WebSockets provide a persistent, full-duplex communication channel over a single TCP connection, making them essential for real-time applications such as chat systems, live dashboards, and collaborative tools. Nginx can act as a reverse proxy that transparently upgrades incoming HTTP connections to the WebSocket protocol and forwards them to a backend application server. This tutorial walks […]
Introduction Debian 12 Bookworm is built around the ethos of stability and free software. Setting up tune kernel parameters with sysctl on debian 12 on Bookworm leverages the same proven Debian packaging system that powers millions of servers worldwide, while benefiting from the latest upstream releases included in the Bookworm freeze. Follow each step carefully […]
Serving web traffic over HTTPS requires a valid TLS certificate and a correctly configured web server. On RHEL 8, the openssl tool is available out of the box and lets you generate RSA keys, create certificate signing requests, and issue self-signed certificates entirely from the command line. Self-signed certificates are ideal for internal services, staging […]
Introduction Deploying manage users and groups on debian 12 on a Debian 12 Bookworm machine is straightforward thanks to Debian’s policy-compliant packaging. Unlike rpm-based distributions, Debian stores configuration helpers in /etc/default/, uses update-rc.d for older init scripts, and provides dpkg-reconfigure for interactive package configuration. This tutorial stays on the systemd path throughout. Prerequisites Before you […]
Introduction This guide explains how to Configure Swap Space on Debian 12 on Debian 12 Bookworm. Debian Bookworm 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 12 install with the standard […]
A LAMP stack — Linux, Apache, MariaDB, and PHP — is one of the most widely deployed web server configurations in enterprise environments. RHEL 8 ships with the tools needed to install and configure each component using dnf and its module system. This tutorial walks you through installing and securing a fully functional LAMP stack […]
Introduction How to Enable AppArmor Mandatory Access Control on Debian 12 is a fundamental operation for any administrator maintaining a Debian 12 Bookworm server. Debian 12 Bookworm 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 […]
A LEMP stack — Linux, Nginx, MySQL (or MariaDB), and PHP — is one of the most common foundations for hosting WordPress, Laravel, and other PHP applications. On RHEL 8, each component is available from the default AppStream repository using module streams, giving you fine-grained control over which PHP version you install without relying on […]
Introduction Deploying install and configure ufw firewall on debian 12 on a Debian 12 Bookworm machine is straightforward thanks to Debian’s policy-compliant packaging. Unlike rpm-based distributions, Debian stores configuration helpers in /etc/default/, uses update-rc.d for older init scripts, and provides dpkg-reconfigure for interactive package configuration. This tutorial stays on the systemd path throughout. Prerequisites Ensure […]
OpenLiteSpeed is the open-source edition of LiteSpeed Web Server and delivers significantly higher PHP throughput than Apache or standard Nginx for WordPress and other PHP-heavy applications. Unlike traditional web servers, OpenLiteSpeed uses its own event-driven architecture and a tight integration with the LSPHP interpreter to handle thousands of concurrent connections with minimal RAM. On RHEL […]
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