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smartmontools Guide: Diagnosing Linux Hard Drive Issues Before Your Data Vanishes

By admin April 20, 2026

Don't let your hard drive die in silence. A detailed guide on using smartmontools to diagnose HDD/SSD health on Linux and setting up automated Telegram alerts.

Security

Securing SSH with Hardware Security Keys (FIDO2/Yubikey): When Private Keys Are No Longer a ‘Fatal Weakness’

By admin April 20, 2026

Hardening server security with Hardware Security Keys (Yubikey/FIDO2). A detailed guide on setup, using Resident Keys, and configuring servers to prevent private key leaks.

Database

Mastering MongoDB Aggregation Framework: Building Real-World Data Pipelines

By admin April 20, 2026

Learn to build optimized MongoDB Aggregation Pipelines through real-world examples. Explore $match, $group, $lookup, and how to handle the 100MB RAM limit for Big Data.

Security

Auditd Configuration Guide: The “Black Box” for Tracking Every Change on Linux

By admin April 20, 2026

Hackers can wipe history but they can't hide from Auditd. A guide to configuring the Linux "black box" to trace file edits, command execution, and overall server security.

Docker

Dockerize Spring Boot: From 800MB ‘Giant’ to 150MB and the Ultimate Trick to Fix OOM

By admin April 20, 2026

Learn advanced Spring Boot Dockerization: Reduce image size from 800MB to 150MB and use smart JVM configuration to eliminate OOM errors in production.

Virtualization

Installing Windows 11 on KVM/Proxmox: The Best Way to Emulate TPM 2.0 and Secure Boot

By admin April 20, 2026

Installing Windows 11 on Proxmox/KVM often fails due to hardware incompatibility. Learn how to emulate TPM 2.0 and Secure Boot for a proper setup with full updates.

Python

Biome: Say Goodbye to the ESLint and Prettier ‘Maze’ to Speed Up Your Projects by 25x

Optimize Proxmox VE in 5 Minutes with Helper Scripts: Remove Subscription Nag and Configure Standard Repos

Automating Ubuntu Server Hardening to CIS Benchmarks Standards with USG

Why I Ditched Requests for Httpx: A Guide to Async HTTP Client and HTTP/2 for Python

Mount and Edit qcow2, vmdk Files Directly on Linux Using NBD: Fast, Simple, No VM Boot Required

Mastering Type Checking in Python with Mypy: Stop TypeErrors Before Deployment

Installing SoftEther VPN on Linux: A Powerful ‘All-in-One’ VPN Solution

Professional NVIDIA GPU Monitoring with Prometheus & DCGM Exporter: Don’t wait for a ‘burnout’ to fix it

Circuit Breaker in Node.js with Opossum: Don’t Let One Failing Service Bring Down the Whole System

Using Vision LLM to Convert Architecture Diagrams to Terraform: From Sketch to Source Code in 30 Seconds

smartmontools Guide: Diagnosing Linux Hard Drive Issues Before Your Data Vanishes

Securing SSH with Hardware Security Keys (FIDO2/Yubikey): When Private Keys Are No Longer a ‘Fatal Weakness’

Mastering MongoDB Aggregation Framework: Building Real-World Data Pipelines

Auditd Configuration Guide: The “Black Box” for Tracking Every Change on Linux

Dockerize Spring Boot: From 800MB ‘Giant’ to 150MB and the Ultimate Trick to Fix OOM

Installing Windows 11 on KVM/Proxmox: The Best Way to Emulate TPM 2.0 and Secure Boot

Automating Image Processing with Pillow: Tips for Compressing and Watermarking Thousands of Files

Optimizing Workflows with Custom Slash Commands in Claude Code

Evaluating RAG with RAGAS: From ‘Gut Feeling’ to Faithfulness, Answer Relevance, and Context Precision Metrics

What is an MCP Server? How to Connect Claude to a Database in Seconds