Hi,
Adding to Genies comments,
1. You would purchase the WinGate licnese from the blue box at the bottom of this page:
https://commerce.qbik.com/purchase.php ... From what you have described, you will require 5 x Single user license's. 1 for the server and 4 for the remote clients.
2. There is a VPN configuration white paper available from here:
http://www.wingate.com/files/VPN_Setup_Guide.pdf ... but here is a quick briefing:
a) On the File Server, Install WinGate VPN, make sure any firewalls / security suites are disabled for the sake of testing.
b) Open up (Windows) Start menu --> Programs --> WinGate --> GateKeeper --> (below miscellaneous heading) VPN --> VPN to Host
Steps to note in image above:
4. Once you have generated the certificate, select it from drop down list.
6. In the policies tab, select the users who will be granted VPN access.
Step to note in image above.
7. Select the new Host you have created, and click the "Export Config" button; you will be required to put the internet addresss/domain name for the VPN. (To find out the IP address of the internet conenction, go to
http://www.whatismyip.com )
c) On your ADSL modem/router, map TCP / UDP port 809 to the file servers IP address; some modems/routers then need to be reset when new ports are added.
d) On the remote client laptops, Install WinGate VPN, reboot, locate .vpn file that was exported prior (in step 7 image above) and double click, it will prompt for the username and password to connect with.
e) Then on client machine, right click the new vpn joiner that was set up. And select connect.
Troubleshoot:
I) If the remote clients are unable to connect, there is usually a firewall issue on the server. Get the clients to open a command prompt and test via telnet whether the ports are opened correctly.
(windows) Start menu --> Run --> cmd --> telnet -->
open vpn.myserver.com 809
If the Windows goes blank, or say "Press any key" then you have connectivity to that port.
If you get the error message: Connecting To vpn.myserver.com...Could not open connection to the host, on port 809: Connect failed
... Then there most probably is a firewall blocking the port.
II) If you get a message stating you have conflicts, then check that each network is on a different subnet. For example, if the Host network is using the IP Address schema:
192.168.0.x / 255.255.255.0
Then the other network joining in requires to be on a different subnet.
e.g 192.168.1.x / 255.255.255.0
Next network that can be joined will be
192.168.2.x / 255.255.255.0 or another private IP address range on a differnet subnet.
Ask if you require more assistance.