nginx 负载

准备服务器、域名、nginx程序

服务器A:47.104.238.XX

服务器B:39.105.126.XX

域名：fz213.xxx.top

nginx下载地址：http://nginx.org/en/download.html

实现思路：域名的A记录指向服务器A，在服务器A上部署nginx，然后访问域名，重新跳转A或B服务器

1、配置nginx.conf文件

配置的主要思路：访问域名时，通过域名解析的A记录，找到对应的服务器，nginx此时捕获，走nginx配置文件，通过配置中的端口监控匹配对应的规则，转发到对应的服务器及端口

a、在server节点上面增加upstream

8032、8016分别对应的是网站的端口

upstream iis.temp.fz.2021{
server 39.105.126.xx:8032 weight=1;
server 47.104.238.xx:8016 weight=1;
}

b、在server中配置监听端口，服务器名称

由于80端口冲突，这里监听8017端口

 listen       8017;
 server_name  fz213.xxx.top;

c、路由中配置upstream名称

 location / { 
             proxy_pass http://iis.temp.fz.2021;
          }

完整配置：

#user  nobody;
worker_processes  1;

#error_log  logs/error.log;
#error_log  logs/error.log  notice;
#error_log  logs/error.log  info;

#pid        logs/nginx.pid;


events {
    worker_connections  1024;
}


http {
    include       mime.types;
    default_type  application/octet-stream;

    #log_format  main  '$remote_addr - $remote_user [$time_local] "$request" '
    #                  '$status $body_bytes_sent "$http_referer" '
    #                  '"$http_user_agent" "$http_x_forwarded_for"';

    #access_log  logs/access.log  main;

    sendfile        on;
    #tcp_nopush     on;

    #keepalive_timeout  0;
    keepalive_timeout  65;

    #gzip  on;
    upstream iis.temp.fz.2021{ 
        server 39.105.126.xx:8032 weight=1;
        server 47.104.238.xx:8016 weight=1;
    }
    server {
        listen       8017;
        server_name  fz213.xxx.top;

        #charset koi8-r;

        #access_log  logs/host.access.log  main;

        location / {
            #root   html;
            #index  index.html index.htm;
            proxy_pass http://iis.temp.fz.2021;
        }

        #error_page  404              /404.html;

        # redirect server error pages to the static page /50x.html
        #
        error_page   500 502 503 504  /50x.html;
        location = /50x.html {
            root   html;
        }

        # proxy the PHP scripts to Apache listening on 127.0.0.1:80
        #
        #location ~ \.php$ {
        #    proxy_pass   http://127.0.0.1;
        #}

        # pass the PHP scripts to FastCGI server listening on 127.0.0.1:9000
        #
        #location ~ \.php$ {
        #    root           html;
        #    fastcgi_pass   127.0.0.1:9000;
        #    fastcgi_index  index.php;
        #    fastcgi_param  SCRIPT_FILENAME  /scripts$fastcgi_script_name;
        #    include        fastcgi_params;
        #}

        # deny access to .htaccess files, if Apache's document root
        # concurs with nginx's one
        #
        #location ~ /\.ht {
        #    deny  all;
        #}
    }


    # another virtual host using mix of IP-, name-, and port-based configuration
    #
    #server {
    #    listen       8000;
    #    listen       somename:8080;
    #    server_name  somename  alias  another.alias;

    #    location / {
    #        root   html;
    #        index  index.html index.htm;
    #    }
    #}


    # HTTPS server
    #
    #server {
    #    listen       443 ssl;
    #    server_name  localhost;

    #    ssl_certificate      cert.pem;
    #    ssl_certificate_key  cert.key;

    #    ssl_session_cache    shared:SSL:1m;
    #    ssl_session_timeout  5m;

    #    ssl_ciphers  HIGH:!aNULL:!MD5;
    #    ssl_prefer_server_ciphers  on;

    #    location / {
    #        root   html;
    #        index  index.html index.htm;
    #    }
    #}

}

2、启动nginx

3、访问地址即可

此时由于监控的是8017端口，所以域名后面需要加上8017

即：fz213.xxx.top:8017

 去掉端口的访问方法：https://www.cnblogs.com/xiao-sheng/p/15415377.html