MySQL Group Replication extends traditional replication with built-in automatic failover and a distributed consensus protocol, making it suitable for high-availability deployments without requiring additional orchestration tools. In single-primary mode, one node accepts writes at a time while all nodes serve reads, and the group automatically elects a new primary if the current one fails. This […]
Introduction How to Enable Brotli Compression on Nginx 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 […]
MySQL primary-replica replication allows one database server (the primary) to stream changes to one or more replica servers in near real-time, providing read scalability and a warm standby for disaster recovery. On RHEL 8, the setup involves editing MySQL configuration files on both servers, creating a dedicated replication user, and issuing a handful of SQL […]
Introduction How to Configure Apache2 with mod_security 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 12. […]
phpMyAdmin is a popular web-based interface for managing MySQL and MariaDB databases, offering a graphical alternative to the command line. On RHEL 8, you can install it quickly from the EPEL repository, which provides community-maintained packages not included in the default RHEL channels. After installation, a few configuration steps secure access and integrate phpMyAdmin with […]
Introduction This guide explains how to Install and Configure Varnish Cache 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 […]
Redis is an in-memory data structure store used as a database, cache, and message broker, capable of delivering sub-millisecond response times for millions of operations per second. On RHEL 8, Redis is available through the AppStream module system, giving you a straightforward installation path without third-party repositories. This guide covers installing Redis 6 via AppStream […]
Introduction Debian 12 Bookworm is built around the ethos of stability and free software. Setting up set up http/3 quic on nginx 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 […]
Introduction This guide explains how to Configure HTTP/2 on Nginx 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 […]
MongoDB is a leading document-oriented NoSQL database that stores data in flexible JSON-like BSON documents, making it well-suited for applications with evolving schemas, hierarchical data, or high-throughput write workloads. MongoDB is not included in the RHEL 8 AppStream, so you must add the official MongoDB repository before installing. This guide walks through creating the MongoDB […]
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