Website Redirect to Internal Server

Hello,

Not sure if this is the correct forum but I have virtualmin installed and want to be able to do some redirection with other in house servers.

Im pretty new to this…

I have 4 internal servers, currently hosting websites of various different vendors, Id like to be able to have a single proxy type server that redirects requests through to the correct internal server without . having to publish a whole bunch of different ports etc.

for example
mail.mydomain.com redirects to 1.2.3.4 port 80, 443
remote.mydomain.com redirects to 1.2.3.5 port 80, 443

etc etc all sharing a single wan ip ?

Is this possible

Many thanks