I am trying to setup a Linux, for some kind like Remote Desktop proxy.
My network setup is something like this:
I drew only 3 sites and 3 servers to illustrate, but in fact, we have about 7 sites in a mesh, and about 2-3 servers per site. All of those sites are connected through L2TP/IPSEC tunnels through various media, from fiber, to 3G or EDGE connection.
Right now, I am using DDNS to connect to those remote locations, but this is getting tedious, since I have to maintain multiple DDNS, while I have multiple IP blocks at our data center unused. So I think I need something like an RD gateway, to proxy my requests to Server A, Server B, and Server C through one Static IP at Server A. Problem is, servers in A site are all Linux based. But some in site B and C are Windows based, especially that we are now using Windows 2016 Hyper-V Edition for our newest site.
Now, is there a way so I can Remote Desktop to ALL servers in ALL sites, using Server A as a proxy?