base虚拟机的安装 和 varnish(rhel6.5)

base安装(操作步骤如下):
  ifconfig
  hostname server1
  vi /etc/sysconfig/network 
  vi /etc/yum.repos.d/rhel-source.repo    ##配置yum源
  yum repolist     ##yum的更新
  yum install -y vim lftp
  yum install -y openssh-clients
  cd /etc/udev/
  ls
  cd rules.d/
  ls
  rm -fr 70-persistent-net.rules 
  ip addr
  ls
  cd/etc/sysconfig/network-scripts/
  ls
  vim ifcfg-eth0 
  vim /etc/hosts
  cd /etc/ssh/
  ls
  rm -fr ssh_host_*    ##删除ssh所给的钥匙(如果ssh连接出现问题,就在这删除再次连接)
  ls
  iptables -L
  cd /etc/sysconfig/
  ls
  rm -fr iptables
  ls
  pwd
  chkconfig iptables off   ##关闭火墙
  vim /etc/sysconfig/selinux   ##在文件中将selinux状态改为disabled



vm1(varnish轮询主机)
     yum install -y *

(安装varnish.x86_64 0:3.0.5-1.el6 varnish-libs.x86_64 0:3.0.5-1.el6这两个安装包下载安装varnish )
     cd /etc/varnish/
     vim /etc/sysconfig/varnish (设置varnish默认端口是80VARNISH_LISTEN_PORT=80)
     /etc/init.d/varnish reload
     vim /etc/varnish/default.vcl  ##配置varnish
     /etc/init.d/varnish start
     /etc/init.d/varnish reload    


-------------------------------------------------------------------------------------------
###varnish的配置

[root@server1 varnish]# cat default.vcl 

###定义多个不同域名站点的后端服务器
backend web1 {
  .host = "172.25.78.2";   ###配置一个后端服务器
  .port = "80";
}
backend web2 {
  .host = "172.25.78.3";
  .port = "80";
}

director lb round-robin {  #把多个后端聚合为一个组,并检测后端健康状况
{.backend = web1;}
{.backend = web2;}
}

base虚拟机的安装 和 varnish(rhel6.5)

#当访问 www.westos.org 域名时从 web1 上取数据,访问 bbs.westos.org 域名时到 web2 取数据,访问其他页面报错。
sub vcl_recv {
if (req.http.host ~ "^(www.)?westos.org") {
set req.http.host = "www.westos.org";
set req.backend = lb;
return (pass);     ##通常为了方便测试,不进行缓存
} elsif (req.http.host ~ "^bbs.westos.org") {
set req.backend = web1;
} else {error 404 "westos cache";
}
}


###查看缓存命中情况
sub vcl_deliver {
if (obj.hits > 0) {
set resp.http.X-Cache = "HIT from westos cache";
}
else {
set resp.http.X-Cache = "MISS from westos cache";
}
return (deliver);
}

###测试缓存命中
[root@foundation78 ~]# curl -I www.westos.org
HTTP/1.1 200 OK
Server: Apache/2.2.15 (Red Hat)
Last-Modified: Wed, 19 Jul 2017 14:21:56 GMT
ETag: "9f614-20-554ac5ab83cc8"
Content-Type: text/html; charset=UTF-8
Content-Length: 32
Accept-Ranges: bytes
Date: Thu, 20 Jul 2017 03:22:27 GMT
X-Varnish: 1895199082
Age: 0
Via: 1.1 varnish
Connection: keep-alive
X-Cache: MISS from westos cache       #未命中

[root@foundation78 ~]# curl -I www.westos.org
HTTP/1.1 200 OK
Server: Apache/2.2.15 (Red Hat)
Last-Modified: Wed, 19 Jul 2017 14:21:56 GMT
ETag: "9f614-20-554ac5ab83cc8"
Content-Type: text/html; charset=UTF-8
Content-Length: 32
Accept-Ranges: bytes
Date: Thu, 20 Jul 2017 03:22:29 GMT
X-Varnish: 1895199083 1895199082
Age: 2
Via: 1.1 varnish
Connection: keep-alive
X-Cache: HIT from westos cache    ##命中

