Replace static database credentials with HashiCorp Vault dynamic secrets. Automatic rotation, bounded blast radius, and audit trails. Full production guide.
Compare two-phase commit and sagas for distributed systems. Understand when to use each pattern with practical examples and implementation guidance.
Build a global CDN with Nginx for $10/month. Route traffic to edge nodes by location, cache static content faster, and save vs. Cloudflare Pro.
Master PostgreSQL autovacuum tuning to eliminate table bloat, boost query performance, and prevent transaction ID wraparound in high-write workloads.
