Josh Brower has been working in IT since he crashed his first computer at age 14. He writes blogs regularly at http://defensivedepth.com/ on a variety of Information Security topics. He is currently working with a non-profit organization as the head of IT Security, and pursuing his graduation degree in Information Security from STI. Josh is happily married to his wife Mandi. They have one son.
Jim Cheetham has been managing, deploying, supporting, and designing Unix solutions and TCP/IP networks for over 20 years. During this time, he has been part of the establishment of the first SSL-protected website outside the USA, the design and implementation of a high-volume web portal that deliberately had no firewalls between it and the Internet, and has run a busy Managed Network and Security Service looking after multiple government departments.
Jim has worked for global companies such as ICL, Vodafone, and Unisys, along with keeping hands-on with numerous small, interesting, and fast-moving businesses. Jim is currently running Inode Ltd., a New Zealand-based consultancy and service provider specializing in open source solutions for management of networks, systems, and security.
Brad Hedlund is a Technical Solutions Architect at Cisco Systems, Inc. in the company's Center of Excellence for Data Center field sales. Since joining Cisco in 2006, Brad has been helping Enterprise customers design large and small data centers with challenging and complex requirements. Brad has extensive design experience with Cisco's Data Center switching line (Nexus) and Cisco's Unified Computing System (UCS), with specific expertise in server networking and virtualization. Brad Hedlund also maintains a popular blog on data center networking topics at http://bradhedlund.com.
Mohd Izhar Bin Ali, CEH CHFI is an independent security consultant having 10 years' working experience in networking, open source, and the IT Security field. He started his career as a Security Analyst with SCAN Associates, Berhad, and he is one of the team members managing the security services of an Intrusion Detection System (IDS) for Malaysian government's SOC center. After that, he became a trainer (LINUX and Networking) for the largest private education college in Malaysia. Before becoming a freelance security consultant, he worked with FIRMUS Security Sdn Bhd, one of the largest IT security companies in Malaysia. With FIRMUS, he had performed enterprise security assessment to clients (banking, insurance, and government) including web penetration testing, external and internal penetration testing, and wireless penetration testing. Now, takes up freelance jobs in security and also research in the network security field.
He has contributed articles on pfSense (Setup Squid as A Transparent Proxy, Setup VideoCache with Squid) and has also written white papers for The Exploit Database (MySQL Injection using darkMySQLi.py, Howto: DNS Enumeration, Easy Method: Blind SQL Injection).