multi wan load balancing

; # youliaoo system service address, lan address, I still use 10 machines, you can also configure other addresses in the LAN Proxy_redirect off ; Proxy_set_header Host $ Host ; Proxy_set_header x - Real - IP $ remote_addr ; Proxy_set_header x - Forwarded - For $ Proxy_add_x_forwarded_for ; } } In this way, all requests using 10.10.10.10 will be forwarded to the system running on 10.10.10.10: 8800. Requests using www.youliaoo.com or other domain names will be forwarded to 10

This article is mainly about the simplest solution--dns polling.DNS PollingMost domain name registrars support the resolution of multiple A records, in fact, this is the DNS polling, the DNS server will resolve the request in accordance with the order of a records, one by one assigned to a different IP, so that the simple load balancing is completed.Advantages Basically no cost, because often domai

650) this. width = 650; "style =" border-bottom: 0px; border-left: 0px; border-top: 0px; border-right: 0px "title =" image "border =" 0 "alt =" image "src =" http://www.bkjia.com/uploads/allimg/131227/031R16441-0.png "" 835 "height =" 219 "/> How does one achieve load balancing on multiple links? Two methods: 1. Build an EBGP neighbor using the loopback port and use EBGP

1.HAProxy Introduction Haproxy is an open-source, high-performance, load-balancing software based on TCP (four-tier), HTTP (seven-tier) applications. That haproxy as a professional load balancer software, it has the following advantages: Very good reliability and stability, comparable to hardware-level F5 load

', can be placed on the second line (below #/bin/sh)Chkconfig--add Apache #添加服务Service Apache Start #启动服务 Configure load balancing and session hold1. Modify apache_home/conf/httpd.conf, add the following module (uncomment, if other dependencies, then uncomment accordingly) 123 LoadModule proxy_module Modules/mod_proxy. SoLoadModule proxy_http_module modules/mod_proxy_http. S

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Data Flow schema diagram:650) this.width=650; "src=" Https://s4.51cto.com/wyfs02/M02/98/93/wKiom1k-T9OhQHDDAACF_BZBj48079.png "title=" Qq20170612162418.png "alt=" Wkiom1k-t9ohqhddaacf_bzbj48079.png "/>First, the test environment Host Name Ip Vip Lvs01 192.168.137.150 192.168.137.80 Lvs02 192.168.137.130 Web01 192.168.137.128 -- Web02 192.168.137.134 -- Ii. installat

MySQL.Practical operation: Load Balancing cluster setup1. Download MARIADB clusterwget http://mirrors.opencas.cn/mariadb/mariadb-galera-10.0.17/bintar-linux-x86_64/ Mariadb-galera-10.0.17-linux-x86_64.tar.gz2. Add MARIADB Users and GroupsGroupadd mariadbUseradd-g mariadb mariadb3. Copy the downloaded file to the directory/usr/src4. Unzip and copy the extracted files to/usr/local/mysql[Email protected]:/usr

See First: Legendserver Topology architecture diagramSince the last censored test is inaccurate when it comes to statistical CCU, the optimization of load balancing needs to be done:Each type of server can be multi-configuration but each server in the processing logic is single-threaded, but each server in parallel with the center interaction, not by proxy, AC, l

/nginx.pid; #最大文件描述符worker_rlimit_nofile51200; events {use epoll; Worker_connections51200;} HTTP {include mime.types; Default_type Application/octet-stream; Keepalive_timeout120; Tcp_nodelay on; Upstream192.168.1.109{Server192.168.1.110:8080; Server192.168.1.111:8080; } Server {Listen80; server_name192.168.1.109; Location/{proxy_pass http://192.168.1.109;Proxy_set_header Host $host; Proxy_set_header X-real-IP $remote _addr; Proxy_set_header X-forwarded-For $proxy _add_x_forwarded_for;

