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Virtualization tutorial - IT technology blog

Blocking Country IPs on Proxmox VE with IPSet: Optimizing Firewall and Performance

By admin August 21, 2026

Learn how to use IPSet on Proxmox VE Firewall to block bulk country IP ranges. Optimize system performance and effectively protect VMs from brute-force attacks.

Python

Windows Automation with Python: Mastering Registry, Services, and Event Logs

By admin August 21, 2026

Learn how to use Pywin32 to automate Windows administration. A detailed guide on managing Registry, Services, and Event Logs with Python for professional SysAdmins.

Artificial Intelligence tutorial - IT technology blog

Build Your Own Internal ‘GitHub Copilot’ with Tabby: Maximum Security, Ultra-Fast Speed

By admin August 21, 2026

Build a powerful self-hosted AI coding assistant like GitHub Copilot on your own server. A detailed guide on installing Tabby, optimizing GPU, and securing enterprise source code.

Docker

How to Dockerize SQL Server on Linux: Configuring Volumes, Users, and Practical Backup/Restore

By admin August 21, 2026

Forget manual SQL Server installations that take hours. This guide helps you Dockerize SQL Server on Linux accurately, ensuring data safety and optimizing your workflow.

Fedora

Optimizing SSD on Fedora with Btrfs Transparent Compression: “Expand” Your Storage for Free

By admin August 21, 2026

Save 30-60% of SSD space on Fedora by enabling Btrfs Transparent Compression. Detailed guide on configuring zstd and compressing existing data.

Security

Tlog Guide: The “Security Camera” for Recording Every Linux Terminal Session

By admin August 20, 2026

Forget .bash_history; tlog is the real security auditing tool for Linux. Record entire Terminal sessions and replay them like video for absolute system control.

VMware

Eliminate ‘Not Secure’ Warnings: How to Install Let’s Encrypt for VMware ESXi Using ACME

By admin August 20, 2026

Eliminate the annoying 'Not Secure' warning on VMware ESXi. Detailed guide on how to install free Let's Encrypt certificates via ACME.sh and DNS-01 challenge with ease.

Fedora

Fedora Security: Enable DNS-over-TLS (DoT) in 5 Minutes with systemd-resolved

By admin August 20, 2026

Encrypt DNS queries on Fedora in just 5 minutes. A detailed guide on configuring systemd-resolved to enable DNS-over-TLS (DoT) for better privacy and security.

Network

Upgrading Your Linux Network ‘Arsenal’: Experience the Trio of gping, bandwhich, and doggo

By admin August 20, 2026

Don't let dry ping text slow you down. Discover gping, bandwhich, and doggo—the trio of tools helping Linux sysadmins troubleshoot network issues 3x faster.

Groq Cloud + Python: ‘Hack’ LLM Speed to 500 Tokens/Second

By admin August 20, 2026

Learn to integrate Groq Cloud API with Python to boost AI app speeds to 500 tokens/s. Tips on cost optimization, streaming, and effective rate limit handling.

Repository Rescue: Mastering git fsck to Recover Code and Fix Data Errors

Optimize Windows Virtual Machines to Run ‘Silky Smooth’ with VMware OS Optimization Tool (OSOT)

Installing Pyrra: Managing SLOs and Alerts the Google SRE Way

Installing Woodpecker CI on Fedora Server: A Lightweight CI/CD Solution for Gitea

Configuring Docker daemon.json: Prevent Disk Full Errors and Production Server Crashes

Python lxml: The ‘Heavy Weapon’ for Processing XML/HTML in Legacy Systems

Mastering NetworkManager Dispatcher: Automate ‘Everything’ When Changing Networks on Linux

Configuring DNS Split-Horizon with BIND9: The IP “Splitting” Trick for LAN and Internet

Building Background Jobs for Next.js: Say Goodbye to Redis, Welcome Inngest

mysqlslap: How I “Torture” MySQL to Find Real-World Load Limits

Blocking Country IPs on Proxmox VE with IPSet: Optimizing Firewall and Performance

Windows Automation with Python: Mastering Registry, Services, and Event Logs

Build Your Own Internal ‘GitHub Copilot’ with Tabby: Maximum Security, Ultra-Fast Speed

How to Dockerize SQL Server on Linux: Configuring Volumes, Users, and Practical Backup/Restore

Optimizing SSD on Fedora with Btrfs Transparent Compression: “Expand” Your Storage for Free

Tlog Guide: The “Security Camera” for Recording Every Linux Terminal Session

Eliminate ‘Not Secure’ Warnings: How to Install Let’s Encrypt for VMware ESXi Using ACME

Fedora Security: Enable DNS-over-TLS (DoT) in 5 Minutes with systemd-resolved

Upgrading Your Linux Network ‘Arsenal’: Experience the Trio of gping, bandwhich, and doggo

Groq Cloud + Python: ‘Hack’ LLM Speed to 500 Tokens/Second