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This article explains how to build a high‑availability, million‑level concurrent architecture by combining Linux Virtual Server (LVS) for layer‑4 load balancing, Nginx for layer‑7 reverse proxy and caching, and Keepalived for VIP failover, including configuration examples and deployment modes.
This article explains the concept of IPVS (IP Virtual Server) as a layer‑4 load balancer, compares ipvs with iptables, details LVS scheduling algorithms, and provides step‑by‑step commands for configuring ipvsadm on both load‑balancer and real‑server nodes, including VIP setup and client testing.
This guide walks through planning a NAT architecture, preparing Linux hosts, configuring route and LVS servers, setting up real servers with httpd, creating an LVS NAT cluster, testing client access, and persisting ipvsadm rules for reliable load balancing.
This tutorial explains how to design and deploy a high‑availability web cluster using Linux Virtual Server (LVS) and Keepalived, covering terminology, test environment setup, detailed configuration steps, HA testing procedures, and a concise summary of the solution.
This article explains how modern web architectures use server clusters and load balancers, compares the three most popular software solutions—LVS, Nginx, and HAProxy—covers their architectures, operating modes, advantages, disadvantages, and provides guidance on selecting the right tool for different traffic scales.
This article explains how a simple single‑Tomcat deployment evolves into a multi‑layered load‑balancing architecture using Nginx, gateway authentication, static‑dynamic separation, and finally a combination of LVS and Nginx with DNS and CDN to handle massive traffic efficiently.
This article provides a step‑by‑step tutorial on installing Nginx, setting up reverse proxy and various load‑balancing methods, configuring upstream directives, enabling SSL, and building high‑availability clusters using Keepalived and LVS with detailed command examples and configuration snippets.
This article provides a step‑by‑step tutorial on installing Nginx, setting up reverse proxy and various load‑balancing methods, configuring upstream directives, deploying Keepalived for high‑availability failover, and building an LVS‑DR cluster to achieve robust, production‑grade traffic distribution.
This article uses a restaurant analogy to demystify Keepalived's routing mechanisms, detailing the NAT, TUN, and Direct Routing (DR) modes, their configurations, underlying LVS architecture, performance trade‑offs, and practical deployment considerations for high‑availability load balancing.
This article explains the principles and configuration of Keepalived, covering its role in providing high‑availability virtual IPs, the VRRP election process, traffic forwarding, load‑balancing algorithms, and practical configuration examples with vrrp_instance and vrrp_script directives.
This article compares LVS and Nginx load balancing, explaining their layer differences, performance characteristics, configuration flexibility, health‑check capabilities, and typical use‑cases, while also discussing related concepts such as forward/reverse proxy, static‑dynamic separation, and practical deployment considerations.
This article provides a step‑by‑step tutorial on installing Nginx, setting up reverse‑proxy and various load‑balancing methods, configuring SSL, deploying Keepalived for failover, and building an LVS‑DR high‑availability cluster with detailed command examples and configuration snippets.
This tutorial walks through installing Nginx, setting up upstream reverse‑proxy rules, configuring various load‑balancing algorithms, enabling SSL, deploying Keepalived for failover, and building an LVS‑DR high‑availability cluster with detailed commands and configuration examples.
This tutorial walks through installing Nginx from source, setting up upstream reverse‑proxy groups, configuring various load‑balancing methods (weight, IP hash, URL hash, least connections), enabling SSL, deploying Keepalived for failover, and building an LVS‑DR high‑availability cluster with detailed command‑line examples.
This article explains what load balancing is, why it’s needed, outlines its classifications—including DNS, hardware, and software methods—introduces Linux Virtual Server (LVS) and its four operating modes, and reviews common static and dynamic scheduling algorithms used to distribute traffic efficiently.
This article provides a comprehensive overview of Linux Virtual Server (LVS), covering its basic concepts, three‑tier architecture, load‑balancing techniques, scheduling algorithms, high availability, reliability, and suitable deployment environments for building high‑performance, scalable server clusters.
This article walks through the evolution of a web service architecture—from a single Tomcat server to a multi‑node setup with load balancers, gateways, static‑dynamic separation, and finally a combined LVS‑Nginx solution with DNS load balancing and CDN integration—explaining each component and its impact on scalability and reliability.
This article explains the origin and necessity of load balancing, compares DNS, hardware, and software approaches, details the Linux Virtual Server (LVS) architecture, its netfilter foundation, and the DR, NAT, and Tunnel operating modes with their advantages, disadvantages, and typical use cases.
This article explains the origins, types, and inner workings of load balancing—including DNS, hardware, and software solutions—covers the Linux Virtual Server (LVS) architecture, netfilter fundamentals, and compares DR, NAT, and Tunnel modes with their advantages, drawbacks, and ideal use cases.
This tutorial walks through preparing four CentOS 7 servers, installing and configuring IPVS, Keepalived, and Nginx, creating a virtual IP script, starting the services, and verifying the load‑balancing setup with ipvsadm, providing a complete high‑availability solution.