Linux Server Network Namespaces and VRF A Practical Guide

In episode 151 of Linux Server Admin, Lucas and Luna dive into network namespaces and Virtual Routing and Forwarding (VRF) on Linux servers. They explain how network namespaces give you isolated network stacks, why they're the backbone of container networking, and how VRFs let you run multiple routing tables on a single server. Using a concrete example—a server with two uplinks to different ISPs—they walk through a policy-based routing setup that sends traffic through distinct paths. They also touch on troubleshooting with tools like ip netns exec and ping, and share a real-world story about debugging a misconfigured namespace that broke a VPN. By the end, you'll understand when to reach for network namespaces versus VRFs, and how to test your setup without breaking production. Tune in for practical commands and clear explanations that you can apply today. This is part of the Fexingo Business podcast network, delivering daily tech and business insights.

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