I have about 5 clients who are all running some iteration of Microsoft Windows Server, be it Server 2003, Server 2008, Server 2013.
I will commonly connect to their networks/machines in a few different ways depending on if I'm in the same building or not in the building.
- When I'm in the building I can simply connect to the WiFi and start a remote session using Microsoft Remote Desktop and enter the IP.
- When I'm not in the building one of the clients has a LogMeIn account which I connect to and then eventually make my way to the server.
What I'm looking for is advice or a set of instructions to allow me to connect to each of my clients servers with as little extra software as possible (ie by using existing services already installed in Windows Server or settings/software already available on their in-house routers being simple Linksys, SonicWall or even Cisco).
And then once I've set up this VPN connection I'd like to be able to connect to it, independent of what system I'm on. If I'm on OSX or Windows 7 I'd like do have VPN connections for each of my client locations, and then be able to RDP into their server or any machine on that network.
I've tried setting up VPN's a few of their servers but I wasn't sure I was going through the process correctly. Do I need to forward ports? Do I need to forward ports to their router? Their server? Isn't there a VPN service already available on Windows Server? How do I configure it to allow connections from wherever I might be? What if I'm on the road traveling and I need to remote into their machine so I tether from my cell phone and do a quick fix. How can I have the connection accepted independent of what the connecting IP is?