Windows 下
本地域名解析操作步骤：
1.打开C:\WINDOWS\system32\drivers\etc目录
2.找到host文件，用记事本打开
3.添加“空间IP 域名”
如：本地添加 www.service3.com的域名解析
# localhost name resolution is handled within DNS itself. # 127.0.0.1 localhost # ::1 localhost 127.0.0.1 service1cn.com 127.0.0.1 service2en.com 127.0.0.1 service3.com
送两个小命令 win 下的
ipconfig /displaydns 查看DNS 缓存 ipconfig /flushdns 刷新DNS缓存
Apache 下
PHP&Apache配置多个域名解析的配置方法
apache是最流行的http服务器软件之一，其以快速、可靠（稳定）而著称，并且可通过简单的api扩展，perl/python解释器可被编译到服务器中，完全免费，并且源代码全部开放。如果有自己的服务器或者vps， 并且不想为了方便而购买昂贵的控制面板的话，那自己动手配置apache就成了一门必修课了。下面简单的介绍了如何通过设置apache的 http.conf文件，进行多个域名以及其相关的二级域名的绑定(假设我们要绑定的域名是weioct.com和weicot.com，二级域名是 service1.weicot.com，独立ip为127.0.0.1 举个栗子).
apache怎么绑定多个域名
打开http.conf
1，servername 127.0.0.1 修改成servername 127.0.0.1
2，#namevirtualhost * 修改成”namevirtualhost 127.0.0.1″
3，在文件最后面有虚拟主机格式，
#<virtualhost *> # serveradmin [email]admin@weicot.com[/email] # documentroot /www/httpd/html/weicot.com # servername www.weicot.com # errorlog logs/weicot.com-error_log # customlog logs/weicot.com-access_log common #</virtualhost>
简单的添加：
<VirtualHost *:80>
DocumentRoot "E:\XPP\htdocs\magento"
ServerName service1cn.com
ServerAlias service1cn.com
ErrorLog logs/shop.com-error_log
</VirtualHost>
<VirtualHost *:80>
DocumentRoot "E:\XPP\htdocs\magento"
ServerName service2en.com
ServerAlias service2en.com
ErrorLog logs/shop.com-error_log
</VirtualHost>
<VirtualHost *:80>
ServerAdmin ajing-tuzi
DocumentRoot "E:\XPP\htdocs\magento"
ServerName service3.com
ServerAlias service3.com
ErrorLog logs/shop.com-error_log
</VirtualHost>
日志文件的话也可以按照自己的路径添加。
apache如何添加二级域名
httpd.conf 中需要打开mod_rewrite功能（关于url重定向的具体说明，可以参照.htaccess使用方法总结），具体操作就是，在httpd.conf 的最后，添加以下内容：
rewriteengine on
rewritemap lowercase int:tolower
rewritemap vhost txt:/usr/local/etc/apache/vhost.map
rewritecond ${lowercase:%{server_name}} ^(.+)$
rewritecond ${vhost:%1} ^(/.*)$
rewriterule ^/(.*)$ %1/$1
其中的 /usr/local/etc/apache 是你的 apache 服务器配置文件所在路径，根据实际情况更改（例如在/etc/httpd/下面）。然后，在这个所在路径的目录下创建一个文件： vhost.map，内容为：
service1.weicot.com /usr/local/www/service1.weicot.com www.weicot.com /usr/local/www/weicot.com service3.weicot.com /usr/local/www/weicot.com/service3
最后，在网站根目录 /usr/local/www/下，创建对应目录就可以了。如果需要增加，修改或者删除域名，子域名，仅仅需要更改vhost.map文件，而不用重启apache进程
Magento 下
//由于Magento 在这篇文章不是重点 所以我会开一贴单独讲
<?php
/**
* Magento
*
* NOTICE OF LICENSE
*
* This source file is subject to the Open Software License (OSL 3.0)
* that is bundled with this package in the file LICENSE.txt.
* It is also available through the world-wide-web at this URL:
* http://opensource.org/licenses/osl-3.0.php
* If you did not receive a copy of the license and are unable to
* obtain it through the world-wide-web, please send an email
* to license@magento.com so we can send you a copy immediately.
*
* DISCLAIMER
*
* Do not edit or add to this file if you wish to upgrade Magento to newer
* versions in the future. If you wish to customize Magento for your
* needs please refer to http://www.magento.com for more information.
*
* @category Mage
* @package Mage
* @copyright Copyright (c) 2006-2015 X.commerce, Inc. (http://www.magento.com)
* @license http://opensource.org/licenses/osl-3.0.php Open Software License (OSL 3.0)
*/
if (version_compare(phpversion(), '5.3.0', '<')===true) {
echo '<div style="font:12px/1.35em arial, helvetica, sans-serif;">
<div style="margin:0 0 25px 0; border-bottom:1px solid #ccc;">
<h3 style="margin:0; font-size:1.7em; font-weight:normal; text-transform:none; text-align:left; color:#2f2f2f;">
Whoops, it looks like you have an invalid PHP version.</h3></div><p>Magento supports PHP 5.3.0 or newer.
<a href="http://www.magentocommerce.com/install" target="">Find out</a> how to install</a>
Magento using PHP-CGI as a work-around.</p></div>';
exit;
}
/**
* Error reporting
*/
error_reporting(E_ALL | E_STRICT);
/**
* Compilation includes configuration file
*/
define('MAGENTO_ROOT', getcwd());
$compilerConfig = MAGENTO_ROOT . '/includes/config.php';
if (file_exists($compilerConfig)) {
include $compilerConfig;
}
$mageFilename = MAGENTO_ROOT . '/app/Mage.php';
$maintenanceFile = 'maintenance.flag';
if (!file_exists($mageFilename)) {
if (is_dir('downloader')) {
header("Location: downloader");
} else {
echo $mageFilename." was not found";
}
exit;
}
if (file_exists($maintenanceFile)) {
include_once dirname(__FILE__) . '/errors/503.php';
exit;
}
require_once $mageFilename;
#Varien_Profiler::enable();
if (isset($_SERVER['MAGE_IS_DEVELOPER_MODE'])) {
Mage::setIsDeveloperMode(true);
}
#ini_set('display_errors', 1);
umask(0);
/* Store or website code */
$mageRunCode = isset($_SERVER['MAGE_RUN_CODE']) ? $_SERVER['MAGE_RUN_CODE'] : '';
/* Run store or run website */
$mageRunType = isset($_SERVER['MAGE_RUN_TYPE']) ? $_SERVER['MAGE_RUN_TYPE'] : 'store';
//Mage::run($mageRunCode, $mageRunType);
switch($_SERVER['HTTP_HOST']){
case 'service1cn.com':
Mage::run('cn');
break;
case 'service2en.com':
Mage::run('cn');
break;
case 'service3.com':
Mage::run('main');
break;
default:
Mage::run();
break;
}
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