This guide walks through Apache httpd setup on CentOS, covering virtual host types (IP‑based, port‑based, name‑based), detailed configuration steps, access control methods for users and IPs, and enabling HTTPS with SSL certificates, complete with practical command examples and testing procedures.
A CentOS server appeared to lose dozens of gigabytes of RAM because the free command hides large Slab allocations, and the article explains how to identify, clear, and properly tune the system to prevent hidden memory consumption.
This tutorial walks through installing Xen virtualization on a CentOS 6.6 system, covering environment setup, required packages, kernel configuration, bridge networking, libvirt tools, and creating and cloning virtual machines using command‑line utilities.
This guide explains what sosreport does on RHEL/CentOS, how to install the sos package, generate a system diagnostic report, locate the compressed output, and use various command‑line options to include or exclude specific modules.
Learn a concise, five‑step process to safely replace MySQL with MariaDB on a CentOS system—including backup, removal of MySQL packages, downloading and installing MariaDB RPMs, restarting the service, and confirming compatibility with existing tools like phpMyAdmin.
The article details the official CentOS 7.0.1406 64‑bit release announced on July 7, 2014, highlighting kernel upgrades, container support, default JDK, installation media options, verification steps, major changes, downgrade options, known issues, and where to obtain source code and ISO images.
