在ubuntu14.04 LTS下当完成lamp的安装后如何添加多个虚拟主机

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　　当我们安装好lamp的环境后，我们通常是使用localhost进行本地地址的访问，然而，当我们在实验的环境中，需要配置多个域名，进行不同的访问时，比如说，一个localhost和一个test.cn两个主机时，增加一个网站test.cn做实验时，这是我们就要用到虚拟主机了。

　　

　　在这里我用到的php环境是lamp-server,操作系统为ubuntu 14.04 LTS。#号为注释的内容
　　

• 　　在/etc/hosts下里添加这个127.0.0.1 test.cn
  
  127.0.0.1    localhost
  127.0.0.1   test.cn    #添加自己需要的域名
  # The following lines are desirable for IPv6 capable hosts
  ::1     ip6-localhost ip6-loopback
  fe00::0 ip6-localnet
  ff00::0 ip6-mcastprefix
  ff02::1 ip6-allnodes
  ff02::2 ip6-allrouters
  
• 　　xc@wen:cat /etc/apache2/sites-enabled/000-default.conf #查看配置文件
  <VirtualHost *:80>
      # The ServerName directive sets the request scheme, hostname and port that
      # the server uses to identify itself. This is used when creating
      # redirection URLs. In the context of virtual hosts, the ServerName
      # specifies what hostname must appear in the request's Host: header to
      # match this virtual host. For the default virtual host (this file) this
      # value is not decisive as it is used as a last resort host regardless.
      # However, you must set it for any further virtual host explicitly.
      #ServerName www.example.com
  
      ServerAdmin webmaster@localhost
      DocumentRoot /var/www/html
  
      # Available loglevels: trace8, ..., trace1, debug, info, notice, warn,
      # error, crit, alert, emerg.
      # It is also possible to configure the loglevel for particular
      # modules, e.g.
      #LogLevel info ssl:warn
  
      ErrorLog ${APACHE_LOG_DIR}/error.log
      CustomLog ${APACHE_LOG_DIR}/access.log combined
  
      # For most configuration files from conf-available/, which are
      # enabled or disabled at a global level, it is possible to
      # include a line for only one particular virtual host. For example the
      # following line enables the CGI configuration for this host only
      # after it has been globally disabled with "a2disconf".
      #Include conf-available/serve-cgi-bin.conf
  </VirtualHost>
  
  
  
• 　　修改上面的文件内的配置，sudo gedit /etc/apache2/sites-enabled/000-default.conf 配置虚拟主机，复制和localhost的配置并去掉相关注释
  xc@wen:sudo gedit /etc/apache2/sites-enabled/ 000-default.conf #修改虚拟主机的配置文件
  <VirtualHost *:80>
      # The ServerName directive sets the request scheme, hostname and port that
      # the server uses to identify itself. This is used when creating
      # redirection URLs. In the context of virtual hosts, the ServerName
      # specifies what hostname must appear in the request's Host: header to
      # match this virtual host. For the default virtual host (this file) this
      # value is not decisive as it is used as a last resort host regardless.
      # However, you must set it for any further virtual host explicitly.
      ServerName localhost    #开启localhost
  
      ServerAdmin webmaster@localhost
      DocumentRoot /var/www/html
  
      # Available loglevels: trace8, ..., trace1, debug, info, notice, warn,
      # error, crit, alert, emerg.
      # It is also possible to configure the loglevel for particular
      # modules, e.g.
      #LogLevel info ssl:warn
  
      ErrorLog ${APACHE_LOG_DIR}/error.log
      CustomLog ${APACHE_LOG_DIR}/access.log combined
  
      # For most configuration files from conf-available/, which are
      # enabled or disabled at a global level, it is possible to
      # include a line for only one particular virtual host. For example the
      # following line enables the CGI configuration for this host only
      # after it has been globally disabled with "a2disconf".
      #Include conf-available/serve-cgi-bin.conf
  </VirtualHost>
  　　#这里为新添加的虚拟主机，主机名为test.cn
  <VirtualHost *:80>
      ServerAdmin test.cn     #这里定义管理员的邮箱
  
  　　    ServerName test.cn      #添加自己定义的域名
      DocumentRoot /var/www/test   #添加自己域名所对应的目录
      ErrorLog ${APACHE_LOG_DIR}/error.log
      CustomLog ${APACHE_LOG_DIR}/access.log combined
  </VirtualHost>
  　　
  
  
• 　　重启apache服务
  sudo service apache2 restart
  　　
  
  
• 　　打开浏览器，输入test.cn即可以用这个域名访问自己定义的文件了。
  　　
  
  　　
  
  

　　注意：在这个配置的过程中，最主要的就是找到虚拟主机的配置文件了，在utubtu LTS下是放在，/etc/apache2/sites-enabled/000-default.conf，打开即可