Build Your Own Firewall With eBPF XDP

In this video, we delve into the exciting world of eBPF and XDP, two powerful Linux technologies that allow you to create lightning-fast, flexible, and efficient networking applications. We'll start by introducing eBPF and XDP, explaining their potential and various use cases. Next, we'll walk you through setting up a basic packet viewer, including crafting an eBPF program and a Python script to interact with it.

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As we progress, we'll explore advanced XDP actions that give you unparalleled control over packet processing. We'll then demonstrate how to create a simple yet effective firewall using XDP_DROP, and we'll enhance its observability to gain insights into the packets being dropped.

Additionally, we'll discuss offloading your XDP program to your Network Interface Card (NIC) for even greater performance, explaining the benefits and potential compatibility issues. By the end of this video, you'll have a solid understanding of eBPF and XDP, empowering you to harness their capabilities for your next high-performance networking project.

Join us on this journey to unlock the endless possibilities that eBPF and XDP have to offer, and don't forget to like, comment, and subscribe for more amazing content.

Video Contents:
0:00 - Introduction
0:58 - Basic Packet Counter
4:02 - Advanced XDP Actions
5:00 - Build Your Custom Firewall
6:40 - Implementing Observability
7:46 - Offload To Your Network Interface Card
10:28 - Outro