system administration – Page 3 – ITFROMZERO

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.

Linux

Mastering Software RAID on Linux with mdadm: Practical Experience from Lab to Production

By admin April 30, 2026

A hands-on guide to managing RAID 1/5/6 on Linux using mdadm. Discover troubleshooting secrets and storage optimization tips based on real-world experience.

Centos

Configuring LDAP on CentOS: Effortlessly Manage Hundreds of Servers Centrally

By admin April 29, 2026

A detailed guide on configuring LDAP Client on CentOS using SSSD. A solution that helps SysAdmins manage hundreds of servers centrally, securely, and professionally.

Linux

Linux ACL: How to Set ‘Ultra-Detailed’ Permissions for Each User (Replacing chmod 777)

By admin April 24, 2026

Forget chmod 777! Learn how to use Linux ACLs for 'surgical' user and group permissions, solving permission issues in real-world projects.

Security

Turning Linux into a Database: Querying and Security Monitoring with osquery

By admin April 21, 2026

Stop struggling with Bash scripts. Learn how to use osquery to query the Linux operating system using SQL, making security monitoring and infrastructure management 10x more efficient.

Ubuntu

Forgot Your Ubuntu Password? How to Reset via GRUB & Recovery Mode in 5 Minutes

By admin April 21, 2026

Forgetting your Ubuntu password is no longer a disaster. Here is a detailed guide on 2 ways to reset your password via GRUB and Recovery Mode, helping you regain control of your server in under 5 minutes.

Monitoring

Simplify Linux Server Monitoring with Glances Web Dashboard

By admin April 19, 2026

Forget complex terminal commands. Glances provides a comprehensive Linux monitoring dashboard right in your browser. Fast, lightweight, and highly intuitive.

Virtualization

Deploying oVirt: An Enterprise KVM Management Solution to Replace VMware vSphere

By admin April 19, 2026

A detailed guide on deploying oVirt 4.5 as a VMware vSphere alternative for enterprises. Real-world insights on installing Hosted Engine and configuring Storage and Network on KVM.