PostgreSQL replication is a robust solution for ensuring database availability, load balancing, and failover readiness. This guide provides a step-by-step approach to setting up Master-Slave replication on Debian 12, using PostgreSQL 15, along with hostname-based configurations. 1. System Prerequisites 1.1 Server Environment We will use four Debian 12 servers with PostgreSQL 15 installed: 1.2 Update… Continue reading →