https://1water1.top/categories/high-availability/Recent content in High Availability on LoveItHugoenThis work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.Mon, 29 Dec 2025 14:20:14 +0800https://1water1.top/building-keepalived-nginx-dual-master-ha-cluster/Tue, 23 Dec 2025 00:00:00 +0000https://1water1.top/building-keepalived-nginx-dual-master-ha-cluster/<h1 id="building-a-keepalived--nginx-dual-master-ha-cluster-from-scratch-ubuntu-2404">Building a Keepalived + Nginx Dual-Master HA Cluster from Scratch (Ubuntu 24.04)</h1> <blockquote> <p><strong>Preface</strong>: I recently grabbed a domain for just a dollar and decided to tinker with server high availability architectures. In a production environment, a single point of failure (SPOF) is a DevOps nightmare. Today, I&rsquo;m documenting how I used Keepalived to implement a <strong>Dual-Master (Active-Active)</strong> architecture.</p> <p><strong>Goal</strong>: Two servers acting as backups for each other. Normally, each handles one VIP (Virtual IP). If one server fails, the other instantly takes over all traffic!</p>