Linux – Page 5 – ITFROMZERO – Share tobe shared!

Hunting Down and Eliminating Zombie Processes: When Linux Servers Are Besieged by the Undead

By admin April 12, 2026

Zombie processes don't consume RAM but can exhaust PIDs, paralyzing your Linux server. Discover how to track down PPIDs and eliminate these 'undead' processes based on real-world experience.

Network

Linux Security: Implementing DoH and DoT to ‘Stay Hidden’ from ISPs

By admin April 12, 2026

Don't let ISPs know what you're accessing. A detailed guide on encrypting DNS with DoT and DoH on Linux for total privacy protection.

Fedora

Optimizing zRAM on Fedora: How to ‘Expand’ Your RAM for a Smooth, Lag-Free Experience

By admin April 11, 2026

Is Fedora lagging with too many tabs open? Discover how to optimize zRAM using zram-generator and zstd to expand your memory and boost system smoothness by over 30%.

Linux

Escape ‘Dependency Hell’ on Linux with Nix: The Package Manager That Saved Me at 2 AM

By admin April 10, 2026

Nix Package Manager is a lifesaver for isolating software, supporting instant rollbacks, and completely eliminating library conflict errors on Linux. This guide provides practical installation and usage tips for DevOps and Sysadmins.

Fedora

Managing Multiple Node.js, PHP, and MariaDB Versions: Fedora’s DNF Modularity “Secret Weapon”

By admin April 10, 2026

Forget nvm or unofficial repos. With DNF Modularity on Fedora, switching between Node.js 18, 20 or PHP 7.4, 8.2 is simpler and safer than ever.

Ubuntu

Installing NVIDIA Drivers on Ubuntu: Don’t Let Your High-End GPU Perform Like a Snail

By admin April 9, 2026

Installing NVIDIA drivers on Ubuntu is easy if you know how to use PPA and ubuntu-drivers. This article shares experiences on avoiding black screen errors and optimizing performance for AI/Gaming.

Linux

How to Use rclone to Sync and Backup Data from Linux to the Cloud (Google Drive, S3, OneDrive)

By admin April 8, 2026

A step-by-step guide to installing and configuring rclone on Linux to sync and backup data to Google Drive, Amazon S3, and OneDrive using practical commands. Includes how to automate backups with cron and tips for optimizing performance.

Fedora

Upgrading Fedora with DNF System Upgrade: Fast, Clean, and No Fear of ‘Bricking’ Your System

By admin April 7, 2026

A guide to safely upgrading Fedora using DNF System Upgrade. Keep your data intact, resolve dependency conflicts, and optimize your system after the update.

Docker

Does Docker ‘Bypass’ UFW? Essential Container Port Security for VPS

By admin April 6, 2026

Why does UFW fail to block Docker ports? Discover 3 practical solutions to resolve Docker firewall bypass issues and protect your VPS from hackers.

Linux

Managing Multiple Java Versions on Linux: Stop Doing It Manually, Use SDKMAN!

By admin April 6, 2026

Forget manual Java installation! SDKMAN! lets you install, manage, and switch between Java 8, 11, 17, and 21 on Linux with simple commands and no root access.