Overview

Master the Linux Kernel Without Writing a Single Kernel Module Have you ever wanted to see everything your Linux system is doing-every syscall, packet, and scheduling decision-without crashing the kernel? Have you struggled to debug performance issues, enforce runtime security, or observe production systems at scale using tools that feel opaque, limited, or outdated? Do you want to operate at the same level as elite kernel and security engineers-but without years of trial, error, and undocumented tribal knowledge? If you work close to Linux, you already know the pain. Traditional observability tools miss critical context. Kernel modules are dangerous, hard to maintain, and risky in production. Performance regressions appear without warning. Security incidents happen faster than logs can explain. You are left stitching together partial answers, hoping nothing breaks under load or during an upgrade. You need deep visibility, strong guarantees, and production-grade control-all at once. The Complete eBPF Handbook is the definitive guide to solving these problems. This book takes you from foundational principles to advanced, real-world implementations of eBPF, the technology reshaping Linux performance, networking, observability, and security. It does not stop at theory. It teaches you how the kernel actually works, how the verifier really thinks, and how to build tools that survive real traffic, real attacks, and real kernel upgrades. What makes this book different is its scope and rigor. It teaches everything: verifier internals, map semantics, helper design, CO-RE mechanics, tracing, XDP, LSM integration, debugging, testing, and fleet-scale operations. Every concept is grounded in production realities and reinforced with hands-on labs and working code. By reading this book, you will: Gain precise, low-overhead visibility into CPU, memory, I/O, networking, and scheduling behavior Build high-performance observability and security tools that run safely inside the kernel Understand and outsmart the eBPF verifier instead of fighting it Deploy portable, future-proof programs across kernel versions and distributions Enforce runtime security policies without kernel modules or system restarts Operate eBPF reliably at scale with confidence, discipline, and control The material is informed by real kernel behavior, modern Linux distributions, and the same architectural patterns used in production-grade systems today. This is not a collection of blog posts-it is a structured, end-to-end handbook designed for engineers who demand correctness, depth, and practical results. If you are a kernel engineer, security engineer, or systems professional ready to move beyond surface-level tooling and into true kernel mastery, this book was written for you. Open the handbook. Step into the kernel. Build the future of Linux observability and security-starting now.

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