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Fedora Server: 6 Things to Do Right Away for a Clean and Secure Server

By admin June 16, 2026

Don't leave your Fedora Server at default settings. This 6-step guide covers SSH hardening, Firewalld, zRAM, and SELinux to keep your system running smoothly and securely.

Fedora

Podman Pod on Fedora: Group Containers with Kubernetes-native Architecture and Auto-generate systemd Services

By admin June 16, 2026

A guide to using Podman Pod on Fedora to group related containers into a single unit following Kubernetes-native architecture. Covers a real-world WordPress + MariaDB example and how to auto-generate systemd services with podman generate systemd so the Pod starts automatically after a reboot.

Development

Virtual Threads in Java 21: Handling Millions of Concurrent Requests with Low Resource Usage

By admin June 15, 2026

Compare Platform Threads, Reactive Programming, and Virtual Threads (Project Loom) in Java 21. A hands-on implementation guide with Spring Boot 3.2 covering pinning pitfalls and I/O-bound optimization to handle millions of concurrent requests with minimal resources.

Fedora

Greenboot on Fedora IoT and CoreOS: Automatic Health Checks and Rollback on Failed Updates

By admin June 15, 2026

Greenboot automatically runs health check scripts after every boot on Fedora IoT and CoreOS — if the system is unhealthy, it rolls back to the previous deployment after 3 consecutive failures. This guide covers installation, writing real-world check scripts, and how to test rollback without waiting for an actual failed update.

Artificial Intelligence tutorial - IT technology blog

Building an Intelligent Alert System with LLM: Automatically Classifying and Summarizing Prometheus Alerts to Reduce Alert Fatigue

By admin June 15, 2026

A hands-on guide to building a Prometheus alert classification and summarization system using LLM, helping SysAdmins escape alert fatigue. Compares rule-based, ML, and LLM approaches, with a complete Python webhook receiver.

Database

SQLite in Production: Effortless Real-time Backup with Litestream

By admin June 15, 2026

Stop worrying about data loss with SQLite. Learn how to use Litestream to automatically back up your database to Cloudflare R2/S3 in real time, giving your production application rock-solid data protection.

Git

Mastering git add -p: The Secret to Splitting Commits for a Squeaky Clean Git History

By admin June 15, 2026

Learn how to use git add -p to split changes into multiple separate commits. This technique keeps Git history clean, makes reviews easier, and improves professional logic management.

Monitoring

Monitoring Every Linux Command: Snoopy Logger and Grafana Loki Solution

By admin June 15, 2026

Forget .bash_history. Here is how to use Snoopy Logger and Grafana Loki to monitor every user action on Linux professionally and securely.

Development

Mastering WebRTC: Building a P2P Video Call App with Node.js from A-Z

By admin June 15, 2026

A step-by-step guide to building a P2P Video Call app from scratch with WebRTC and Node.js. Learn the secrets of Signaling, NAT traversal, and latency optimization.

Centos

10 Essential Post-Installation Steps for CentOS Stream 9: A Production “Survival” Checklist

By admin June 15, 2026

Just installed CentOS Stream 9? Check out this checklist of 10 essential tasks to optimize security and performance based on real-world production experience.

Deploying MySQL 8 on Fedora Server: Production Configuration Guide and SELinux Troubleshooting

Vagrant + KVM/Libvirt: How to Double Your VM Speed on Linux

Gitolite: Ultra-lightweight Git Server Management for 1GB RAM VPS

MongoDB + Python: From Basic CRUD to Advanced Aggregation with PyMongo

Guide to Using git-sizer: “Rescuing” Bloated and Sluggish Git Repositories

Process Python Data Like a Pro with Counter, defaultdict, and deque

VMware vSphere NIOC Configuration Guide: Eliminating Noisy Neighbors and Optimizing Bandwidth

Deploying Metabase with Docker: A Self-Service BI Solution to Replace Manual Data Extraction

Packaging Linux Applications: A Complete Guide to flatpak-builder on Fedora

MySQL 9.0 and VECTOR: Embedding Storage Solution for AI Apps Without a Secondary DB

Fedora Server: 6 Things to Do Right Away for a Clean and Secure Server

Podman Pod on Fedora: Group Containers with Kubernetes-native Architecture and Auto-generate systemd Services

Virtual Threads in Java 21: Handling Millions of Concurrent Requests with Low Resource Usage

Greenboot on Fedora IoT and CoreOS: Automatic Health Checks and Rollback on Failed Updates

Building an Intelligent Alert System with LLM: Automatically Classifying and Summarizing Prometheus Alerts to Reduce Alert Fatigue

SQLite in Production: Effortless Real-time Backup with Litestream

Mastering git add -p: The Secret to Splitting Commits for a Squeaky Clean Git History

Monitoring Every Linux Command: Snoopy Logger and Grafana Loki Solution

Mastering WebRTC: Building a P2P Video Call App with Node.js from A-Z

10 Essential Post-Installation Steps for CentOS Stream 9: A Production “Survival” Checklist