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How to Install Netdata on Ubuntu: Real-Time System Monitoring with 1-Second Granularity

By IT From Zero October 12, 2026

A step-by-step guide to installing Netdata on Ubuntu Server: monitor CPU, RAM, and disk I/O in real time with 1s latency, secure it via Nginx, and optimize for 1GB VPS.

Linux

Turn Your Linux Server into a Time Machine Station: Seamless Wireless macOS Backups

By IT From Zero August 20, 2026

A detailed guide on turning a Linux server into a Time Machine backup station for macOS. A secure, automated, and cost-effective wireless backup solution.

Network

Configuring NAT64 and DNS64 on Linux with Tayga and BIND9: Connecting IPv6-Only Servers to Legacy IPv4 Services

By IT From Zero July 8, 2026

A hands-on guide to configuring NAT64 with Tayga and DNS64 with BIND9 on Linux, enabling IPv6-only servers to connect to legacy IPv4-only services without extra IPv4 addresses or application code changes. Based on six months of real production experience.

Ubuntu

Installing and Using Nala on Ubuntu: A Package Manager with a Clean Interface, Parallel Downloads, and Better Performance Than APT

By IT From Zero June 2, 2026

Nala is a modern APT front-end for Ubuntu that provides a clean interface, parallel package downloads, and install history rollback. This guide covers installation, fetching the fastest mirrors, and integrating Nala into your daily server administration workflow.

Network

Wake-on-LAN (WoL) on Linux: Don’t Let Turning On Your Server Become a Nightmare

By IT From Zero May 1, 2026

Stop letting remote server management haunt you. Here is a detailed guide on configuring Wake-on-LAN on Linux to boot your server remotely with a single command.

VMware

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

By IT From Zero 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.

Network

How to Install and Configure OpenVPN Server on Linux: Easy Secure Remote Network Access

By IT From Zero March 29, 2026

This article provides a detailed guide on how to install and configure an OpenVPN Server on Linux to create a secure VPN connection. You'll learn about different VPN solutions, why OpenVPN is chosen, and how to deploy it step-by-step easily using an automated script.

Linux

Effective Linux Debugging: A Detailed Guide with journalctl and dmesg

By IT From Zero March 24, 2026

Debugging on Linux is an essential skill. journalctl and dmesg are two powerful tools that help you identify the root cause of any issue, from services to hardware. This article guides you on how to use them effectively.

Network

Setting Up a PXE Boot Server on Linux: Automated OS Installation Over the Network for Multiple Servers

By IT From Zero March 23, 2026

A hands-on guide to deploying a PXE Boot Server on Linux with dnsmasq, TFTP, and NFS for automated OS installation across multiple servers over the network. Covers detailed configuration, boot menus, BIOS/UEFI differences, and a quick health check script for the full stack.

Linux

Guide to managing Logical Volumes (LVM) on Linux: Create, extend, and shrink partitions flexibly

By IT From Zero March 22, 2026

LVM (Logical Volume Manager) is a flexible disk space management solution on Linux, allowing easy creation, extension, and shrinking of partitions. This article provides detailed instructions for LVM operations from basic to advanced, along with practical examples and personal experiences.