Subdomain hosting on Apache

I am beginne开发者_Python百科r in web server related stuff.

I have a server already working with the domain www.example.com

I want to also host test.example.com on the server which would also have the same behavior as www.example.com. That is, all the requests to test.example.com should be mapped to a start.php file.

Also the domain name should remain test.example.com, i.e. I don't want to redirect requests from test.example.com to www.example.com.

How do I achieve this?

Your solution is a name-based virtual host.

Specifically, you want to set up a virtual host to direct requests to a specific host (in this case, identified by a subdomain) to a particular directory. Thereafter, just rewrite requests to start.php.

<VirtualHost *>
ServerName mysub.domain.tld
DocumentRoot /www/vhosts/http/mysub.domain.tld

RewriteEngine On
RewriteRule ^(.*)$ start.php [L]
</VirtualHost>

Place this in your Apache configuration file or into a separate file in the sites-available directory, enabling it via a2ensite. Make sure this one is loaded before the one for domain.tld, or else Apache will recognize the path to domain.tld and forget about mysub.domain.tld.

Restart Apache, and you should be good to go.