From: leihu@nojunk.com   
      
   Hi there,   
      
   I learnt from documents that to run VPN on a win2k/2k3 server, it needs two   
   network cards: one connected to the Internet, and one to the LAN. That's   
   fine, and I understand this. However, our 2k3 server has only one NIC, and   
   we configured the VPN, and it's working fine. Saying that, I'd still like to   
   know if there's any problem (mainly security issues I guess) with this   
   solution. Hope your Experts can explain to me. Thanks!   
      
   This is what we have. We have about 20 machines with one win2k3 server, all   
   networked. The server functions as the domain controller, terminal server,   
   file server, etc.. And we have an ADSL modem with built in router for the   
   broadband connection. I think this is a typical network structure in today's   
   small businesss company.   
      
   Now we have a new branch in a different suburb, and people there would like   
   to access the data and use the terminal service in the main branch. So we   
   configured the 2k3 server to add VPN services. We then modified the   
   modem/router configuration to open the VPN port (actually, this is the only   
   port opened). Everything is working fine to me. But back to my question   
   above, is there any security pitfall with this? Or, do you guys have any   
   other smarter ideas to achieve this?   
      
   Thanks!!   
      
   Lei   
      
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