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How to Install VMware ESXi 8 for Free on a Physical Server and Create Your First VM

By admin April 2, 2026

A step-by-step guide to installing VMware ESXi 8 for free on a physical server: hardware prep, creating a bootable USB, BIOS configuration, and creating your first VM through the web UI — with practical tips from real-world experience.

Fedora

Fedora Server: Professional Python Deployment with Gunicorn and Nginx

By admin April 1, 2026

Don't let 502 Bad Gateway errors stop you. A guide to deploying Python on Fedora with Gunicorn, Nginx, and precise SELinux configuration based on real-world experience.

Centos

Configuring GlusterFS on CentOS Stream 9: Building a Fault-Tolerant Data Storage ‘Fortress’

By admin April 1, 2026

A detailed guide on installing GlusterFS on CentOS Stream 9. This article shares practical experience in configuring Replicated Volumes, optimizing Firewall settings, and handling split-brain issues to ensure data safety.

Network

Configuring VPN Clients on Linux: Battle-Tested Experience with WireGuard, OpenVPN, and IPsec

By admin April 1, 2026

A hands-on guide to configuring WireGuard, OpenVPN, and IPsec on Linux. Learn how to troubleshoot routing, DNS, and MTU issues from a system administrator's perspective.

Git

Git Sparse Checkout: The Ultimate Trick for Handling Gigabyte-Scale Monorepos

By admin April 1, 2026

Stop waiting for GB-sized Monorepo clones. Learn to use Git Sparse Checkout to download only the folders you need, saving space and speeding up your workflow.

Python

Building ‘Blazing Fast’ APIs with FastAPI and Pydantic: From Zero to Production

By admin April 1, 2026

Building high-performance Python APIs is easy with FastAPI and Pydantic. This detailed guide covers setup, data validation, and expert async/await optimization.

Security

Nginx Limit Request: A Shield Against ‘Guerrilla’ DDoS and Effective Traffic Throttling

By admin April 1, 2026

Nginx Limit Request is an effective weapon against Layer 7 DDoS and spam bots. This guide covers detailed configurations for burst and nodelay, plus real-world traffic management tips.

Linux

Linux SWAP Configuration Guide: A “Spare Tire” for Low-RAM Servers

By admin April 1, 2026

Don't let your server crash due to RAM exhaustion. A detailed guide on creating a Linux Swap File, optimizing swappiness, and practical tips for maintaining system stability under heavy load.

Centos

Installing LEMP Stack on Rocky Linux 9: Lessons from a “Stormy” Server Migration

By admin March 31, 2026

Learn how to install the LEMP Stack on Rocky Linux 9 based on real-world migration experience. This guide covers optimizing Nginx, MariaDB, and PHP 8.1 for peak performance.

Git

Managing Multiple GitHub and GitLab Accounts on the Same Machine with SSH Config

By admin March 31, 2026

Managing multiple GitHub and GitLab accounts on a single machine has never been easier with SSH config. This solution completely separates work and personal projects.

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

How to Install VMware ESXi 8 for Free on a Physical Server and Create Your First VM

Fedora Server: Professional Python Deployment with Gunicorn and Nginx

Configuring GlusterFS on CentOS Stream 9: Building a Fault-Tolerant Data Storage ‘Fortress’

Configuring VPN Clients on Linux: Battle-Tested Experience with WireGuard, OpenVPN, and IPsec

Git Sparse Checkout: The Ultimate Trick for Handling Gigabyte-Scale Monorepos

Building ‘Blazing Fast’ APIs with FastAPI and Pydantic: From Zero to Production

Nginx Limit Request: A Shield Against ‘Guerrilla’ DDoS and Effective Traffic Throttling

Linux SWAP Configuration Guide: A “Spare Tire” for Low-RAM Servers

Installing LEMP Stack on Rocky Linux 9: Lessons from a “Stormy” Server Migration

Managing Multiple GitHub and GitLab Accounts on the Same Machine with SSH Config