一个空间绑多域名，.htaccess方法

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Can I host multiple domains on one account?

Yes, using our Domain Alias service.

A Domain Alias allows additional domain names to all lead to same account. There are several ways you can use this service:


Multiple Domains, One Website

For example, if you are hosting your domain name "original.com" with us and added a Domain Alias for "alias.com", then http://www.original.com and http://www.alias.com would take a visitor to the exact same pages of your original.com website. http://original.com/somefile.html would bring someone to the exact same page as http://alias.com/somefile.html.



Multiple Domains, Multiple Websites

Using this method, you can host an additional website within your account for each Domain Alias you add. This is a custom configuration requiring a couple extra steps.

After adding the Domain Alias in OnSite, then place an .htaccess file in /htdocs/www of the following example format:


RewriteEngine On
RewriteCond %{HTTP_HOST} alias.com$ [NC]
RewriteCond %{REQUEST_URI} !^/alias/.*$
RewriteRule ^(.*)$ /alias/$1


Then, upload your HTML files original.com to /htdocs/www/ and your HTML files for alias.com to /htdocs/www/alias

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If you want a Domain Alias to redirect and put the correct hostname in
the URL bar of the browser, you can use mod_rewrite. If you are hosting
original.com and have a domain alias of alias.com and you want all
requests for alias.com urls to be redirected back to original.com urls,
then you would put this in an .htaccess file in any directory where you
want this redirection to happen:

RewriteEngine on
RewriteCond %{HTTP_HOST} alias.com$ [NC]
RewriteRule ^(.*)$ http://www.original.com/$1 [R]

The rule will affect all directories below the one where you put this
.htaccess file. So a request for http://www.alias.com/docs/services.html
will be redirected to http://www.original.com/docs/services.html as
well.

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If you want a Domain Alias to serve pages only from a certain
subdirectory, you can use this mod_rewrite rule in an .htaccess file in
your /htdocs/www directory of your primary hosting account:

RewriteEngine on
RewriteCond %{HTTP_HOST} alias.com$ [NC]
RewriteCond %{REQUEST_URI} !^/subdir/.*$
RewriteRule ^(.*)$ http://www.original.com/subdir/$1 [R]

Then when requests for the aliased domain come in, the browser will be
redirected to find files in the subdirectory, while still keeping the
domain name of the domain alias in the browser address bar. Files for
the domain alias in the above example would be served from
/htdocs/www/subdir/

[topvip]

If you have a Domain Alias that you'd like to point to a specific
directory of your orginal domain, and you'd like to maintain the domain
name of the Domain Alias in your URL, use the suggested mod_rewrite rule
in the technote posted above (dated 10/07/2002).

Replace line 4 of that rule with the following:

RewriteRule ^(.*)$ http://www.alias.com/subdir/$1 [R]

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If abc.com is your original domain and xyz.com is the domain alias, and
you want people going to abc.com to see one site and people going to
xyz.com to see a different site, and you want the hostname to stay as
the user typed it, make a directory called xyz under /htdocs/www and put
the xyz.com website in it. Then use mod_rewrite in an .htaccess file in
/htdocs/www

RewriteEngine On
RewriteCond %{HTTP_HOST} xyz.com$ [NC]
RewriteCond %{REQUEST_URI} !^/xyz/.*$
RewriteRule ^(.*)$ /xyz/$1

Now when people go to abc.com they will see the site in /htdocs/www.
When people go to xyz.com, they will be served pages from
/htdocs/www/xyz and the URL in their browser will not change the
hostname or show them the /xyz/.