The author, Aliyu Ahmed Ahmed is a Microsoft Certified Technology Specialist, a Cisco Certified Network Associate andan IT Business Process Outsourcing consultant. He has a B.Sc in Economics and a Diploma in Computer Science from same university. His other IT certifications include MCP, MCDST and Linux certification from an Indian (Kolkata) Software Training Facility called Tathya PVT LTD. He is also an occasional columnist in the Guardian Newspaper and a contributing editor in Communicationsweek, an IT magazine. Ahmed has five years field experience in Network Support and has over the years worked in the following IT firms; KarRox Training Institute as MCSE Instructor, Aptech World Wide/STPL (Software Technology Park Limited), as a Networking Instructor/Security Administrator, Sphinx Interactive Solutions as a Technical Support Engineer, and Meridian Technologies as a CCNA/Security Instructor. He is currently working with Webb Fontaine as a site support engineer, a Geneva based ICT