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 […]
Introduction This guide explains how to Set Up PostgreSQL Streaming Replication 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 […]
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 […]
Introduction Deploying configure postgresql remote access 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 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 […]
Introduction This guide explains how to Install PostgreSQL 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 Secure MySQL on RHEL 7 A default MySQL installation leaves several security gaps that can expose your databases to unauthorized access, data theft, or privilege escalation. On Red Hat Enterprise Linux 7, taking deliberate steps to harden MySQL immediately after installation is essential for any production or internet-facing system. This guide walks through […]
Introduction Debian 9 Stretch is built around the ethos of stability and free software. Setting up set up mariadb replication 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 and […]
Introduction This guide explains how to Secure the MariaDB Installation 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 […]
Introduction How to Install MariaDB on Debian 9 is a fundamental operation for any administrator maintaining a Debian 9 Stretch server. Debian 9 Stretch 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 9. This tutorial […]
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