#Jinhendrix-Sore on Jinhendrix Documentation

DevOps Engineering

Sat, 20 Dec 2025 00:00:00 +0000

DevOps Engineering — Delivery Mentality

Focus: Speed + reliability of change
Strength: CI/CD, pipelines, collaboration between dev and ops
Approach:
- Automate builds, tests, deployments
- Reduce friction between teams
Question asked:

“How do we ship changes safely and faster?”

Site Reliability Engineering

Sat, 20 Dec 2025 00:00:00 +0000

Site Reliability Engineering — Reliability-by-Design Mentality

Focus: System behavior over time
Strength: Monitoring, automation, self-healing systems
Approach:
- Encode operational knowledge into code
- Measure, detect, and react automatically
- Minimize toil
Question asked:

“How do we make the system fix itself and page humans only for the unknown?”

1. Overview

Site Reliability Engineering (SRE) is a discipline that applies software engineering principles to infrastructure and operations. The goal is to create reliable, scalable, and automated systems by encoding operational knowledge into software.

Systems Administration

Sat, 20 Dec 2025 00:00:00 +0000

Systems Administration — Operational Mentality

Focus: Keeping systems running
Strength: Deep understanding of OS, networking, services, and failure modes
Approach:
- Manual intervention
- Scripts and cron jobs
- Human-driven detection and recovery
Question asked:

“How do I fix this when it breaks?”

1. Introduction / Purpose

This documentation provides comprehensive guidance for managing cloud infrastructure, Linux servers, and Windows Server environments.

It is intended for IT staff, and Systems Administrators alike.

2. Environment Overview

Systems and IT infrastructure generally operate under three primary environments: Development, Testing (Staging), and Production. Each environment serves a specific role in the system lifecycle and must be managed not only for functionality, but also for cost efficiency, security, and operational stability.