Kernel

How Linux namespaces isolate processes, filesystems, networks, and more — the foundation of containers like Docker and Kubernetes.

An in-depth walkthrough of eBPF — what it is, how the verifier works, JIT compilation, maps, and the program types available in the kernel. Covers the safety model that makes eBPF programs safe to run …

What really happens during a TCP three-way handshake — kernel state machines, SYN queues, backlog, and SYN flood defenses.