Anurag Acharya is an information security researcher, a consultant, and an expert in networks and server security. He has eight years' practical experience with different vendor technologies, such as Cisco, HP, IBM, Avaya, Red Hat, Microsoft Servers, and network security software such as Panda Firewall. He has a keen interest in working with different technologies. He started his career as a hardware and network engineer, and later he worked as a corporate trainer. He trained hundreds of students, engineers, and government employees in Microsoft Servers (Exchange, Threat Management, Voice, and SQL). As his latest Network profile, he managed some datacenter production servers at a reputed company. He also has experience with Active Directory, DHCP, DNS servers, web servers, application servers, Exchange Servers, SharePoint Servers, database servers, and so on with their administration, monitoring, and security. He has a few international credentials including MCSE, MCSA Security, MCSA Exchange, MCITP Enterprise, MCSA on Core Server, CCNA, CCNA Security, CCNP, CCNP Security, CEH, and ACSE (IT security and ethical hacking). Currently, he is working as a freelance ethical hacking trainer and penetration tester with several institutes. He also provides private training online as well as offline. Soon, he will launch a website, www.mrintruder.com, through which he hopes to help students and professionals to explore their knowledge in different technologies. He is also in the process of writing two books on Microsoft technologies: Windows Server 2012 and Exchange Server 2013. These books help the server administrators to manage, administrate, and upgrade servers on Windows Server 2012 and Exchange Server 2013.