Nginx- load balancing deployment

Nginx load balancing is more common, through the reverse proxy request to the respective different Server;

One advantage of the Nginx: Nginx can conduct their own health check and found that failure server will be automatically removed automatically added after the repair;

Here we need to 5 virtual machines for deployment;

Taiwan nginxserver responsible for reverse proxy load balancing;

4 as the Apache server; wherein two analog HTML; PHP simulation 2;

Configuration Nginx.conf

[root@sxb-1 conf]# vim nginx.conf
upstream htmlserver {
        server 192.168.88.102:80;
        server 192.168.88.103:80;
}

upstream phpserver {
        server 192.168.88.104:80;
        server 192.168.88.105:80;
}


    server {
        listen       80;
        server_name  localhost;

        #charset koi8-r;

        #access_log  logs/host.access.log  main;


        location ~* \.html$ {
                proxy_pass      http://htmlserver;

        }

        location ~* \.php$ {
                proxy_pass      http://phpserver;
        }

Build a foundation we can use

test:

[root @ sxb- 1 ~] # Curl 192,168 . 88,101 / index.html Content
 103 html 
[root @ bro - 1 ~] # Curl 192,168 . 88,101 / index.html Content
 102 html 
[root @ bro - 1 ~] # Curl 192,168 . 88,101 / index.html Content
 103 html 
[root @ bro - 1 ~] # Curl 192,168 . 88,101 / index.html Content
 102 html

[root @ sxb- 1 ~] # Curl 192,168 . 88,101 / index.php
 104 php 
[root @ bro - 1 ~] # Curl 192,168 . 88,101 / index.php
 105 php 
[root @ bro - 1 ~] # Curl 192,168 . 88,101 / index.php
 104 php 
[root @ bro - 1 ~] # Curl 192,168 . 88,101 / index.php
 105 php

Test automatically removed automatically add:

102 Strategies for firewall policy If you are adding DROP, the test will occur Caton; (DROP to drop, Nginx will continue to send until it times out;)

[root @ sxb- 1 ~] # iptables -t filter input -a -p TCP --dport 80 - j seventies 
[root @ bro - 1 ~] # Curl 192,168 . 88,101 / index.html Content
 103 html 
[root @ bro - 1 ~] # Curl 192,168 . 88,101 / index.html Content
 103 html 
[root @ bro - 1 ~] # Curl 192,168 . 88,101 / index.html Content
 103 html 
[root @ bro - 1 ~] # Curl 192,168 .88.101/index.html
103 html

Clear strategy:

[root @ sxb- 1 ~] # iptables - F 
[root @ bro - 1 ~] # Curl 192,168 . 88,101 / index.html Content
 103 html 
[root @ bro - 1 ~] # Curl 192,168 . 88,101 / index.html Content
 103 html 
[root @ bro - 1 ~] # Curl 192,168 . 88,101 / index.html Content
 102 html 
[root @ bro - 1 ~] # Curl 192,168 . 88,101 / index.html Content
 103html 
[root @ bro - 1 ~] # Curl 192,168 . 88,101 / index.html Content
 102 html 
[root @ bro - 1 ~] # Curl 192,168 . 88,101 / index.html Content
 103 html 
[root @ bro - 1 ~] # Curl 192,168 . 88,101 / index.html Content
 102 html 
[root @ bro - 1 ~] # Curl 192,168 . 88,101 / index.html Content
 103 html

Nginx- load balancing deployment

Guess you like