f5 load balancer features

LB cluster:The lb cluster is a shorthand for the load balance cluster, translated into Chinese. Common load Balancing open source software has Nginx, LVS, keepalived, commercial hardware load equipment F5, Netscale. LB Cluster Architecture:650) this.width=650; "src=" Http://s5.51cto.com/wyfs02/M02/78/2D/wKiom1Z3aBbiG0T

Using partition and server load balancer to achieve greater and better MySQL database optimization and use is a very complicated issue. so how can we make the database bigger and better? This article will show you how to use partition and load balancing solutions to make your MySQL bigger and better. Larger MySQL Adding more MySQL instances is an effective way t

DNS round robinDNS round robin refers to interpreting the same domain name to different IP addresses and randomly using a host technology. However, it has obvious disadvantages: Once a server fails, even if the DNS settings are modified in time, it still takes enough time (refresh time) to take effect. During this period, the client computer that saves the address of the faulty server cannot access the server normally. DNS load balancing uses a simple

, there are also real-time static content, the Mop-like hodgedge and Netease community use such strategies.Category 3: The content changes in real time and is very personalized. For example, for mailbox applications, the content provided by such services cannot be static and can only be optimized through regional deployment and load balancing.For the vendors that provide cdn services, static content cdn is naturally no problem. For the third type of s

1. Introduction to HAproxy HAproxy is a high-performance proxy server. It provides Lay4 and Lay7 proxies, featuring Healthcheck, Server Load balancer, and access control. It can support tens of thousands of concurrent connections with excellent performance. In addition, the HAproxy operating mode enables it to be easily and securely integrated into the current architecture, while protecting the web servers

From: http://blog.s135.com/post/307/ DNS round robinDNS round robin refers to interpreting the same domain name to different IP addresses and randomly using a host technology. However, it has obvious disadvantages: Once a server fails, even if the DNS settings are modified in time, it still takes enough time (refresh time) to take effect. During this period, the client computer that saves the address of the faulty server cannot access the server normally. DNS

realserver 1 ", the webpage information provided by 192.168.24.45 is "welcome realserver 2" # ipvsadm-A-t 172.16.100.24: 80-s rr # ipvsadm-a-t 172.16.100.24: 80-r 192.168.24.44-m # ipvsadm-a-t 172.16.100.24: 80-r 192.168.24.45-m # ipvsadm-L-n -- view the defined rules. These rules are temporary rules, it will not take effect permanently. To save the rule permanently, run the following command: # service ipvsadm save 5. access 172.16.100.24 in the Internet Explorer, as shown in: If you access 17

Lab Environment:redhat6.5 version Virtual machine 3 units:server1:172.25.44.10, Memory 1024m,cpu dual Coreserver2:172.25.44.20, Memory 512m,cpu single coreserver3:172.25.44.30, Memory 512m,cpu single coreThese three virtual machines iptables are off and SELinux is disabled state.the difference between Apache and Nginx :Nginx's advantages over Apache: Lightweight, also Web services, Nginx consumes less memory and resources than Apache. Nginx processing request is asynchronous non-blocking, and Ap

1. Like Apache, they are both HTTP server software and adopt Modular Design for function implementation. They all support common language interfaces. At the same time, they also support forward and reverse proxies, virtual hosts, and URL rewriting,CompressionTransmission, SSL encrypted transmission, and so on. However, in terms of execution efficiency, nginx processes faster and consumes less memory resources. In addition, nginx also supports fcgi, which is not supported by Apache. 2. nginx adva

feature is richer and more flexible, and makes the entire network smarter. As shown, the connections on both sides of the seven-tier load balancer (client-side and server-side) are independent.3. In short, four-tier load balancing is based on the ip+ port. Seven-tier load balancing is achieved through application-leve

Recently, the company had a project where users worried that a single machine could not afford the most users, and they required to use the application cluster. We designed the application cluster architecture based on the application situation. The architecture diagram is as follows: 650) this. width = 650; "style =" border-bottom: 0px; border-left: 0px; margin: 0px; border-top: 0px; border-right: 0px "title =" logical architecture "border =" 0 "alt =" logical architecture "src =" http://www.bk

;Tcp_nodelay on;Upstream 192.168.2.62 {Server 192.168.2.62:8081;Server 192.168.2.62:8082;}server {Listen 80;server_name 192.168.2.62;Location/{Proxy_pass http://192.168.2.62;Proxy_set_header X-real-ip $remote _addr;}}}Set Nginx to start automatically, the startup script is as follows:#!/bin/bash# nginx Startup script for the Nginx HTTP Server# Chkconfig:-85 15# Description:nginx is a high-performance Web and proxy server.# It has a lot of features, bu