----------------------------------------------------------------------------------------------------------------------

### 通过 varnishadm 手动清除缓存
# varnishadm ban.url .*$       #清除所有
# varnishadm ban.url /index.html  #清除 index.html 页面缓存
# varnishadm ban.url /admin/$     #清除 admin 目录缓存



在vm2上(充当web1):

vim /etc/httpd/conf/httpd.conf 

NameVirtualHost *:80(打开此端口)
<VirtualHost *:80>
    DocumentRoot /var/www/html
    ServerName server2

</VirtualHost>

<VirtualHost *:80>
    DocumentRoot /www/bbs
    ServerName bbs.westos.org
</VirtualHost>

<VirtualHost *:80>
    DocumentRoot /www/westos
    ServerName www.westos.org
</VirtualHost>

     yum install -y httpd
     /etc/init.d/httpd start
     cd /var/www/html/
     ls
     vim index.html
     vim /etc/httpd/conf/httpd.conf
     mkdir /www/bbs -p
     mkdir /www/westos
     cd /www/bbs/
     vim index.html
     cd /www/westos/
     vim index.html
     /etc/init.d/httpd restart
     vim /etc/hosts (给www.westos.org和bbs.westos.org作解析)

vm3(充当web2):

    yum install -y httpd
    /etc/init.d/httpd start
    cd /var/www/html/
    vim index.html

在物理机测试:
    vim /etc/hosts  (作解析)
    curl 172.25.78.1
    curl bbs.westos.org
    curl www.westos.org
    curl www.westos.org/index.html

------------------------------------------------------------------------------------------------------------------

###varnish cdn 推送平台####
CDN推送

1.vim /etc/httpd/conf/httpd.conf 
因为做varnish时候把监听端口改成了80,所以做cdn推送时候要更改http的监听端口为8080

2.yum install unzip.x86_64 -y

3.unzip bansys.zip -d /var/www/html/  
解压bansys到html目录下,可以直接网页推送(cd /var/www/html/bansys/ mv * ..  rm -fr bansys/)

4.yum install -y php  
因为cdn里面的文件是使用php编写的,需要下载php编译器(需要安装 php 支持)

5./etc/init.d/varnish start
  /etc/init.d/httpd start

6.vim /var/www/html/config.php(配置文件更改如下)
*****************************************
*<?php
*   $var_group1 = array(
*   'host' =>array('172.25.78.1'),
*   'port' => '80',
*);
*
*//varnish 群组定义
*//对主机列表进行绑定
*$VAR_CLUSTER = array(
*   'www.westos.org' =>$var_group1,
*);
*
*//varnish 版本//2.x 和 3.x 推送命令不一样
*$VAR_VERSION = "3";
*?>
******************************************


#bansys 有两种工作模式,分别是:telnet 和 http 模式。
#telnet 模式需要关闭 varnish 服务管理端口的验证,注释掉/etc/sysconfig/varnish 文件中的 “ -S ${VARNISH_SECRET_FILE}”这行,重启 varnish 服务即可。
#如果是 http 模式需要对 varnish 做以下设置:

# vim /etc/varnish/default.vcl
acl westos {
        #设置访问控制
    "127.0.0.1";
    "192.168.0.0"/24;
}
sub vcl_recv {
    if (req.request == "BAN"){
        if (!client.ip ~ westos) {
           error 405 "Notallowed.";
    }
    ban("req.url ~ " +req.url);
    error 200 "ban added";
      }
}
# service varnish reload


附件:http://down.51cto.com/data/2366874

本文转自AELY木博客51CTO博客,原文链接http://blog.51cto.com/12768057/1949519如需转载请自行联系原作者


AELY木

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