Posted inDocker
HTTPS for Local Docker: Setting Up a Pro “Green Padlock” with mkcert and Nginx
How to configure HTTPS for Local Docker using mkcert and Nginx. Get a "green padlock" for virtual domains and test OAuth2 and Webhooks seamlessly.
Posted inDatabase
Deploying Patroni: The ‘Sleep Better’ Solution for PostgreSQL Administrators
Database outages in the middle of the night are no longer a concern. A detailed guide on deploying Patroni to automate PostgreSQL Failover and ensure 24/7 availability.
Posted inFedora
Preventing Brute-force Attacks on Fedora Server with Fail2ban: Don’t Leave SSH Doors Wide Open
Don't let your Fedora Server crash due to brute-force attacks. Check out this guide to configuring Fail2ban to automatically block malicious IPs and secure SSH.
Posted inLinux
Slow Linux Boot? Use systemd-analyze to Trace and Optimize Immediately
Don't let your Linux server boot slowly. Learn how to use systemd-analyze to track down bottlenecks and effectively optimize boot time in just a few steps.
Posted inMonitoring
Building a Centralized Logging System with Fluentd and OpenSearch: A Lightweight ELK Stack Alternative
The days of SSH and 'tail -f' for logs are over. Build a lightweight centralized logging system with Fluentd and OpenSearch, using 1/10 the RAM of ELK Stack.
Posted inSecurity
Ditch VPNs, Use Cloudflare Access to Secure Internal Apps: Fast, Secure, and Effortless
Forget VPNs! Learn how to use Cloudflare Access to protect internal dashboards and SSH with Google/GitHub SSO. 5-minute setup for enterprise-grade security.
Posted inGit
Git Patch & Git Apply: Instant Code Sharing Without Messing Up the Commit Log
Share code quickly and keep a clean commit history without pushing or pulling. A detailed guide on using Git Patch and Git Apply for a professional workflow.
Posted inDevelopment
Real-time Data Streaming with SSE in Node.js: Don’t Use WebSocket for Everything
Don't use WebSocket for everything! Discover Server-Sent Events (SSE) - a lightweight, easy-to-implement real-time streaming solution in Node.js for one-way data flow.
Posted inDevelopment
Practical Redis Caching: From DB Crashes to Handling Millions of Requests
Key takeaways from 6 months of operating Redis in production. Detailed guide on reducing Database load from 95% to 15% using Cache-Aside, Write-Through, and Jitter TTL techniques.
Posted inUbuntu
Joining Ubuntu Server to Windows AD with SSSD: Centralized Management for Hundreds of Users
Manually managing users on dozens of Ubuntu servers is a nightmare. This guide shows how to use SSSD to join Ubuntu Server to Windows AD for centralized management, automated home directories, and enhanced security.