Nginx reverse proxy for 4 server load Balancing

1. Nginx can be used as a seven-layer negative load equalization server to realize the dispatch of real server in backend, mainly using upstream instruction to reverse proxy.
   

2. Topology diagram of Nginx load Balancer implementation

650) this.width=650; "src=" Http://s3.51cto.com/wyfs02/M02/6E/B9/wKiom1WDy1KjVSDnAAFm2jotsE4021.jpg "title=" Nginx.jpg "alt=" Wkiom1wdy1kjvsdnaafm2jotse4021.jpg "/>

3. Install the configuration server

2 Apache Install and start service

2 apahce+php Install and start the service

Nginx Installation configuration file

The reverse proxy poll of the Nginx version 0.8.55,1.0.9 can not be started normally, then I used 1.6.0 version, boot no error

Then configure the nginx.conf file

650) this.width=650; "src=" http://s3.51cto.com/wyfs02/M02/6E/BA/wKiom1WDzm3i8LGNAAGcVaiN_Uw912.jpg "title=" nginx1 . PNG "alt=" Wkiom1wdzm3i8lgnaagcvain_uw912.jpg "/>

4. Perform test validation

650) this.width=650; "src=" http://s3.51cto.com/wyfs02/M02/6E/B6/wKioL1WD0JeBWsxaAAFLHoybsf4825.jpg "title=" nginx2 . PNG "alt=" Wkiol1wd0jebwsxaaaflhoybsf4825.jpg "/>

Test success

Nginx reverse proxy for 4 server load Balancing