Linux Engineer Roadmap
From the filesystem hierarchy and permissions through users, networking, process management, storage, and logging, the core path for a working Linux engineer, linked into Cloud Tech by Victor topic references.
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Interactive diagram. Press Tab to move through the 6 steps in order; each step links to its full reference page.
The Filesystem Hierarchy Standard and how permissions are actually decided are where everything else on a Linux system builds from.
Users, groups, and sudo govern who can do what once the filesystem itself is understood.
Interfaces, sockets, and nftables determine what's reachable from where before any service is exposed.
With identity and networking in place, signals and systemd are how services actually start, stop, and stay running.
LVM and mounts are what let storage grow with a running service instead of hitting a fixed partition boundary.
Once services, networking, and storage are running, journald is what lets you understand and debug what's actually happening on the system.