system administration – ITFROMZERO

Recover Linux Partitions and Data: A Practical Guide to TestDisk and PhotoRec

By admin May 16, 2026

Lost data or accidentally deleted a Linux partition? A practical guide on using TestDisk and PhotoRec to recover data quickly and safely from an expert.

Network

Monitor Linux Networks with ntopng: No More ‘Looking for a Needle in a Haystack’ During Lag

By admin May 15, 2026

Forget dry netstat commands. This guide helps you install ntopng on Linux for visual network monitoring, catching every IP causing bandwidth congestion.

Linux

Linux Kiosk Mode with Openbox: Turn Old Computers into ‘Indestructible’ Information Stations

By admin May 15, 2026

Learn how to set up a professional Linux Kiosk Mode with Openbox. A solution to transform low-spec computers into stable, secure, and ultra-lightweight information stations.

Fedora

DNF History: The ‘Time Machine’ for Risk-Free Fedora System Tweaking

By admin May 14, 2026

Fedora system issues after an update? Don't worry, dnf history lets you rollback, undo, and manage your software installation history safely and quickly.

Linux

Mastering lsof on Linux: Pro Tips for Finding Processes Occupying Ports and Fixing ‘Too Many Open Files’ Errors

By admin May 14, 2026

Linux users shouldn't miss out on lsof for monitoring file descriptors and fixing 'Too many open files' errors. Check out 5 real-world troubleshooting tips from a system expert.

Monitoring

Configuring Monit: The “Lifesaver” that Automatically Restarts Linux Services at 3 AM

By admin May 12, 2026

Don't let server crashes ruin your sleep. Learn how to configure Monit to automatically monitor and restart Nginx and MySQL when issues occur.

MySQL

MySQL 5.7 to 8.0: A Safe Upgrade Path and Pitfalls to Avoid

By admin May 12, 2026

A practical guide to safely upgrading MySQL 5.7 to 8.0. Learn how to handle authentication errors, reserved keywords, and optimize performance post-upgrade.

Fedora

Mastering akmods on Fedora: Say Goodbye to Driver Breakage After Kernel Updates

By admin May 11, 2026

Lost your Nvidia or VirtualBox drivers after updating Fedora? Learn how to use akmods to automatically rebuild modules, keeping your system stable and clean.

VMware

Configuring Autostart on VMware ESXi: A Pro Tip for Automated System Recovery

By admin May 7, 2026

Configuring Autostart on VMware ESXi allows virtual machines to automatically boot in the correct order after a host reboot. Learn to set Delay and Heartbeat for optimal recovery.

Centos

Mastering ReaR (Relax-and-Recover): A Bare Metal Disaster Recovery Solution for CentOS

By admin May 1, 2026

Don't let server disasters keep you up at night. Learn how to use ReaR on CentOS for full system Bare Metal Recovery in just 15 minutes.