<VirtualHost *:80>
ServerAdmin
kiss@kiss.com
DocumentRoot D:/www/www.a.net
ServerName
www.a.net
ServerAlias a.net
ServerAlias
www.a.net
ServerAlias a.net
ServerAlias
www.a.com
ServerAlias a.com
ErrorDocument 404
http://www.a.net/error.html
SetEnvIfNoCase Referer "^http://www.a.net" local_ref=1
SetEnvIfNoCase Referer "^http://a.net" local_ref=1
SetEnvIfNoCase Referer "^http://www.a.net" local_ref=1
SetEnvIfNoCase Referer "^httpa.net" local_ref=1
<FilesMatch "\.(gif|jpb|png|css|js|swf)">
Order Allow,Deny
Allow from env=local_ref
</FilesMatch>
</VirtualHost>