block referrer URL from my domain

[ge3k]

I have two domain names points to an IP address
domain1.com and configured with A resource record and
domain2.com and configured with cname resource record and points to domain1.com

I want a folder on the server to only be opened with domain2.com cant be opened with domain1.com

for exmaple
I want vistors from "domain1.com/folder" see not found message.
and vistors from "domain2.com/folder" see the files in that folder.

I tried to configure .htaccess file and and put it in "/[b]folder[/b]"
[code]
<Limit GET>
order deny,allow
deny from .domain1.com
allow from .domain2.com
</Limit>
[/code]
but nothing happened.

Is there a soultion using "HTTP_REFERER".
please help?

[GingerRobot]

There wont be a definitave solution using http referrer - some firewalls do not allow the referrer to be sent and some browers can be configured not to send them.

[poirot]

Yep, it's simple... You can use regular expressions to check if the HTTP_REFERER is domain1.com and if it returns true you use die() or whatever...

But as GingerRobot said, it's not a very good idea since this header is not "trustworthy"

[ge3k]

thanks gurus for help and suggetions
but could you give me a simple code to apply, I'm still noob.
TIA.