Jon is an experienced IT professional with over 10 years of expertise in the industry. He is a published author, technical consultant, and speaker residing in Charlotte, North Carolina. Jon's previous published works include RADIUS, Learning Windows Server 2003, Hardening Windows, and Using Small Business Server 2003 for O'Reilly and Apress. His work is seen regularly in popular periodicals such as Windows IT Pro Magazine, SecurityFocus, PC Pro, and Microsoft TechNet Magazine. He speaks around the world on topics including networking, security, and Windows administration. Jon brings an enormous amount of knowledge to each of his courses and priceless experiences that he gracefully shares with you to assist you in your training. His love for technology and attention to details will help you manage the most complex network environments today.