Route RDP to internal computers through one public ip to multiple internal ips using host headers.
i have done this with http
Mikrotik does this with http using proxy.
http://wiki.mikrotik.com/wiki/Multiple_Web_Servers

I don't know if this is possible with RDP, but it sure would be useful if you could.

I would like to be able to route RDP (port 3389) to internal computers based on the host header.

Example

All domains would go to the same external ip.

john.mydomain.com:3389 would route to internal ip 192.168.1.5
scot.mydomain.com:3389 would route internal ip 192.168.1.6
mary.mydomain.com:3389 would route to internal ip 192.168.1.7

Thanks to anyone who can help!

do it this way:

rdp.mydomain.com:3389 would route to internal ip 192.168.1.5:3389
rdp.mydomain.com:3390 would route internal ip 192.168.1.6:3389
rdp.mydomain.com:3391 would route to internal ip 192.168.1.7:3389

there is no such thing as host headers with RDP, its just raw TCP communications.