Two servers

Good day. I use an external address, and two servers on the local network. The first server is virtualmin. Can I create a virtual host on the first server (which has virtualmin), and to see him on the other and the client will receive a second server resources? Maybe I need a separate external address for each server, then is it possible to manage both from a single panel of servers? Sorry for my English. I would be glad of any help or ideas of ways.