This article uses a restaurant analogy to demystify Keepalived’s routing mechanisms, detailing the three routing modes—NAT, TUN, and Direct Routing (DR)—their configurations, underlying principles, advantages, limitations, and practical deployment considerations within load‑balancing environments.
This article explains the concepts, mechanisms, and trade‑offs of Overlay and Underlay network models for container networking in Kubernetes, covering VXLAN, MAC VLAN, IP VLAN, and direct‑routing approaches with practical examples and configuration details.
This tutorial walks you through installing LVS on a Red Hat server, configuring the router, setting up virtual and real servers, adjusting ARP tables, and validating the cluster with ipvsadm, curl, and Tsung performance testing, all while ensuring high‑throughput static web delivery.
LVS (Linux Virtual Server) is a core kernel module for load balancing that forwards client requests to backend servers using three main mechanisms—Network Address Translation (NAT), IP tunneling (TUN), and Direct Routing (DR)—each with distinct packet handling and performance characteristics.
