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HAProxy offers a powerful logging system that allows users to capture information about HTTP transactions. As part of that, logging headers provides insight into what's happening behind the scenes, such as when a web application firewall (WAF) blocks a request because of a problematic header. It can also be helpful when an application has trouble parsing a header, allowing you to review the logged headers to ensure that they conform to a specific format.
In this post, Phil Gervasi uses the power of Kentik’s data-driven network observability platform to visualize network traffic moving globally among public cloud providers and then perform a forensic analysis after a major security incident.