Explore the concept of Next Generation Firewalls and learn about OpenAppID, an open-source solution integrating with Snort, in this conference talk from Circle City Con 2014. Gain insights into firewall evolution, from simple to complex environments, and understand the role of Intrusion Prevention Systems. Dive into OpenAppID's features, including application detection, custom rule writing, and file inspection. Discover how to examine output, create application rules, and leverage various detection functions. Enhance your network security knowledge with practical examples and techniques for implementing advanced firewall capabilities.