Rewrite rules for blocking URL access

Question

I have two sites,

www.example.com and offers.example.com

Now i want the site - offers.example.com to be accessed only through www.example.com

ie, I dont want to give public access to offers.example.com ...

Can i achieve this through rewrite rules?

or do i have to do this through PHP code?

Please suggest?

Answer 1

you can not do that with php code as the second page viewed will not have the www. referer

you will need to build some sort of authentication with php or use .htpasswd and only allow users with logins to go there.

http://httpd.apache.org/docs/2.0/programs/htpasswd.html

http://php.net/manual/en/features.http-auth.php