Linux – Page 22 – ITFROMZERO

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.

Linux

Is Linux Fragmented? How to Check and Optimize EXT4 and XFS Drives to Boost I/O Speed

By admin March 31, 2026

The idea that Linux doesn't fragment is a myth. Learn how to use e4defrag and xfs_fsr to check and optimize drives, effectively boosting server I/O performance.

Virtualization

Configuring SR-IOV on Linux: How to Unlock Maximum Bandwidth for KVM Virtual Machines

By admin March 31, 2026

Is your KVM virtual machine experiencing slow network speeds? Discover how to configure SR-IOV to maximize throughput, reduce host CPU load, and eliminate latency.

Network

Turn Linux into a Wireless Access Point: Build Your Own “Pro” Wi-Fi Router with hostapd and dnsmasq

By admin March 31, 2026

A detailed guide to turning a Linux machine into a Wireless Access Point using hostapd and dnsmasq, with real-world troubleshooting experience for packet loss and network performance optimization.

Linux

Mastering awk and sed: Log and Config File Processing Secrets for Sysadmins

By admin March 30, 2026

Stop editing GB-sized log files by hand. Learn how to use awk and sed to automate your Linux workflow with real-world expert examples.

Database

Migrating Data from MySQL to PostgreSQL: Comparing Methods and Practical Guide

By admin March 29, 2026

A guide comparing 3 methods for migrating data from MySQL to PostgreSQL: pgloader, manual mysqldump conversion, and Python ETL. Analyzes the pros and cons of each approach with practical command examples and a post-migration verification checklist.

Network

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

By admin 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.

Ubuntu

Optimizing Ubuntu Desktop Performance: Transform Your PC into a Smooth Workstation

By admin March 29, 2026

Speed up your Ubuntu Desktop with this detailed guide from itfromzero.com. The article shares system tuning steps, interface optimization, and useful tools to make your machine run smoother, enhancing productivity.

Network

Diagnosing and Troubleshooting Network Connectivity Issues on Linux: A Guide to `ip`, `route`, `dig`, `netcat`, and More

By admin March 28, 2026

Network connectivity issues on Linux servers can arise unexpectedly, causing significant disruption. This article guides you through using powerful tools like `ip`, `route`, `dig`, and `netcat` to systematically diagnose and resolve problems, just as you would handle a real-world production incident.

Security

How to Install and Use OpenVAS (Greenbone) for Linux Server Vulnerability Scanning

By admin March 28, 2026

Protecting Linux servers from attacks requires regular vulnerability scanning. This article will guide you step-by-step through installing and using OpenVAS (Greenbone Vulnerability Management), a powerful tool, to proactively detect and remediate weaknesses in your system.