Linux – Page 21 – ITFROMZERO

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.

Fedora

Setting Up a Dev Environment on Fedora: From Zero to Pro with Zsh and Tmux

By admin April 5, 2026

Transform Fedora Workstation into a professional development environment. A detailed guide on configuring Zsh, Tmux, Nerd Fonts, and efficient monitoring tools.

Docker

Docker Rootless: Don’t Let One App Vulnerability Take Down Your Entire Server

By admin April 5, 2026

Secure your Docker server with Rootless Mode: run containers without root privileges to eliminate the risk of full system takeover through application vulnerabilities.

Ubuntu

Ubuntu Remote Desktop: Ultra-Smooth Windows Connection Without Extra Apps

By admin April 4, 2026

Quickly enable Remote Desktop (RDP) on Ubuntu 22.04/24.04. A detailed guide on smooth Windows connections, bandwidth optimization, and tips for headless setups.

Centos

Supercharge Website Speed with Varnish Cache and Nginx on CentOS Stream 9

By admin April 4, 2026

Learn how to deploy Varnish Cache with Nginx on CentOS Stream 9 to reduce server load and boost website speed. Detailed guide based on real-world system admin experience.

Linux

Mastering lshw, dmidecode, and hwinfo: A Deep Dive into Linux Hardware

By admin April 4, 2026

A guide to using lshw, dmidecode, and hwinfo to check detailed CPU, RAM, storage, and Serial Numbers on Linux. Essential tips for SysAdmins to master server hardware.

Network

Mastering Traffic Control (tc): Bandwidth Limiting and Traffic Prioritization on Linux

By admin April 3, 2026

Don't let a backup script crash your Web Service. Learn how to use tc (Traffic Control) to limit bandwidth, prioritize SSH/Web traffic, and optimize Linux network performance.

Monitoring

Healthchecks.io: The Pro Secret to Monitoring Silent Cron Job Failures

By admin April 3, 2026

A backup script suddenly stopping is a disaster for any SysAdmin. Discover how to use Healthchecks.io to monitor Cron Jobs effectively using the 'Dead Man's Snitch' mechanism.

Centos

Configuring GlusterFS on CentOS Stream 9: Building a Fault-Tolerant Data Storage ‘Fortress’

By admin April 1, 2026

A detailed guide on installing GlusterFS on CentOS Stream 9. This article shares practical experience in configuring Replicated Volumes, optimizing Firewall settings, and handling split-brain issues to ensure data safety.

Network

Configuring VPN Clients on Linux: Battle-Tested Experience with WireGuard, OpenVPN, and IPsec

By admin April 1, 2026

A hands-on guide to configuring WireGuard, OpenVPN, and IPsec on Linux. Learn how to troubleshoot routing, DNS, and MTU issues from a system administrator's perspective.