ITFROMZERO – Share tobe shared!

Artificial Intelligence tutorial - IT technology blog

Building GraphRAG with LangChain and Neo4j: When AI Needs to Deeply Understand Data Relationships

By admin April 17, 2026

A guide to building a GraphRAG system by combining Neo4j and LangChain. This solution helps AI understand complex data relationships, reducing hallucinations and increasing accuracy compared to traditional RAG.

Docker

Migrating Docker Containers to a New Server: A ‘Manual’ but Rock-Solid Method

By admin April 17, 2026

Can't use a Docker Registry for migration? Try the docker save, load, and rsync combo. A detailed guide on safely moving containers and data to a new server.

Docker

How to Force Docker Containers Through VPN with Gluetun: Ultimate Security for Torrents & Crawlers

By admin April 17, 2026

Learn how to configure Gluetun to run Docker containers through a VPN (Wireguard/OpenVPN). A secure, anonymous solution for specific services without impacting overall system speed.

Security

Implementing End-to-End TLS/SSL: Don’t Leave Data ‘Exposed’ in Your Internal Network

By admin April 17, 2026

Don't let traffic between your Web Server and Database run 'exposed'. A detailed guide on implementing End-to-End TLS/SSL for comprehensive data protection within your internal network.

Docker

Docker Secrets: Don’t Expose Passwords via a Clumsy ‘inspect’ Command

By admin April 17, 2026

Learn how to use Docker Secrets to protect passwords and API keys instead of exposing them via environment variables. A practical guide for Swarm and Compose v2.

Git

Gitea Installation: Build Your Own High-Performance, Low-Cost Git Server

By admin April 17, 2026

Gitea is the perfect high-performance, low-cost Git Server alternative to GitLab for low-spec VPS. This guide provides step-by-step instructions for Docker installation, Nginx configuration, and real-world tips for stable operation.

Security

Unmasking Rootkits on Linux: How to Use the Chkrootkit and Rkhunter Duo

By admin April 17, 2026

Don't let Rootkits silently take control of your server. Learn how to use Rkhunter and Chkrootkit to detect hidden malware and effectively secure your Linux server.

Network

DNS Configuration on Linux: Permanently Fix Settings Being Lost After Reboot

By admin April 15, 2026

Tired of losing DNS settings in /etc/resolv.conf after every reboot? This guide shows you how to properly configure DNS on Linux using Netplan, nmcli, and systemd-resolved for long-term stability.

Monitoring

Mastering Network Infrastructure with LibreNMS: From Bandwidth Monitoring to Automated Telegram Alerts

By admin April 15, 2026

A detailed guide on installing LibreNMS using Docker for network monitoring. Track bandwidth, CPU, RAM, and configure automated Telegram alerts for SysAdmins.

Docker

Implementing Zero-Downtime Blue-Green Deployment with Docker Compose & Nginx

By admin April 15, 2026

Don't let customers see 502 errors every time you update code. Discover the secret to simple Blue-Green Deployment with Docker Compose and Nginx for true Zero-Downtime.

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

Building GraphRAG with LangChain and Neo4j: When AI Needs to Deeply Understand Data Relationships

Migrating Docker Containers to a New Server: A ‘Manual’ but Rock-Solid Method

How to Force Docker Containers Through VPN with Gluetun: Ultimate Security for Torrents & Crawlers

Implementing End-to-End TLS/SSL: Don’t Leave Data ‘Exposed’ in Your Internal Network

Docker Secrets: Don’t Expose Passwords via a Clumsy ‘inspect’ Command

Gitea Installation: Build Your Own High-Performance, Low-Cost Git Server

Unmasking Rootkits on Linux: How to Use the Chkrootkit and Rkhunter Duo

DNS Configuration on Linux: Permanently Fix Settings Being Lost After Reboot

Mastering Network Infrastructure with LibreNMS: From Bandwidth Monitoring to Automated Telegram Alerts

Implementing Zero-Downtime Blue-Green Deployment with Docker Compose & Nginx