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How to Configure kdump on Linux: Collecting Kernel Crash Dumps and Analyzing Critical System Failures

By admin June 25, 2026

kdump captures the entire state of RAM at the moment of a kernel panic — before the system has a chance to reboot. It is the only tool that allows sysadmins to investigate the root cause of a server crash when the logs record nothing. This guide covers installing and configuring kdump on RHEL/CentOS/Ubuntu, safely triggering a test crash, and analyzing vmcore files with the crash tool.

Centos

10 Essential Post-Installation Steps for CentOS Stream 9: A Production “Survival” Checklist

By admin June 15, 2026

Just installed CentOS Stream 9? Check out this checklist of 10 essential tasks to optimize security and performance based on real-world production experience.

Centos

Setting Up a Local Yum/DNF Repository: A Lifesaver for Slow Networks or Offline Environments

By admin May 27, 2026

A detailed guide on self-hosting a Local Yum/DNF Repository. An optimal solution to speed up software installation and manage Linux servers in local networks or offline environments.

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.

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.

VMware

Installing VMware Tools on Linux: Don’t Let Your VM Run at a Snail’s Pace

By admin April 26, 2026

Installing VMware Tools on Linux is easy if you use open-vm-tools. This guide provides detailed steps to install, fix copy-paste issues, and enable Shared Folders quickly.

Centos

How to Install and Configure a Secure FTP Server with vsftpd on CentOS Stream 9: SSL/TLS and Virtual Users

By admin April 25, 2026

A guide to installing vsftpd on CentOS Stream 9 with SSL/TLS (FTPS) and virtual users — completely isolating FTP accounts from system accounts. Includes detailed PAM, firewalld, and SELinux configuration based on real deployment experience.

Centos

OpenSCAP: The Automation ‘Weapon’ for PCI-DSS Security Audits on CentOS for DevOps

By admin April 21, 2026

Don't let security audits become a nightmare. Discover how to use OpenSCAP to automate vulnerability scanning and PCI-DSS compliance on CentOS/RHEL based on real-world DevOps experience.

Centos

The Secret to Server ‘Immortality’: Configuring HA Clusters with Pacemaker and Corosync

By admin April 17, 2026

Learn how to build a High Availability (HA) Cluster with Pacemaker and Corosync on CentOS/Rocky Linux. A detailed guide from installation and Virtual IP configuration to handling Split-brain errors.

Centos

Managing Disk Quota on CentOS: Essential Tips for Limiting Storage Space for Users and Groups

By admin March 27, 2026

Managing Disk Quota on CentOS is the optimal solution for allocating and limiting storage space for users/groups. This article provides a detailed guide on installing and configuring Quota, from enabling it on the filesystem to setting soft/hard limits and grace periods. Apply practical tips from real-world experience to maintain server stability and performance.