x 1) Upgrade