Redirecting a sub-domain (dummy question)

hi guys,
I couldn't figure out how to setup a subdomain to be redirected to control panel,
for example I want to redirect cp.domain.com to https://host.domain.com:81

or

mail.domain.com to https://www.domain.com:81/webmail


thanks

 

Have a look here: http://www.howtoforge.com/forums/showpost.php?p=2633&postcount=12