{"id":2781,"date":"2014-04-09T07:14:27","date_gmt":"2014-04-09T07:14:27","guid":{"rendered":"http:\/\/blog.shineservers.com\/?p=2781"},"modified":"2014-04-09T07:14:27","modified_gmt":"2014-04-09T07:14:27","slug":"use-nginx-reverse-proxy-server","status":"publish","type":"post","link":"https:\/\/www.shineservers.com\/2014\/04\/09\/use-nginx-reverse-proxy-server\/","title":{"rendered":"How To Use Nginx As Reverse Proxy Server"},"content":{"rendered":"

Nginx is an open source Web server and a reverse proxy server. You can use nginx for a load balancing and\/or as a proxy solution to run services from inside those machines through your host’s single public IP address such as 202.54.1.1. In this post, I will explain how to install nginx as reverse proxy server for Apache+php5 domain called www.example.com and Lighttpd static asset domain called static.example.com. You need to type the following commands on\u00a0vm00<\/strong>having an IP address\u00a0192.168.1.1<\/strong>\u00a0only.<\/p>\n

DNS Setup<\/h2>\n

Make sure both www.example.com and static.example.com point to public IP address 202.54.1.1.<\/p>\n

Install nginx server<\/h2>\n

Type the following command to install nginx web server:
\n$ cd \/tmp
\n$ wget http:\/\/nginx.org\/packages\/rhel\/6\/noarch\/RPMS\/nginx-release-rhel-6-0.el6.ngx.noarch.rpm
\n# rpm -iv nginx-release-rhel-6-0.el6.ngx.noarch.rpm
\n# yum install nginx<\/code>
\nSample outputs:<\/p>\n

Loaded plugins: rhnplugin\nSetting up Install Process\nResolving Dependencies\n--> Running transaction check\n---> Package nginx.x86_64 0:1.2.1-1.el6.ngx will be installed\n--> Finished Dependency Resolution\nDependencies Resolved\n=========================================================================\n Package      Arch          Version                   Repository    Size\n=========================================================================\nInstalling:\n nginx        x86_64        1.2.1-1.el6.ngx           nginx        331 k\nTransaction Summary\n=========================================================================\nInstall       1 Package(s)\nTotal download size: 331 k\nInstalled size: 730 k\nIs this ok [y\/N]: y\nDownloading Packages:\nnginx-1.2.1-1.el6.ngx.x86_64.rpm                  | 331 kB     00:00\nRunning rpm_check_debug\nRunning Transaction Test\nTransaction Test Succeeded\nRunning Transaction\nWarning: RPMDB altered outside of yum.\n  Installing : nginx-1.2.1-1.el6.ngx.x86_64                          1\/1\n----------------------------------------------------------------------\nThanks for using NGINX!\nCheck out our community web site:\n* http:\/\/nginx.org\/en\/support.html\nIf you have questions about commercial support for NGINX please visit:\n* http:\/\/www.nginx.com\/support.html\n----------------------------------------------------------------------\n  Verifying  : nginx-1.2.1-1.el6.ngx.x86_64                          1\/1\nInstalled:\n  nginx.x86_64 0:1.2.1-1.el6.ngx\nComplete!<\/pre>\n
Configure the nginx web server as reverse proxy<\/h2>\n
Edit \/etc\/nginx\/conf.d\/default.conf, enter:
\n# vi \/etc\/nginx\/conf.d\/default.conf<\/code>
\nAdd\/correct as follows:<\/p>\n
\u00a0\n## Basic reverse proxy server ##\n## Apache (vm02) backend for www.example.com ##\nupstream apachephp  {\n      server 192.168.1.11:80; #Apache1\n}\n\n## Lighttpd (vm01) backend for static.example.com ##\nupstream lighttpd  {\n      server 192.168.1.10:80; #Lighttpd1\n}\n\n## Start www.example.com ##\nserver {\n    listen       202.54.1.1:80;\n    server_name  www.example.com;\n\n    access_log  \/var\/log\/nginx\/log\/www.example.access.log  main;\n    error_log  \/var\/log\/nginx\/log\/www.example.error.log;\n    root   \/usr\/share\/nginx\/html;\n    index  index.html index.htm;\n\n    ## send request back to apache1 ##\n    location \/ {\n     proxy_pass  http:\/\/apachephp;\n     proxy_next_upstream error timeout invalid_header http_500 http_502 http_503 http_504;\n     proxy_redirect off;\n     proxy_buffering off;\n     proxy_set_header        Host            $host;\n     proxy_set_header        X-Real-IP       $remote_addr;\n     proxy_set_header        X-Forwarded-For $proxy_add_x_forwarded_for;\n   }\n}\n## End www.example.com ##\n\n## START static.example.com ##\nserver {\n   listen      202.54.1.1:80;\n   server_name static.example.com;\n   access_log  \/var\/log\/nginx\/log\/static.example.com.access.log  main;\n   error_log   \/var\/log\/nginx\/log\/static.example.com.error.log;\n   root        \/usr\/local\/nginx\/html;\n   index       index.html;\n\n   location \/ {\n        proxy_pass  http:\/\/lighttpd;\n        proxy_next_upstream error timeout invalid_header http_500 http_502 http_503 http_504;\n        proxy_redirect off;\n        proxy_buffering off;\n        proxy_set_header        Host            static.example.com;\n        proxy_set_header        X-Real-IP       $remote_addr;\n        proxy_set_header        X-Forwarded-For $proxy_add_x_forwarded_for;\n    }\n}\n## END static.example.com  ##<\/pre>\n
Turn on Nginx<\/h3>\n
Type the following commands:
\n# chkconfig nginx on
\n# service nginx start<\/code><\/p>\n
Configure firewall<\/h3>\n
Set firewall as follows:<\/p>\n