The explosive growth and deployment of networking technology poses many security challenges to networking professionals including network administrators and information systems managers. Often, network administrators and managers learn about specific tools and techniques that are applicable to specific systems or situations only, and hence, have a great deal of difficulty in applying their knowledge of security when a technology, a system, or a situation changes. Network Security, Administration and Management: Advancing Technology and Practice identifies the latest technological solutions, practices and principles on network security while exposing possible security threats and vulnerabilities of contemporary software, hardware, and networked systems. This book is a collection of current research and practices in network security and administration to be used as a reference by practitioners as well as a text by academicians and trainers.