Ok here is what I want to try and acomplish. I use to run an iis server then got hooked on linux and found out that it is much easier to use. Anyway on iis there were things called host headers and they worked like this. If you only have one ip then you set up your domain once you got that setup then you add a virtual domain. In the virtual domain you can add a host header to point to a directory that held you files. What I want to do is setup a mail.domain.com instead of www.domain.com:81/roundcubemail.index.php. I want to be able to type mail.domain.com and have it go to roundcubemail. If any one can help me out on this or at least steer me in the right direction.