    location / {
        root   /usr/share/nginx/html/browserlb;
        index  index.html index.htm;
       if ($http_user_agent ~* "MSIE")
       {
          proxy_pass http://192.168.11.180;
       }
       if ($http_user_agent ~* "Chrome")
       {
          proxy_pass http://192.168.11.180;
       }
    }

3) 在工作机1和工作机2上测试,直接访问出现的结果是不一样的

4) 重新启动调度器nginx

5) 测试,上门是chrome浏览器,转发到181,第二个转发到180了,

编辑

根据目录名称配置

方案

调度服务器上做一个pathlb.yc.com的域名解析到192.168.11.179
配置该调度器上的虚拟主机进行动静分离,在该虚拟主机的的目录下创建image目录,并将day.jpg文件拷贝到此目录.
修改工作机1下的配置文件index.html.文件中需要访问的图片放到调度服务器上.

1) 在pathlb虚拟主机上的配置文件/etc/nginx/conf.d/pathlb.conf

 location /dynamic {
        proxy_set_header Host $host;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_pass http://192.168.11.180/dynamic;
   }
   location /static {
        proxy_set_header Host $host;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_pass http://192.168.11.181/static;
   }

2) 重新启动服务器 systemctl start nginx

3) 配置工作机1,在默认的根目录下面增加文件dymamic目录, index.php

===this is from dynamic
<?php
 phpinfo();
?>
======= for staic testing ===
<img src='/static/day.jpg' />

4) 在工作机2(11.181)下增加目录static,并且把day.jpg拷贝进去

5) 直接访问pathlb.yc.com, 可以看到php和图片全部成功

编辑

调度器log日志

192.168.10.8 - - [07/Mar/2021:16:31:53 +0800] "GET /dynamic/index.php?=PHPE9568F34-D428-11d2-A769-00AA001ACF42 HTTP/1.1" 200 2536 "http://pathlb.yc.com/dynamic/index.php" "Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/88.0.4324.190 Safari/537.36" "-"
192.168.10.8 - - [07/Mar/2021:16:31:53 +0800] "GET /dynamic/index.php?=PHPE9568F35-D428-11d2-A769-00AA001ACF42 HTTP/1.1" 200 2158 "http://pathlb.yc.com/dynamic/index.php" "Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/88.0.4324.190 Safari/537.36" "-"
192.168.10.8 - - [07/Mar/2021:16:31:53 +0800] "GET /static/day.jpg HTTP/1.1" 200 961243 "http://pathlb.yc.com/dynamic/index.php" "Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/88.0.4324.190 Safari/537.36" "-

工作机1上的日志

192.168.11.179 - - [07/Mar/2021:16:31:53 +0800] "GET /dynamic/index.php?=PHPE9568F35-D428-11d2-A769-00AA001ACF42 HTTP/1.0" 200 2146 "http://pathlb.yc.com/dynamic/index.php" "Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/88.0.4324.190 Safari/537.36" "192.168.10.8"

工作机2上的日志

192.168.11.179 - - [07/Mar/2021:16:31:53 +0800] "GET /static/day.jpg HTTP/1.0" 200 961243 "http://pathlb.yc.com/dynamic/index.php" "Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/88.0.4324.190 Safari/537.36" "192.168.10.8"

根据后缀名称配置

方案

调度服务器上做一个extlb.yc.com的域名解析到192.168.11.179
配置该调度器上的虚拟主机进行动静分离,在该虚拟主机的的目录下创建image目录,并将day.jpg文件拷贝到此目录.
修改工作机1下的配置文件index.html.文件中需要访问的图片放到调度服务器上.

extlb.yc.com的文件配置如下,主要是对图片文件在本地读取,其他数据到工作机1上去读取.

192.168.11.180的配置文件,主要修改的地方在 6-10,17-18行

第一部分的改动,将客户机器的IP带到工作机

将调度机器的IP带到工作机

[root@centos7v3-nginx extlb]# nl /etc/nginx/conf.d/extlb.conf
     1  server {
     2      listen       80;
     3      server_name  extlb.yc.com;

     4      #charset koi8-r;
     5      #access_log  /var/log/nginx/host.access.log  main;
     6      location / {
     7          proxy_set_header Host $host;
     8          proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
     9          proxy_pass http://192.168.11.180;
    10      }

    11      #error_page  404              /404.html;

    12      # redirect server error pages to the static page /50x.html
    13      #
    14      error_page   500 502 503 504  /50x.html;
    15      location = /50x.html {
    16          root   /usr/share/nginx/html;
    17      }

    18       location ~ .*.(jpg|png|gif)$ {
    19          root   /usr/share/nginx/html/extlb;
    20       }
    21      # proxy the PHP scripts to Apache listening on 127.0.0.1:80
    22      #
    23      #location ~ \.php$ {
    24      #    proxy_pass   http://127.0.0.1;
    25      #}

    26      # pass the PHP scripts to FastCGI server listening on 127.0.0.1:9000
    27      #
    28      #location ~ \.php$ {
    29      #    root           html;
    30      #    fastcgi_pass   127.0.0.1:9000;
    31      #    fastcgi_index  index.php;
    32      #    fastcgi_param  SCRIPT_FILENAME  /scripts$fastcgi_script_name;
    33      #    include        fastcgi_params;
    34      #}

    35      # deny access to .htaccess files, if Apache's document root
    36      # concurs with nginx's one
    37      #
    38      #location ~ /\.ht {
    39      #    deny  all;
    40      #}
    41  }

重新启动nginx

再工作机1,11.180上,修改index.html

注意在本机下不需要创建image目录,图片的调度机会在它本机上读取.

<html>
        this is 180
        <img src='/image/day.jpg' />
</html>

工作机1上的配置文件不需要修改.

server {
    listen       80;
    server_name  localhost;

    #charset koi8-r;
    #access_log  /var/log/nginx/host.access.log  main;

    location / {
        root   /usr/share/nginx/html;
        index  index.html index.htm;
    }

    #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   /usr/share/nginx/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;
    #}
}

我们访问域名extlb.yc.com.看实际效果,图片已经正常访问.

编辑

检查结果

可以看到180服务器上的access已经看到有请求访问过来,并且看到实际的客户机IP,192.168.10.8

192.168.11.179 - - [07/Mar/2021:14:31:03 +0800] "GET / HTTP/1.0" 304 0 "-" "Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/88.0.4324.190 Safari/537.36" "192.168.10.8"

再看调度器上的access日志,我们发现图片在本地读取,没有转发

KHTML, like Gecko) Chrome/88.0.4324.190 Safari/537.36" "-"
192.168.10.8 - - [07/Mar/2021:14:31:03 +0800] "GET / HTTP/1.1" 304 0 "-" "Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/88.0.4324.190 Safari/537.36" "-"
192.168.10.8 - - [07/Mar/2021:14:31:03 +0800] "GET /image/day.jpg HTTP/1.1" 200 10220 "http://extlb.yc.com/" "Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/88.0.4324.190 Safari/537.36" "-"

伪静态方法

一般是讲动态的请求编程静态文件的内容,使得网络爬虫比较喜欢.这个就是那个了rewrite模块,

伪静态的方法多主机可现在.htaccess中.

if (!-e $request_filename) { rewrite ^/(.*)/(.*)/(.*)/(.*)/(.*)/(.*)/(.*)\.html /index.php?m=$1&c=$2&a=$3&$4=$5&$6=$7 last; break; }

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nginx动静分离以及伪静态

动静分离的说明

测试环境

动静分离的配置(请求分离)

据客户端类型进行分离

方案

根据目录名称配置

方案

根据后缀名称配置

检查结果

伪静态方法

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