Back in the early days of corporate networking, IT departments typically deployed firewalls to keep employees from accessing non-work related content, like social media sites. While content filtering remains part of a firewall’s job, it’s no longer the primary reason for using one. In today’s connected world, firewalls are fundamental to network security. Further, today’s firewall solutions have evolved to respond to companies’ changing needs, enabling organizations to micro-segment networks and protect web-applications.

This is the eleventh part of my syslog-ng tutorial. Last time, we learned about message parsing using syslog-ng. Today, we learn about enriching log messages.