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Active Directory Management with Python: Automate Instead of Endless Clicking

By IT From Zero September 10, 2026

Learn how to use the ldap3 library in Python to automate Active Directory administration. From connecting and querying to automated user creation with real-world DevOps insights.

Artificial Intelligence tutorial - IT technology blog

Build Your Own Private AI Search Engine with Perplexica and Docker

By IT From Zero September 10, 2026

A guide to building your own personal AI search engine using Perplexica and Docker. A perfect Perplexity AI alternative supporting Ollama, Groq, and absolute privacy.

Development

Turn Neovim into a Professional IDE with LazyVim: LSP Configuration, Mason, and Workflow Optimization

By IT From Zero September 10, 2026

A detailed guide on turning Neovim into a professional IDE using LazyVim. This article shares practical experience on configuring LSP, Mason, and keybindings to optimize your workflow.

Virtualization

Remote Proxmox Access: Forget Port Forwarding, Cloudflare Tunnel is the Game Changer

By IT From Zero September 10, 2026

Forget risky port forwarding. Here is how to use Cloudflare Tunnel for secure, professional, and completely free remote access to Proxmox VE.

Docker

Building Selenium Grid with Docker Compose: A High-Speed Parallel Testing Solution

By IT From Zero September 9, 2026

Accelerate your automated testing by building a Selenium Grid cluster with Docker Compose. A detailed guide on running parallel browsers and optimizing system resources.

Monitoring

Installing Nagios Core on Ubuntu: Monitoring Rock-Solid Infrastructure with NRPE and Custom Plugins

By IT From Zero September 9, 2026

Don't overlook Nagios Core if you need absolute stability. A detailed guide on installing Nagios on Ubuntu, configuring NRPE, and writing high-quality custom monitoring plugins.

Centos

Mastering Firewalld IP Sets on CentOS Stream 9: Block Thousands of IPs Instantly

By IT From Zero September 9, 2026

Block thousands of attacking IPs with a single command. A detailed guide on using Firewalld IP Sets on CentOS Stream 9 to optimize security and performance.

Network

Deploying EVPN-VXLAN with FRRouting: A Robust Overlay Solution for Linux Servers

By IT From Zero September 9, 2026

Learn how to deploy EVPN-VXLAN on Linux with FRRouting. This article covers detailed configuration, the advantages of BGP EVPN over traditional VXLAN, and real-world MTU troubleshooting.

Security

DNS Firewall with BIND9 RPZ: Nipping Malware and Phishing in the Bud

By IT From Zero September 9, 2026

A DNS Firewall using BIND9 RPZ blocks up to 92% of malicious connections from malware and phishing. Here is a detailed guide on configuring Sinkholes and managing blacklists.

Development

Mastering TanStack Router: The Ultimate Type-safe Routing for React Developers

By IT From Zero September 9, 2026

Explore the power of TanStack Router—the most type-safe routing library for React today. Learn how to manage URLs intelligently, validate data with Zod, and optimize data loading performance.

Monitoring Argo CD Application Sync and Health Status with Prometheus and Grafana

Installing and Using Portkey AI Gateway: Rate Limiting, Load Balancing, and Multi-LLM Observability

How to Install and Configure nftables on Linux: A Complete iptables Replacement

Optimizing KVM Networking with virtio-net Multiqueue and vhost-net: Hitting Full 10GbE Without CPU Bottlenecks

How to Deploy Umami Analytics with Docker Compose and PostgreSQL: Self-Host a Lightweight GA4 Alternative

How to Back Up SQLite to S3 with Litestream: Real-Time Production Backups

Guide to Using Tart on macOS Apple Silicon: Create and Manage CLI Virtual Machines for CI/CD

Installing and Configuring Auditd on Ubuntu Server: Tracing User Actions Down to the Kernel Level

How to Use git-credential-oauth: Log in to GitHub and GitLab in Terminal via Browser

How to Enable Virtualization-Based Security (VBS) and Credential Guard on VMware vSphere

Active Directory Management with Python: Automate Instead of Endless Clicking

Build Your Own Private AI Search Engine with Perplexica and Docker

Turn Neovim into a Professional IDE with LazyVim: LSP Configuration, Mason, and Workflow Optimization

Remote Proxmox Access: Forget Port Forwarding, Cloudflare Tunnel is the Game Changer

Building Selenium Grid with Docker Compose: A High-Speed Parallel Testing Solution

Installing Nagios Core on Ubuntu: Monitoring Rock-Solid Infrastructure with NRPE and Custom Plugins

Mastering Firewalld IP Sets on CentOS Stream 9: Block Thousands of IPs Instantly

Deploying EVPN-VXLAN with FRRouting: A Robust Overlay Solution for Linux Servers

DNS Firewall with BIND9 RPZ: Nipping Malware and Phishing in the Bud

Mastering TanStack Router: The Ultimate Type-safe Routing for React Developers