This article explains what a MAC address is, its structure and role in networking, and why many embedded devices must assign their own MAC addresses due to cost, industry practices, and the need for on‑demand configuration rather than universal uniqueness.
This article provides a comprehensive overview of Ethernet MAC and PHY components, explains the Media Independent Interface (MII) and its derivatives such as GMII, RMII, and RGMII, and details the signal definitions, management interfaces, and practical design considerations for network hardware.
This guide presents the most frequently used nmcli commands for displaying, modifying, adding, activating, deactivating, and configuring network interfaces on Linux, including examples for renaming interfaces, setting static IPs, and switching to DHCP mode.
This guide explains how to use tmux on Linux—including creating, detaching, attaching, renaming, and killing sessions, managing windows and panes with handy keyboard shortcuts—plus a quick tip for identifying physical network interfaces using ethtool.
This guide explains how the qrcp command‑line tool creates a temporary web server, encodes its address in a QR code, and enables fast, cross‑device file transfers, covering installation via Go or binary, usage commands, network‑interface selection, and practical examples.
This article explains how the Linux kernel’s layered architecture, modular design, and well‑defined subsystems such as the process scheduler, memory manager, virtual file system, and network interface enable massive volunteer collaboration, extensibility, and continuous evolution of the operating system.
