目标：

1. 建立DNS服务器，同时为linux.com, php.net, apache.org三个域提供解析；要求，每个域内的www主机均指向本机唯一的IP；
2. 建立httpd服务器，分别为www.linux.com, www.php.net, www.apache.org 各提供一个虚拟主机，位置分别为/www/linux,/www/php,/www/apache；
3. 每个虚拟主机的要使用各自的错误日志和访问日志，日志文件名称以虚拟主机名称打头；三个虚拟主机的日志文件都位于/www/logs目录中；
4. www.linux.com虚拟主机仅允许来自172.16.0.0/16（除了172.16.100.0/24）的主机访问，且支持基于SSL的访问；
5. www.php.net虚拟主机仅允许提供了帐号和密码的请求者访问；
6. 通过http://www.apache/mail可以访问/web/mail目录中的网页，而且此目录允许执行CGI脚本(请测试通过)

我们开始吧！我的环境是redhat 5.8，已安装自带的bind97,bind97_lib,bind97_utils,httpd2.2.3，

1.建立DNS服务器。建立/etc/named.conf,并为之建立各自区域文件,启动named服务,测试，并把测试机（我用的是我的xp）的DNS改为刚建立的DNS的地址

   1:  /etc/named.conf :

   2:   

   3:  options {

   4:          directory "/var/named";

   5:  };

   6:  zone "linux.com" IN {

   7:          type master;

   8:          file "linux.php.apache";

   9:  };

  10:  zone "php.net" IN {

  11:          type master;

  12:          file "linux.php.apache";

  13:  };

  14:  zone "apache.org" IN {

  15:          type master;

  16:          file "linux.php.apache";

  17:  };

  18:   

  19:  /var/named/linux.php.apache

  20:   

  21:   

  22:  $TTL 86400

  23:  @               IN      SOA     ns      admin   (   

  24:                                          001 

  25:                                          2H  

  26:                                          5M  

  27:                                          7D  

  28:                                          2H )

  29:                  IN      NS      ns  

  30:  ns              IN      A       172.16.1.1

  31:  www             IN      A       172.16.1.1

2.修改/etc/httpd/conf/httpd.conf,注释主服务器区域的文档目录栏，取消基于域名的虚拟主机选项，然后建立虚拟机主机.新建几个目录，与日志文件，更改权限

   1:  #DocumentRoot "/var/www/html"　　　　　 ##282行左右

   2:  NameVirtualHost *:80　　　　　　　　　　##973行左右取消注释

   3:  ##在最后建立三个虚拟主机

   4:  <VirtualHost *:80>

   5:          ServerName "www.linux.com"

   6:          DocumentRoot /www/linux

   7:          ErrorLog /www/logs/linux-error_log

   8:          CustomLog /www/logs/linux-access_log common

   9:  </VirtualHost>

  10:  <VirtualHost *:80>

  11:          ServerName "www.php.net"

  12:          DocumentRoot /www/php

  13:          ErrorLog /www/logs/php-error_log

  14:          CustomLog /www/logs/php-access_log common

  15:  </VirtualHost>

  16:  <VirtualHost *:80>

  17:          ServerName "www.apache.org"

  18:          DocumentRoot /www/apache

  19:          ErrorLog /www/logs/apache-error_log

  20:          CustomLog /www/logs/apache-access_log common

  21:  </VirtualHost>

  22:   

  23:  mkdir /www/{linux,php,apache/logs}; ##建立目录

  24:  touch /www/logs/{linux-error_log,linux-access_log,php-error_log,php-access_log,apache-access_log,apache-error_log};

  25:  echo "I am linux " >/www/linux/index.html;

  26:  echo "I am php " >/www/php/index.html;

  27:  echo "I am linux " >/www/apache/index.html;

  28:  chown apache:apache -R /www 

3.修改名字为www.linux.com虚拟主机的访问权限

   1:  <VirtualHost *:80>

   2:          ServerName "www.linux.com"

   3:          DocumentRoot /www/linux

   4:          ErrorLog /www/logs/linux-error_log

   5:          CustomLog /www/logs/linux-access_log common

   6:          <Directory "/www/linux">

   7:                  Order Allow,Deny

   8:                  Allow From 172.16.0.0/16

   9:                  Deny From 172.16.100.0/24

  10:          </Directory>

  11:  </VirtualHost>

4.为www.linux.com建立证书，方法见http://laoguang.blog.51cto.com/6013350/1035608

5.安装mod_ssl这个模块，基于ssl访问的https由它提供，修改它的配置文件/etc/httpd/conf.d/ssl.conf

   1:  yum -y install mod_ssl         ##已配好yum，自动安装

   2:   

   3:  /etc/httpd/conf.d/ssl.conf

   4:   

   5:  DocumentRoot "/www/linux"      　##86行加入这两行   

   6:  ServerName www.linux.com   

   7:  SSLCertificateFile /etc/httpd/conf.d/linux.crt        ##113行左右修改为SSL的证书的位置  (这是我建立证书的位置）   

   8:  SSLCertificateKeyFile /etc/httpd/conf.d/linux.key     ##120行左右修改为SSL的私钥的位置

6.为www.php.net 设定访问权限

   1:  <VirtualHost *:80>

   2:            ServerName "www.php.net"

   3:            DocumentRoot /www/php

   4:            ErrorLog /www/logs/php-error_log

   5:            CustomLog /www/logs/php-access_log common

   6:          <Directory /www/php>

   7:                  AllowOverride Authconfig

   8:                  options none

   9:                  Authtype basic

  10:                  Authname "Hi,I'm secreat"

  11:                  AuthUserFile /etc/httpd/conf.d/htpasswd

  12:                  Require valid-user

  13:          </Directory>

  14:    </VirtualHost>

   1:  htpasswd -c -m /etc/httpd/conf.d/htpasswd laoguang

   2:  New password: 

   3:  Re-type new password: 

   1:  <VirtualHost *:80>

   2:            ServerName "www.apache.org"

   3:            DocumentRoot /www/apache  

   4:            ErrorLog /www/logs/apache-error_log  

   5:            CustomLog /www/logs/apache-access_log common

   6:            alias /mail "/web/mail"

   7:            AddHandler cgi-script .cgi

   8:            <Directory /web/mail>

   9:                  Options execCGI

  10:            </Directory>

  11:    </VirtualHost>  

   1:  vim /www/apache/test.cgi

   2:   

   3:  #!/bin/bash

   4:  cat <<EOF

   5:  Content-Type: text/html

   6:   

   7:  <pre>

   8:  $(/bin/date)

   9:  my name is `id -nu`

  10:  my hostname $HOSTNAME

  11:  `/bin/date`

  12:  `echo $PATH`

  13:  </pre>

  14:  EOF

  15:   

  16:   

  17:  ##浏览器访问 www.apache.org/mail/test.cgi看是否能正常执行