Apache Load Balancer operation Apache function is actually very powerful, recently studied the next Apache reverse proxy and load balancing, reverse proxy network network export and my blog export is through the reverse proxy Apache implementation, summed up, the emphasis on load balancing
: This article mainly introduces apache and nginx server load balancer configurations. For more information about PHP Tutorial, see.
I. apache server load balancer is actually very powerful in operating apache. Recently, I have studied apache reverse proxy and server load
Cluster service and who is the backend real server
Iii. related Terms of LVS
Ds:director Server, which refers to the front-end load balancer node.
Rs:real server, backend real work server.
VIP: An IP address that is directed externally to a user request as the target of a user request.
Dip:director Server IP, front-end load
/ Wyfs02/m00/8a/a9/wkiom1g2od3jwkxnaagridr3oru542.png-wh_500x0-wm_3-wmp_4-s_2765529799.png "/>In we example, the keepalived configuration file (/etc/keepalived/keepalived.conf) at the LD1 looks like:Lab Environment:System platform: RedHat Linux 6.4 32-bitkernel:2.6.32-358.el6.i686LVS version ipvsadm-1.26-1.src.rpm (http://www.linuxvirtualserver.org/)Keepalived version keepalived-1.3.1.tar.gz (http://www.keepalived.org/download.html)1. Configure lvs+ke
1. When configuring Server Load balancer, you need to install the TCP/IP protocol on each computer or server that needs to implement the Server Load balancer environment, and it is best not to install other protocols on these machines (such: IPX/SPX Protocol) to avoid affecting the
system version : Ubuntu 14.04.3 LTSServer Preparation :lb01-> ifconfig Display Result: 192.168.91.136 effect: Install keepalived and Nginxlb02-> ifconfig Display Result: 192.168.91.135 effect: Install keepalived and Nginxweb01-> ifconfig Display Result: 192.168.91.134 effect: Install Nginx is responsible for showing index.html pageweb02-> ifconfig Display Result: 192.168.91.137 effect: Install Nginx is responsible for showing index.html pageOperating principle1 Nginx acts as a Web server on WEB0
html; index index.html index.htm; proxy_pass http://nginxDemo; #配置方向代理地址 }Such as:3. Start Nginx and Tomcat to accessI am a Windows system, so just double-click Nginx.exe in the nginx-1.10.1 directory.can be viewed in Task ManagerFinally enter the address in the browser: http://localhost:8080/nginxDemo/index.jsp, each visit will take turns to access Tomcat (if F5 refresh is not used, it is recommended to try to put the mouse point
Nginx tomcat cluster and Server Load balancer configuration instanceI. Introduction to concepts used in nginx tomcat
1. Reverse Proxy. When a client request arrives, the reverse proxy receives the request and forwards the request to the backend server. If load balancing is performed, the request is distributed to the S
Nginx Server Load balancer configuration instance details
Server Load balancer is one of the things we need to do for a large-traffic website. Next I will introduce how to configure Server Load
AWS EC2 Server Configuration load balancer steps:1. General Load BalancerAt least two EC2 instances, Here take the Centos6.7 system as an example to install an Apache httpd server default 80 port, or use a different server and port also line, configure the load
-host hot backup, supports virtual hosts, has a very good server health check function, when the back-end server of the proxy fails, HAProxy will automatically remove the server and automatically add the server after the fault is restored. It also provides an intuitive monitoring page, the service cluster running status can be clearly monitored in real time.
In the new version 1.3, frontend and backend configuration segments are introduced. frontend p
Spring-cloud:eureka: Ribbon Load Balancer Configuration (i)For example, I have:One Eureka service: 8761Two User service: 7900/7901 portsOne movie service: 80101. After starting the Eureka service2. A colleague initiates two services for user3. Start the movie serviceEureka service startup file join:@EnableEurekaServerUser/movie Server startup file join@EnableEure
balancemember are members in the cluster. Port 8009 is the AJP port name of Tomcat.
The above amendment: This was neglected during the test yesterday and was discovered only during the test at the company today. You must note that route = worker1 and route = worker2 in the balancermember line cannot be added. Once added, distributed access will not be performed through the Apache designation, therefore, you must remove it here. Otherwise, operations will only be performed in a tomcat container.
Many large sites, ngixn often as a reverse proxy sever load upstream Web server with high availability mechanism to build a large Web cluster, and to build such a cluster through nginx, it is inevitable that the nginx a very important module: Load Balancer module ( Upstream), as shown below is an introduction to the Nginx Lo
certificate verification probably failed due to a problem with the certificate (it might be expired, or the name might not match the domain name in the URL).If you‘d like to turn off curl‘s verification of the certificate, use the -k (or --insecure) option.Explanation: This issue was flagged as untrusted because the certificate was issued by us, but was actually successfully configured.7. Access using the browserFirst in the Windows system to add the hosts to resolve the aming.com, if you can n
/local/nginx/sbin: $PATH------------------------SOURCE!$EffectStart NginxNginx----------------Enter ip\\\\\\\\\\\\\\\\\\\\\\ on the browser and do not conflict with HTTP portAppear"Welcome to nginx! ”Installation SuccessfulWhen you are going to change the configuration fileUpstream App1 {Ip_hash;Server 192.168.1.51:80;Server 192.168.1.52:80;Server 192.168.1.53:80;}server {Listen 80;server_name localhost;#charset Koi8-r;#access_log Logs/host.access.log
Nginx Server Load balancer configuration instance details
First, let's take a brief look at what Server Load balancer is. Simply understanding what it means literally can explain that N servers are equally loaded, A server is not idle because of its high
the main server can be added here IP192.168.5.149 or 127.0.0.1 can both represent access to themselves.Restart Nginx, and then visit a.com to see if it will be assigned to the primary server.OkThe primary server is also able to join the service normally.finallyOne, load balancing is not nginx unique, famous dingding Apache also have, but performance may not be as nginx.Second, more than one server to provide services, but the domain name only resolve
by default.In addition, in the case of failonstatus, only the next request will fail, and the first request will send the corresponding error message, such as 500 or 404, to the client.
In addition, we can also use the session cookie, such as JSESSIONID, that comes with the server load Member Server. The following is the configuration for Tomcat.Apache2.2 \ conf \ httpd. conf
Balancermember http: // 19
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