CDN加速的实现（二）varnish实现多个后端的负载均衡以及图形化管理

迷南。 2021-12-04 02:37 205阅读 0赞

## 1.实验环境配置 ##

<table> 
 <thead> 
  <tr> 
   <th>主机</th> 
   <th>用途</th> 
  </tr> 
 </thead> 
 <tbody> 
  <tr> 
   <td>物理机：172.25.16.250</td> 
   <td>测试端/客户端</td> 
  </tr> 
  <tr> 
   <td>server1：172.25.16.1</td> 
   <td>varnish服务端</td> 
  </tr> 
  <tr> 
   <td>server2：172.25.16.2</td> 
   <td>后台服务器</td> 
  </tr> 
  <tr> 
   <td>server3：172.25.16.3</td> 
   <td>后台服务器</td> 
  </tr> 
 </tbody> 
</table>

为server3安装httpd服务并编写测试内容

yum install httpd -y
    systemclt start httpd
    vim /var/www/html/index.html
    
    curl localhost

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NDg4OTYxNg_size_16_color_FFFFFF_t_70]

## 2.配置多个不同域名站点的后端服务器 ##

server1:

vim /etc/varnish/default.vcl
    systemclt restart varnish

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NDg4OTYxNg_size_16_color_FFFFFF_t_70 1]  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NDg4OTYxNg_size_16_color_FFFFFF_t_70 2]  
物理机：

添加解析
    vim /etc/hosts

![在这里插入图片描述][20190719155511377.png]

测试：  
在物理机上分别访问 [www.westos.org和bbs.westos.org][www.westos.org_bbs.westos.org]  
![在这里插入图片描述][20190719155456908.png]

## 3.varnish实现负载均衡 ##

server1：

vim /etc/varnish/default.vcl
    systemctl restart varnish

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NDg4OTYxNg_size_16_color_FFFFFF_t_70 3]![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NDg4OTYxNg_size_16_color_FFFFFF_t_70 4]  
测试：  
[在物理机上分别访问www.westos.org和bbs.westos.org][www.westos.org_bbs.westos.org 1]  
发现在访问www.westos.org时出现轮询bbs.westos.org不变  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NDg4OTYxNg_size_16_color_FFFFFF_t_70 5]

## 4.varnish虚拟主机（一个主机包含多个解析） ##

server3：  
配置虚拟主机

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NDg4OTYxNg_size_16_color_FFFFFF_t_70 6]  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NDg4OTYxNg_size_16_color_FFFFFF_t_70 7]  
测试：  
[在物理机上分别访问www.westos.org和bbs.westos.org][www.westos.org_bbs.westos.org 1]  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NDg4OTYxNg_size_16_color_FFFFFF_t_70 8]

## 5.搭建CDS缓存系统 ##

server1:  
下载bansy.zip比ing解压到/var/www/html下

yum install unzip php httpd
    unzip bansys.zip -d /var/www/html
    cd /var/www/html/bansys
    mv * ../
    cd ..
    vim config.php

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NDg4OTYxNg_size_16_color_FFFFFF_t_70 9]  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NDg4OTYxNg_size_16_color_FFFFFF_t_70 10]  
修改httpd端口为8080

vim /erc/httpd/conf/httpd.conf
    systemctl restart httpd

![在这里插入图片描述][20190719173056604.png]

vim /etc/varnish/default.vcl
    systemctl restart varnish

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NDg4OTYxNg_size_16_color_FFFFFF_t_70 11]![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NDg4OTYxNg_size_16_color_FFFFFF_t_70 12]  
测试：  
打开浏览器，输入172.25.16.1：8080

推送模式选择为http，输入/index.html清除/index.html下的缓存  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NDg4OTYxNg_size_16_color_FFFFFF_t_70 13]![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NDg4OTYxNg_size_16_color_FFFFFF_t_70 14]  
选择http，输入.\*清除全部缓存  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NDg4OTYxNg_size_16_color_FFFFFF_t_70 15]  
![在这里插入图片描述][20190719192633165.png]

[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NDg4OTYxNg_size_16_color_FFFFFF_t_70]: /images/20211203/0b5d8111f5db4251922875efbbdff081.png
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[20190719155511377.png]: /images/20211203/be162899dcb846cb8ba355f516e2a230.png
[www.westos.org_bbs.westos.org]: http://www.westos.xn--orgbbs-k76j.westos.org
[20190719155456908.png]: /images/20211203/135a3afeddcc483493d48ca1cae85d1a.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NDg4OTYxNg_size_16_color_FFFFFF_t_70 3]: https://img-blog.csdnimg.cn/20190719161341296.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NDg4OTYxNg==,size_16,color_FFFFFF,t_70
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NDg4OTYxNg_size_16_color_FFFFFF_t_70 4]: /images/20211203/1c4131cd74f641f5b9fd2a030502a853.png
[www.westos.org_bbs.westos.org 1]: http://xn--www-u28d65pmg044amq7agbv9vd1q0g3sza.westos.xn--orgbbs-k76j.westos.org
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NDg4OTYxNg_size_16_color_FFFFFF_t_70 5]: /images/20211203/36ae5ac32f704984a0780b6bdbf1d2f0.png
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[20190719192633165.png]: /images/20211203/fc871143f7e947a0bd111e47dc0e78b8.png