Introduction Debian 9 Stretch is built around the ethos of stability and free software. Setting up set up mongodb replica set on debian 9 on Stretch leverages the same proven Debian packaging system that powers millions of servers worldwide, while benefiting from the latest upstream releases included in the Stretch freeze. Follow each step carefully […]
How to Install ClickHouse Columnar Database on RHEL 7 ClickHouse is an open-source columnar database management system developed by Yandex, designed specifically for online analytical processing (OLAP) workloads. Unlike traditional row-oriented databases, ClickHouse stores data by column, enabling it to read only the columns needed for a query and compress similar data together — resulting […]
Introduction This guide explains how to Install MongoDB on Debian 9 on Debian 9 Stretch. Debian Stretch 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 9 install with the standard repositories […]
How to Configure Redis Cluster and Sentinel on RHEL 7 Redis is an in-memory data structure store used as a database, cache, and message broker. For production environments requiring high availability and horizontal scalability, Redis offers two complementary mechanisms: Redis Cluster for automatic data sharding across multiple nodes, and Redis Sentinel for automatic failover of […]
Introduction Deploying configure mysql innodb tuning on debian 9 on a Debian 9 Stretch 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 You will […]
How to Install and Configure SQLite on RHEL 7 SQLite is a self-contained, serverless, zero-configuration relational database engine that stores an entire database as a single file on disk. Unlike PostgreSQL or MySQL, SQLite requires no dedicated daemon, no user accounts, and no network configuration — the database engine is a library linked directly into […]
Introduction Deploying install mysql 5.7 on debian 9 on a Debian 9 Stretch 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 You will need […]
How to Back Up PostgreSQL with pg_dump and pg_basebackup on RHEL 7 A reliable backup strategy is one of the most critical operational requirements for any PostgreSQL deployment. On RHEL 7, PostgreSQL provides several complementary backup tools suited to different recovery scenarios: pg_dump for logical, per-database backups that can be restored selectively; pg_dumpall for capturing […]
How to Set Up PostgreSQL Streaming Replication on RHEL 7 PostgreSQL streaming replication allows a standby server to continuously receive and apply WAL (Write-Ahead Log) records from a primary server in near real time, maintaining an up-to-date hot standby copy of the database. This is the foundation of high availability and read scaling strategies in […]
How to Configure PostgreSQL Remote Access and SSL on RHEL 7 By default, PostgreSQL on RHEL 7 only accepts connections from localhost and rejects all remote clients. For multi-tier applications where the web or application server runs on a separate host from the database, you need to explicitly open PostgreSQL to remote connections — and […]
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