Tech Knowledge Hub

Guides

How-To Playbook

Interactive troubleshooting wizard. Diagnose crashes, slow servers, and network issues.

Tools

Script Vault

Production-ready code snippets. Copy/paste Bash, Python, and SQL commands instantly.

Automation

CI/CD Pipelines

Continuous Integration & Deployment. Jenkins, GitHub Actions, and the art of shipping code automatically.

Observability

Prometheus

Time-series database for monitoring. How to scrape metrics and set alerts.

Observability

Grafana

The visualization layer. Turning Prometheus metrics into beautiful, actionable dashboards.

SCM

GitHub & Git

Version control fundamentals. Branching, Pull Requests, and collaborative coding.

Automation

Jenkins

The classic automation server. Building pipelines with Groovy and plugins.

Performance

CDN

Content Delivery Network. Caching content at the edge to serve users globally in milliseconds.

Networking

NAT

Network Address Translation. How private subnets access the internet safely.

Networking

DNS

Domain Name System. Translating human names to IP addresses.

Networking

Load Balancing

Distributing traffic across healthy targets for high availability.

Networking

VPC

Virtual Private Cloud. Isolated network environments.

Networking

Network Layers

The OSI Model. Understanding how data moves from Layer 1 to 7.

Networking

Subnets

Dividing a network into smaller, secure segments (Public vs Private).

Networking

Security Groups

Virtual firewalls that control traffic at the instance level.

Networking

TCP vs UDP

Reliable delivery (TCP) vs speed (UDP). The two languages of the internet.

IaC

Infrastructure as Code

Managing infrastructure via declarative configuration files.

IaC

CloudFormation

AWS native tool for provisioning resources using YAML templates.

IaC

Terraform

Open-source tool for building, changing, and versioning infrastructure safely.

Compute

Serverless

Running code without provisioning or managing servers.

Compute

Containers

Standardized units of software packaging for consistent deployment.

Orchestration

Kubernetes

Automating deployment, scaling, and management of containerized apps.

Orchestration

OpenShift

Enterprise Kubernetes platform by Red Hat with added developer tools.

Tooling

Helm

The package manager for Kubernetes. Managing charts and releases.

Security

IAM

Identity and Access Management. Controlling who can do what.

Concepts

IaaS vs PaaS vs SaaS

Understanding the shared responsibility models in cloud computing.

Management

Resource Groups

Logical containers for grouping and managing related resources.

Framework

Well-Architected

The 6 pillars of building secure, high-performing, resilient infrastructure.

Data

SQL vs NoSQL

Choosing between relational and non-relational data models.

Storage

Storage Types

Block (EBS), File (EFS), and Object (S3) storage explained.

Performance

Caching Strategies

Storing transient data to reduce latency and database load.

Reliability

Disaster Recovery

Strategies for restoring systems after catastrophic failure.

AI

Large Language Models

How LLMs work (Tokens, Probability, Temperature) and how to use them.

API

GraphQL

The alternative to REST. Fetch exactly the data you need in a single request.

OS

Linux Commands

Essential CLI commands for managing servers and permissions.

OS

Mac Terminal

Power user commands and tools for macOS development.

API

REST API

Representational State Transfer. Standard architecture for web APIs.

Backend

API Server

The backend engine that processes requests and connects to databases.