VPN client should not connect to special server
 

Hi every body
in my office all users connect to internet via VPN.in our office there is one special server that we want when users connected via VPN,users can not connect to the special server and when users are not connect to via VPN can connect to that server.
what solutions can suggest for this purpose ??
thanks for any help or guidance

Is that server on a world routable IP address? Can you just block the VPN block with iptables or something similar? More details about the network would be helpful.

thanks for your reply
that special server has private address.out gateway is linux and we have root access to that server.
thanks for any more help or guidance

Dear Matir
Thanks for your attention,I am waiting for your guidance