Nginx server blocks — equivalent to Apache’s virtual hosts — allow a single Nginx instance to serve multiple websites from one server. Each server block defines a distinct configuration scope that responds to specific domain names or IP addresses. On RHEL 8, additional server block configuration files are stored under /etc/nginx/conf.d/ and automatically loaded by […]
Introduction How to Configure Btrfs Subvolumes and Snapshots on Debian 13 is a fundamental operation for any administrator maintaining a Debian 13 Trixie server. Debian 13 Trixie ships with the Linux 6.12 kernel, updated toolchains, and a fully refreshed package archive — meaning version numbers, configuration file paths, and some dependency chains differ from Debian […]
Introduction Debian 13 Trixie is built around the ethos of stability and free software. Setting up set up software raid with mdadm on Trixie leverages the same proven Debian packaging system that powers millions of servers worldwide, while benefiting from the latest upstream releases included in the Trixie freeze. Follow each step carefully and the […]
Apache HTTP Server (httpd) is one of the most widely deployed web servers in the world and is fully supported on RHEL 8 through the AppStream repository. After installing the httpd package, you will configure the firewall, review the main configuration file, and serve content from a custom document root. This tutorial covers everything you […]
Introduction This guide explains how to Extend an LVM Logical Volume on Debian 13 on Debian 13 Trixie. Debian Trixie uses systemd for service management, nftables as the underlying packet filter (with ufw or iptables front-ends still available), and AppArmor for mandatory access control. Every command is designed for a minimal Debian 13 install with […]
Nginx is a high-performance web server and reverse proxy widely used in production Linux environments. On RHEL 8, Nginx is available through the AppStream repository, making installation straightforward with dnf. Once installed, you will need to configure the firewall and SELinux to allow web traffic. This tutorial walks you through a complete Nginx installation and […]
Introduction Debian 13 Trixie is built around the ethos of stability and free software. Setting up configure lvm on Trixie leverages the same proven Debian packaging system that powers millions of servers worldwide, while benefiting from the latest upstream releases included in the Trixie freeze. Follow each step carefully and the resulting configuration will persist […]
NetworkManager is the default network management stack on RHEL 8, and nmcli is its fully-featured command-line interface. Using nmcli, administrators can create, modify, activate, and delete network connections entirely from the terminal — no GUI or .ifcfg file editing required. This tutorial covers inspecting current network state, configuring a static IP address, managing connections, and […]
Introduction Debian 13 Trixie is built around the ethos of stability and free software. Setting up install checkmk on Trixie leverages the same proven Debian packaging system that powers millions of servers worldwide, while benefiting from the latest upstream releases included in the Trixie freeze. Follow each step carefully and the resulting configuration will persist […]
DNF (Dandified YUM) is the default package manager on RHEL 8, replacing the older yum command with improved dependency resolution, transaction history, and modular package support through AppStream. Whether you are installing software, managing module streams, or adding third-party repositories like EPEL, dnf is the single tool for the job. This tutorial covers daily package […]
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