keepalived Archives

High Availability with Keepalived on Linux: Virtual IP and Automated Failover

October 10, 2026

When your primary web node crashes at 2 AM, every second of downtime counts. Here is how to configure Keepalived on Linux with a floating Virtual IP and automated health checks for sub-two-second, seamless failover.

Networking

High Availability Virtual IP with Keepalived and VRRP on Linux: A 6-Month Production Review

October 3, 2026

A single gateway crash can bring down an entire stack. Here is a 6-month production review of implementing High Availability Virtual IP using Keepalived and VRRP on Linux, featuring real metrics, configurations, and post-mortem lessons.

Networking

Keepalived & VRRP: Build a Floating IP for High Availability on Linux

April 9, 2026

Keepalived implements VRRP on Linux to give your servers a shared floating IP address. When the primary node fails, the standby automatically claims the VIP in seconds. This step-by-step guide covers installation, configuration, health check scripts, and failover testing on Ubuntu/Debian.