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Network Configuration and Troubleshooting in Linux
A systematic approach to debugging Linux network issues. The tools that earn their place and the order I use them in.
Linux Performance Tuning: Optimizing System Performance
A practical Linux performance tuning playbook for production servers. The kernel parameters, disk and network tweaks that earn their place, and the ones that turned out to be folklore.
Systemd Service Management: Creating and Managing Services
A practical guide to writing and managing systemd services for production. The unit file features that earn their place, plus the operational workflows.
Systemd and Modern Linux Service Management
Run services reliably with systemd: units, dependencies, and resource limits.
Edge Computing with AWS: CloudFront and Lambda@Edge
We use CloudFront + Lambda@Edge for specific patterns. The wins, the production gotchas, and where we hit Lambda@Edge's limits.
Cloud-Native Databases: Choosing the Right Database for Your Workload
Postgres, DynamoDB, Redis, Elasticsearch, Snowflake. We use all five for different workloads. The decision criteria, not the marketing comparison.
Disaster Recovery in the Cloud: Backup and Recovery Strategies
We've executed real disaster recoveries twice. The plan that survived contact with reality, and what was wrong about the plans we had before that.
Cloud Networking Fundamentals: VPCs, Subnets, and Routing
VPCs, subnets, route tables, gateways. The mental model that finally made cloud networking click after I stopped trying to map it 1:1 to physical networks.
AWS ECS vs EKS: Choosing the Right Container Platform
We run both ECS and EKS in production. Which we use for what, and the actual decision criteria — not the marketing comparison.
Container Image Scanning in CI and at Runtime
Shift-left security with image scanning. Trivy, policy gates, and runtime integration.
Cloud Security Best Practices: Securing Your AWS Infrastructure
A working AWS security baseline, derived from the actual incidents we've had and the audit findings we've cleared.
Serverless Architecture Patterns: Building Scalable Applications
We use serverless for specific patterns, not as a default. The patterns where it shines, the ones it doesn't, and the gotchas at production scale.