We needed visibility. We needed flows. We needed a NetFlow collector.
When a mysterious spike threatened to break the bank, a cash-strapped operations team built an enterprise-grade NetFlow collector using only open-source software and a refurbished server. Act 1: The Mystery of the Vanishing Bandwidth The trouble began on a quiet Tuesday. Our small but growing SaaS company, "LucidCloud," had just migrated its core infrastructure to a new colocation facility. The CEO was ecstatic about the new 10GbE uplink. The CFO, however, was not. free netflow collector
By morning coffee, the dashboard was live. And there it was. A single IP address in the engineering subnet was responsible for 47% of the egress traffic. It was a build server, stuck in a loop uploading the same 500GB Docker image to a foreign registry. One docker stop command later, the CFO's phone stopped ringing. Act 4: The Results The ROI: $0 spent on software. $0 on licensing. Just sweat equity. We needed visibility
