Linux Nginx Soft Load Implementation Tutorial

Slightly larger sites are inevitably load balanced, but hardware load balancing is expensive. There is cheap nginx under Linux as software load balancing.

I. Experimental environment configuration and topology diagram
Web01:rhel 6.4 x86_64 default desktop installation Web02:rhel 6.4 x86_64 default desktop installation Nginx:rhel 6.4 x86_64 basic installation

Second, configuration server
(1) Configuring Web01 server

1. Turning off the firewall and selinux
   
   service iptables stop;setenforce 0
   Creating the main folder of the web application
   
   mkdir /var/www/Hjq
   Writing the main page
   
   echo ‘lythjq01.com’ > /var/www/hjq/index.html
   Editing /etc/httpd/conf/httpd.conf
   < Br>Enable NameVirtualHost *:80 (ie delete #) to add the following information at the end of the document <VirtualHost *:80> DocumentRoot /var/www/hjq ServerName lythjq01.com ErrorLog logs/dummy-host.example.com-error_log CustomLog logs/dummy-host.example.com-access_log common
   
   1. 
      
      
      Restart httpd service
      
      service httpd restart
      Test access
      
      (2) Configure Web02 server configuration and Web01 is the same, only the main page display is changed to lythjq02.com (c) Configure the nginx server to download the latest nginx
      1. from the official website. Unzip the downloaded nginx
         
         tar -xvf nginx-1.9.2.tar. Gz
         Go to the unzipped directory
         
         cd nginx-1.9.2
         Install the necessary compilation tools and other required packages (yum source configuration section is described here)
         
         yum Install –y pcre-devel zlib-devel openssl-devel gcc gcc-c++
         generate makefile
         
         1. 
            compile and install
            
            make;make install
            edit configuration File
            
            vim /usr/local/nginx/conf/nginx.conf edit as shown below:
            Create soft link
            
            ln –s /usr/local/nginx/sbin/Nginx /usr/local/sbin
            Turn off the firewall and selinux
            
            service iptables stop;setenforce 0
            1. Start nginx
               
            2. 
               Test page
               
               Refresh to continue testing

               Three, think
               This is the simplest nginx load, but considering the real The situation will need to detect if a server can provide normal service will forward data access, there is the session sharing, the actual production environment needs. This is only used as a joke.