Blog

Thoughts & Stories

Sharing my experiences, learnings, and adventures in tech and beyond.

Browse by Topic

DevOps & Cloud Infrastructure (147)AI & LLMs (130)Backend & APIs (100)Web Development (81)ERP Systems (74)Software Development (58)Security (30)Career Reflections (28)Cloud (21)Product & SaaS (12)AI / Machine Learning (5)University (1)Hackathons (1)

DevOps

June 202511 min read

Nginx Performance Tuning: From Default Config to 50,000 Req/s

A practical Nginx performance tuning guide covering worker processes, connections, kernel parameters, gzip, and caching — with real configuration you can apply today.

DevOps

June 20259 min read

Fail2ban on VPS: Automate Brute Force Protection in 15 Minutes

Set up fail2ban on Ubuntu VPS to automatically block SSH brute-force attacks, protect Nginx, and configure custom jails — with real configuration examples.

DevOps

June 202510 min read

Systemd Services for Background Jobs: The Right Way to Run Node.js in Production

How to write production-ready systemd service files for Node.js, NestJS, and background workers — with restart policies, resource limits, and environment variable management.

DevOps

June 202511 min read

WireGuard VPN for Private Cloud Networking: Simple, Fast, Secure

How to set up WireGuard VPN to create a private overlay network between cloud servers and development machines — faster than OpenVPN with a fraction of the configuration.

DevOps

June 20259 min read

Log Rotation in Linux: Managing Production Logs Before They Fill Your Disk

How to configure logrotate for production Linux servers — preventing disk full outages, managing app logs, and setting up monitoring for log rotation health.

DevOps

June 202510 min read

Docker Secrets in Production: Stop Putting API Keys in Environment Variables

Why plain environment variables are not safe for Docker secrets, and how to use Docker secrets, external secret managers, and encrypted files to protect credentials in production.

Showing 631–636 of 688 posts

Explore More

Projects

See the projects I've built

Experience

My professional career

Certifications

Professional certifications