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DevSecOps

Official NGINX hexagonal N mark on a loom regulating request threadsDevOps

Rate Limit APIs with NGINX Without Blocking Bursts

Protect APIs before traffic reaches your application by configuring NGINX rate limits, safe bursts, trusted client IPs, dry-run rollout, and useful logs.

9 min read
Official Git logo integrated into converging commit rails ending in a verified sealSoftware Development

Sign and Verify Git Commits with Existing SSH Keys

Use SSH keys to sign Git commits, verify trusted identities locally, separate work and personal keys, and enforce signatures safely in CI.

9 min read
Terraced rows of isolated glass data blocks connected to a central database core in a sunrise landscapeBackend

PostgreSQL Row-Level Security for Multi-Tenant Apps

Build a database-enforced tenant boundary with PostgreSQL RLS, least-privilege roles, transaction-local context, and isolation tests.

8 min read
Brushed metal security key entering a white server vault surrounded by green firewall ringsDevOps

Harden SSH on Ubuntu with Keys, UFW, and Fail2Ban

Lock down Ubuntu SSH with Ed25519 keys, UFW, and Fail2Ban while avoiding remote lockouts, with verification and recovery steps.

7 min read
Technical blueprint of reusable Terraform modules assembling AWS cloud infrastructureCloud & Infrastructure

Build Reusable Terraform Modules for AWS

Design reusable Terraform modules for AWS with clear boundaries, validated inputs, stable outputs, version pinning, automated tests, and safe refactoring.

6 min read
Editorial collage showing Laravel Horizon and Redis queue workers connected to an Ubuntu production serverDevOps

Laravel Horizon on Ubuntu: Redis Queue Production Guide

Run Laravel Horizon reliably on Ubuntu with Redis, Supervisor, queue balancing, safe retries, metrics, monitoring, and graceful deployments.

7 min read
Bright operations workspace with a Kubernetes device and three status beacons for startup readiness and livenessCloud & Infrastructure

Kubernetes Probes: Startup, Readiness, Liveness

Configure Kubernetes startup, readiness, and liveness probes with honest health endpoints, measured timing, graceful shutdown, and production diagnostics.

6 min read
Private application server behind a firewall connected through an encrypted outbound tunnel to distributed edge nodesCloud & Infrastructure

Cloudflare Tunnel on Ubuntu: Publish Apps Safely

Publish a self-hosted Ubuntu application through Cloudflare Tunnel with no inbound ports, explicit ingress rules, service management, access control, and monitoring.

7 min read
Protected application process supervised by restart, monitoring, logging, and restricted-permission controlsDevOps

Run Node.js with systemd on Ubuntu: Production Guide

Run Node.js as a reliable Ubuntu system service with a dedicated user, automatic restarts, journal logs, graceful shutdown, and practical hardening.

6 min read
Multi-stage software build producing a small locked production containerDevOps

Secure Node.js Docker Images with Multi-Stage Builds

Build smaller and safer Node.js Docker images with multi-stage builds, production-only dependencies, non-root execution, secret mounts, health checks, and runtime restrictions.

7 min read
PostgreSQL database backups flowing into secure storage and a restored databaseBackend

PostgreSQL Backup and Restore: A Production-Safe Guide

Build a reliable PostgreSQL backup and restore workflow with pg_dump, pg_restore, protected credentials, retention, verification, and recovery drills.

7 min read
Automated Node.js continuous integration pipeline with test, cache, and database stagesSoftware Development

Build a Node.js CI Pipeline with GitHub Actions and PostgreSQL

Create a secure, fast Node.js CI pipeline with GitHub Actions, npm caching, lint and build checks, automated tests, and an isolated PostgreSQL service container.

8 min read