Running everything in a single AWS account quickly becomes painful as teams, environments, and compliance needs grow. This post explains a practical multi-account landing zone using Organizations, OU structure, IAM Identity Center, shared networking, centralized logging, and security guardrails.
A practical guide to AWS IAM from an operational perspective. Covers IAM Users, Groups, Roles, Policies, least privilege, account separation, and CI/CD permission design.
A practical comparison of AWS Security Groups and Network ACLs. Covers stateful vs stateless behavior, instance-level vs subnet-level protection, typical production patterns, and common misunderstandings.
A practical guide to managing Kubernetes Secrets safely. Covers the difference from ConfigMaps, injection methods, Git storage strategies, External Secrets, Vault integration, rotation, and RBAC considerations.