Can't connect to SBS server from Internet

Discussion in 'Routers and Switches' started by xplanes, Jan 6, 2015.

  1. xplanes

    xplanes

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    Hello, I recently reinstalled SBS 2008 R2 on a Supermicro Workstation. This is in my home as an educational project. Something has changed between the first install and the second and I'm not sure what. Originally I had SBS 2008 and Ubuntu on a dual boot using Grub. I took a new hard disk and installed SBS 2008 clean single boot, updated and then installed a couple third party servers... A game server, a Teamspeak3 server and I've configured Remote Desktop Client on my Win7 and Win8 laptops.

    I have a Frontier DSL Modem/Router with DHCP disabled. It's connected to a Wireless Gigabit Router with DHCP enabled. The Router had port forwarding setup for the server originally with a reserved IP of 192.168.0.104 With that IP I could connect the game clients and my TS3 clients on the LAN and with the WAN IP I could connect to the same servers from the Internet.

    Here's what's different. When I setup the server using the same NIC, Router, reserved IP etc. I cannot connect from my LAN or Internet. I enabled the DNS server in SBS 2008 and now I can connect to the game server, the TS3 server and Remote Desktop access to the server from inside the LAN. It will no longer connect by using the IP, I have to type in the DNS name "SBS2008". If I try to connect from the Internet I get error messages that the server could not be found or such.

    I do have the port rules setup in the advanced firewall settings of SBS 2008 and I have added program exceptions. Both of which are set to Public as well. Since I am learning as I go I'm sure there is some service running that shouldn't or one that should but isn't.

    What else is necessary for SBS 2008 to receive the forwarded port request from the router. I tried using the following for RDP xxx.xxx.xxx.xxx/SBS2008 but it said the / was not allowed. I used xxx.xxx.xxx.xxx.SBS2008 and just the IP by itself.

    Any tips on where I can look next or reading material that will fill in the blanks would be greatly appreciated.
     
    xplanes, Jan 6, 2015
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  2. xplanes

    xplanes

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    I did discover one thing. The SBS setup gave the NIC a fixed IP that was not the one my router had reserved for it. I turned that off and let the router's DHCP server assign the IP. Now I can join the server from my lan with either the Computer Name (SBS2008) or the LAN IP (192.168.0.104) I tried from work and I still can't connect with any of the servers running on SBS2008 R2

    So now I know the router is for sure forwarding the ports to the correct IP and SBS 2008 is accepting those connections for TeamSpeak 3, America's Army 2.5 and Remote Desktop Connection from the LAN. The same computer with the same credentials and workgroup cannot when the request is coming from outside my home network.

    Ideas?
     
    xplanes, Jan 16, 2015
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