Linux Operations

Enterprise Linux operations reference. From desktop workstations to headless research servers. Built for when you’re SSH’d into a box with scientists watching.

Supported Distros

Distro Family Versions Use Case

Arch Linux

Rolling release

Workstation, daily driver

RHEL/Rocky/Alma

8.x, 9.x

Enterprise servers, compliance

Fedora

39, 40, 41

Workstation, cutting edge

Debian/Ubuntu

12 Bookworm, 24.04 LTS

Servers, research

Content Structure

Command Arsenal

Deep-dive references migrated from Principia. Each topic exhaustively covered with examples.

Troubleshooting

Decision-tree format. Start with symptom → follow diagnostic steps → reach resolution.

Runbooks

Step-by-step procedures with pre-flight checks, execution, verification, and rollback.

Quick Reference

Cheatsheets and comparison tables for rapid lookup.

Templates

Add new content quickly with standardized formats.

Philosophy

Terminal first. GUI never. Documentation always.

  • Distro-agnostic where possible, with tabs for distro-specific commands

  • Copy-paste ready - every command tested and working

  • Decision trees for troubleshooting - don’t think, follow the path

  • Real scenarios from production environments

Migration Status

Content being migrated from Principia Command Arsenal:

Topic Source Status

Linux CMD Mastery

2025-BASH-Linux-CMD-Mastery-001/002

Pending

Systems Administration

2025-LNX-005-Systems-Administration-Mastery

Pending

Advanced Shell Patterns

2025-LNX-006-Advanced-Defensive-Shell-Patterns

Pending

SELinux/AppArmor

2025-LNX-012-SELinux-AppArmor-MAC

Pending

KVM/QEMU

2025-LNX-010-KVM-QEMU-Virtual-Machines

Pending

Netcat Operations

2026-LNX-027-Netcat-Security-Operations

Pending

SSL/TLS Certificates

2026-LNX-029-SSL-TLS-Certificate-Operations

Pending

  • domus-infra-ops - Infrastructure operations (PKI, Vault, backup)

  • domus-secrets-ops - Secrets management with dsec

  • domus-ise-linux - 802.1X EAP-TLS for Linux

  • domus-netapi-docs - Network automation CLI