Computer Networks

A book-shaped table of contents for computer networking, from first principles to production systems: Ethernet through IP, TCP/UDP/QUIC, DNS, the HTTP ecosystem, security, cloud/Kubernetes networking, performance engineering, observability/debugging, and distributed-systems networking — cross-linking existing kubernetes/sre/system-design/tech notes instead of duplicating them.

1 — Common Ports

A reference table of common ports across the 20–65535 range and the services conventionally bound to them.

11 — tcpdump Cheat Sheet

A cheat sheet of common tcpdump invocations and filter expressions for capturing traffic from the command line.

12 — curl Cheat Sheet

A cheat sheet of common curl flags and invocations for debugging HTTP requests from the command line.

13 — Linux Networking Commands

A consolidated command reference for Linux networking tools — ss, ip, netstat, route, traceroute, and ping.