Nginx 配置负载均衡

nginx负载均衡配置，主要是proxy_pass，upstream的使用。

注意问题，多台机器间session的共享问题。

不用session，用户cookie。或者用redis替代session。

三台服务器，一台nginx转发（10.0.0.1），两台服务器（10.0.0.2,10.0.0.3）。

nginx转发配置，

upstream balance.xxx.com
{
    server 10.0.0.2:80;
    server 10.0.0.3:80;
}

server
    {
        listen 80;
        server_name balance.xxx.com;

        location /
        {
            proxy_pass        http://balance.xxx.com;
            proxy_set_header   Host             $host;
            proxy_set_header   X-Real-IP        $remote_addr;
            proxy_set_header   X-Forwarded-For  $proxy_add_x_forwarded_for;
        }

        access_log  /home/wwwlogs/access.log;
}

服务器1

server
    {
        listen 80;
        #listen [::]:80 default_server ipv6only=on;
        server_name balance.xxx.com;
        index index.html index.htm index.php admin.php;
        root  /home/wwwroot/default/load;

        #error_page   404   /404.html;
        include enable-php-pathinfo.conf;

        location /nginx_status
        {
            stub_status on;
            access_log   off;
        }

        location ~ .*\.(gif|jpg|jpeg|png|bmp|swf)$
        {
            expires      30d;
        }

        location ~ .*\.(js|css)?$
        {
            expires      12h;
        }

        location ~ /\.
        {
            deny all;
        }

        location / {
            if (!-e $request_filename) {
                rewrite  ^(.*)$  /index.php?s=/$1  last;
            }
        }

        access_log  /home/wwwlogs/access.log;
}

服务器2

server
    {
        listen 80;
        #listen [::]:80 default_server ipv6only=on;
        server_name balance.xxx.com;
        index index.html index.htm index.php admin.php;
        root  /home/wwwroot/default/load;

        #error_page   404   /404.html;
        include enable-php-pathinfo.conf;

        location /nginx_status
        {
            stub_status on;
            access_log   off;
        }

        location ~ .*\.(gif|jpg|jpeg|png|bmp|swf)$
        {
            expires      30d;
        }

        location ~ .*\.(js|css)?$
        {
            expires      12h;
        }

        location ~ /\.
        {
            deny all;
        }

        location / {
            if (!-e $request_filename) {
                rewrite  ^(.*)$  /index.php?s=/$1  last;
            }
        }

        access_log  /home/wwwlogs/access.log;
}

配好之后，记得重启nginx。

原文地址：https://www.cnblogs.com/jiqing9006/p/10676085.html