Achieve coect with the server, referencing it the same way in local and VPN coection

In local coection, I refer to the server using his netBios name with no problems at all (As it's expected to be), but when coected over VPN, I only been able to coect using the VPN ip.

The VPN server is a Windows 8.1. The clients are also Windows but linux too.

I'm using openVPN in all of them.

I read about WINS. But it's said that it's obsolete these days and it can be replaced with DNS. I have to say that I didn't find any tutorial easy to understand to implement an inteal DNS (Can You recommend me good literature about this?). I think the Host file is involved in that, but I haven't figured it out yet.