pgAdmin 4 is the official open-source administration and development platform for PostgreSQL, providing a rich web interface for managing databases, running queries, monitoring activity, and visualizing schemas. On RHEL 8, the recommended installation path is the official PostgreSQL Global Development Group (PGDG) repository, which ships pgAdmin 4 as a dedicated web application package with a […]
Regular database backups are one of the most important operational habits for any MySQL deployment, and RHEL 8 provides all the tools you need to implement a solid backup strategy. mysqldump produces portable SQL dumps that are easy to restore and inspect, while mysqlpump adds parallelism for faster exports on larger datasets. This tutorial covers […]
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 […]
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 […]
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 […]
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 […]
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 […]
PostgreSQL is a powerful, standards-compliant open-source relational database known for its extensibility, advanced data types, and strict ACID compliance. RHEL 8’s AppStream makes multiple PostgreSQL major versions available as installable modules, so you can target a specific release without managing external repositories. This guide demonstrates installing PostgreSQL 13 via the AppStream module system, initialising the […]
MariaDB is a community-developed, fully open-source relational database management system that was forked from MySQL and remains highly compatible with it. On RHEL 8, MariaDB is conveniently available through the AppStream module system, allowing you to install a specific stream version without adding third-party repositories. This tutorial covers installing MariaDB 10.5 via AppStream, starting and […]
MySQL 8 is one of the most widely deployed relational database systems in the world, offering robust performance, strong security features, and broad application compatibility. On RHEL 8, MySQL is not included in the default AppStream modules, so you must add the official MySQL community repository before installing. This guide walks through adding the MySQL […]
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