A deep-dive reference on the core network protocols — how they work, what ports they use, and their security implications. Built for quick lookup during CTFs, pentests, and cloud security work.

A full walkthrough of AWS VPC — subnets, route tables, internet gateways, NAT, security groups, NACLs, flow logs, endpoints, and peering

A practical breakdown of how AWS physically organises its global infrastructure — regions, availability zones, edge locations, and why the design matters for resilience and latency

A full walkthrough of AWS Elastic Load Balancing — ALB vs NLB, listeners, target groups, health checks, sticky sessions, and SSL termination

A full walkthrough of AWS CloudFront — distributions, origins, cache behaviours, cache policies, signed URLs, WAF integration, and real-world patterns

A full walkthrough of AWS Route 53 — hosted zones, record types, routing policies, health checks, and resolver for private DNS

A practical guide to AWS CLI setup, IAM identities, credential types, policy structure, and how attackers abuse misconfigured IAM — written from a cloud security perspective

Full YAML syntax guide and GitHub Actions walkthrough — triggers, jobs, steps, secrets, matrix builds, reusable workflows, and real-world CI/CD pipelines

Full Terraform walkthrough — providers, resources, state, variables, modules, workspaces, and real-world AWS patterns from the ground up

Full Kubernetes walkthrough — architecture, pods, deployments, services, ingress, config, storage, and kubectl from the ground up