Master Identity and Access Management in Microsoft Entra ID. Learn to design, validate, and recover IAM workflows safely using first-principles and least privilege.
Learn Identity and Access Management first principles with Microsoft Entra ID: a worked example, safe bounded exercise, validation and rollback guidance.
Build, run and validate a bounded systemd oneshot service using status and journal evidence, then roll it back safely with a clear path to production.
Learn how systemd timer and service units cooperate, then build, trigger and validate a bounded automation task with verifiable evidence and a safe rollback path.
Learn how systemd timers, services and journal evidence combine to safely design, trigger and validate a bounded automation task, with rollback steps.
Learn how to define, start, validate and safely roll back a bounded systemd service using evidence-led checks before trusting it in production.
A first-principles guide to building, validating and safely rolling back a bounded systemd automation task using exit-status and journal evidence.
Learn to build, validate and safely recover a bounded systemd automation task using explicit evidence, safe exercises and clear rollback steps.
Learn to design, validate and safely roll back a bounded systemd timer and service workflow for automation and service operations tasks, with evidence-led checks.
Build and validate a bounded systemd timer and service workflow in a safe lab, with explicit evidence, rollback steps and production-ready safety checks.
Learn to design, validate and safely roll back a bounded AWS Cloud Infrastructure and Operations task using read-only checks and a reversible test exercise.
A hands-on runbook for converting EC2-only Auto Scaling health checks to ELB-aware checks, with tuning, failover proof, evidence and rollback steps.
Learn the exact CLI steps to force an RDS Multi-AZ failover, measure real recovery time, capture evidence, and clean up safely afterwards.
A hands-on runbook for locking production RDS backups with AWS Backup Vault Lock and cross-region copy, covering rollback limits and audit evidence.
A hands-on runbook for junior engineers configuring AWS Systems Manager Patch Manager with staged rollout, compliance evidence and snapshot rollback.
A step-by-step runbook showing junior cloud engineers how to configure AWS Budgets, Cost Anomaly Detection, and SNS alerts before production spend spikes.
A hands-on runbook for junior engineers to build automated EC2 start/stop schedules with EventBridge and Lambda, cutting non-production AWS costs.
Learn how to build a governed AWS landing zone using Entra ID federation, IAM Identity Center, SCIM provisioning, and Service Control Policies for enterprise-grade security.