Network Security - Network security is essential for homes, government organizations, and enterprises of all sizes. The number and types of attacks are enormous, and the devices used to defend against them necessarily complex. This book provides an overview of network security and covers some of the test methodologies used to assess the effectiveness and performance impact of IPS/IDS, UTMs, and a new generation firewalls using attacks such as DoS/DDoS, as well as known vulnerabilities and malware. The last section of the book is dedicated on IPsec VPN test methodologies.