The CentOS system builds nginx load BalancerFirst, about the CentOS system introductionCentOS (Community Enterprise Operating System, Chinese means: Community Enterprise operating system) is one of the Linux distributions, it comes from Red Hat enterprise Linux is compiled according to the source code released by the open source rules. Based on Red Hat's continuous upgrade, and fixes for known bugs, CentOS is more used to build large enterprise-class

posted here and knows the answers to my doubts.The virtual host in the nginx.conf.server_name edi.qnb.com;Virtual hosts in the Server.xmlWhy do the names of the two virtual hosts have to be the same? Can a great God give me an explanation ...Unofficial explanation: I was so understanding, a full Web server, a front-end browser access to--nginx, back-end processing request data--tomcat. After these two are together, a complete Web server is formed. So the host name must be the same!!! 2015.8.28

18.6 Load Balancing Cluster introduction Main open source software LVs, keepalived, Haproxy, Nginx, etc. The LVS belong to 4 layer (network OSI 7 layer model), Nginx belongs to 7 layer, Haproxy can be considered as 4 layer, can be used as 7 layer The Keepalived load balancing function is actually the L

Net Distributed System II: The CentOS system builds Nginx load balancing and centosnginx 1. Introduction to CentOS CentOS (Community Enterprise Operating System) is one of the Linux releases. It is compiled by Red Hat Enterprise Linux according to the open source code. Based on the continuous upgrade of Red Hat and fixing of known bugs, CentOS is more used to build large enterprise-level servers. At present

from being exposed to the web.Here I use Haproxy to load multiple Redis servers and then monitor the haproxy with keepalived:(primary) Server a:10.10.51.231(from) Server b:10.10.51.232vip:10.10.51.230Keepalived Monitor A, B on the haproxy, the use of keepalived VIP drift technology, if a, b Haprox are working properly, VIP and High priority server (master server) binding, when the primary server when the drop, then the slave server bound, The VIP is

Our LVS-DR cluster is built with an LVS scheduler, and the entire cluster will be paralyzed if the scheduler fails in the production environment. The two-machine hot standby of the LVS Scheduler by keepalived can solve this problem very well. Keepalived uses the VRRP virtual Routing Redundancy Protocol to realize the multi-machine hot-standby function of Linux server in the way of software.Case topology: This lvs+keepalived cluster requires two Nginx

; #server 192.168.8.203:8080;}The above is the cluster group. Upstream is the keyword, static and dynamic are the names of the two server cluster groups. In the first example, server 127.0.0.1:808 is the server address, and the latter weight=1 is the weight. You can write more than one. Pro Test, one of the cluster is bad, does not affect the system operation. For more polling rules, you can refer to more information on the Web. Not much to say here. As for how to use it? Proxy_pass http://192.1

, "controller" Assign the controller name Jkmount/* to the load assigned in workers.propertise3, download mod_jk.so:http://mirror.bjtu.edu.cn/apache/tomcat/tomcat-connectors/jk/binaries/windows/, note download and Apache The same version of so is placed under the installation directory/modules folder4, create and configure the Workers.properties file under Conf, with the following content:Serverworker.list = controller#========tomcat1========worker.to

= Request.getparameter ("Dataname");if (dataname! = null dataname.length () > 0) {String DataValue = Request.getparameter ("DataValue");Session.setattribute (Dataname, DataValue);}Out.print ("list Enumeration E = Session.getattributenames ();while (E.hasmoreelements ()) {String name = (string) e.nextelement ();String value = Session.getattribute (name). toString ();OUT.PRINTLN (name + "=" + value+ "SYSTEM.OUT.PRINTLN (name + "=" + value);}%>name : value : Create Web-inf directory, creating Web

worker processes to restart services, smooth upgrade, change log files, configuration files in real-time function and other functions. To control Nginx, you only need to send a signal to the master process via kill. Kill Master 8682 as follows to stop NginxWorker processThe basic network events are handled in the worker process. Multiple worker processes are equivalent, they compete for requests from clients equally, and each process is independent of each other. A request can only be processed