Failover Archives

Networking tutorial - IT technology blog

Ubuntu Dual WAN Load Balancing and Failover with IPRoute2 and Netplan

May 21, 2026

Learn how to configure Dual WAN Load Balancing and Failover on Ubuntu Server using IPRoute2 and Netplan. This guide covers policy-based routing and automated health checks for high-availability networking.

Networking

DIY SD-WAN: How We Used pfSense to Kill Downtime in Our Small Office

April 23, 2026

Tired of internet outages? Learn how to combine two ISP connections into one rock-solid network using pfSense, load balancing, and smart failover tactics.

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.

Linux

Network Bonding and Teaming on Linux: Boost Speed and Ensure Redundancy

March 28, 2026

After six months of continuous operation, I'm sharing my experience with network bonding and teaming on Linux. Learn how to combine multiple network cards to boost speed, ensure failover redundancy, and significantly improve network performance on your servers.