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  • SharkyForums.Com - Print: DMZ

    DMZ
    By superslub June 13, 2001, 05:08 AM

    Can somone enlighten me on this router subject?

    By Moridin June 13, 2001, 10:45 AM

    A DMZ is more of a firewall issues then a router issue. The idea behind a DMZ is that outward facing internet servers need much lower levels of security then your internal servers and workstations. The Internet facing servers still need be behind a firewall. The third issue is that your workstations and servers often need more access to your Internet servers then you want to exist from the Internet.

    A DMZ is a solution to all these problems. Let's say your firewall supports 4 ports. Each can have it's own security and rules. Your internal machines would all sit off of one port and have one level of security. (Different machines may still have slightly different access through the firewall). Your external servers are in an isolated environment off another port on the firewall. This way your external servers are still protected by you firewall without compromising the security of your internal servers. Any traffic between your internal and external machines must still go through your firewall but is not exposed to the Internet.

    By pm June 13, 2001, 10:57 AM

    quote:Originally posted by superslub:
    Can somone enlighten me on this router subject?

    My point was that, when you mentioned messing with Network Neighborhood it sounded to me like you were thinking about enabling file and printer sharing over the internet. To get this to work, you would need to put that machine on the router's DMZ (which Moridin has explained very well above) because otherwise the router's firewall-like capabilities would mask the "file and printer sharing" from the rest of the Internet. But obviously sharing all of your computers files directly on the internet will allow everyone in the world who is interested to look at your harddrive and, if you aren't careful delete and add new files. So my point was, what you want to do should not be done in the obvious way.

    So what you want to do is share the files, but not let anyone else see them. To do this, the obvious choice is encryption.

    As far as VPN, to save me a post in the other thread, Windows 2000 Server comes with a decent copy of a VPN program. Intel acquired Shiva and now has a line of software called "NetStructure" which would be a good, if expensive, solution. SSH2 is "SecureShell 2.0" and it's a way of communicating across the Internet with a reasonably high level of encryption. SSH2 is used mostly by Unix/Linux, but there are clients that are starting to show up for Windows and many of them are free or at least shareware. Lastly, the latest versions of PcAnywhere by Symantec have the capability of doing this.
    http://www.symantec.com/pcanywhere/Consumer/

    Symantec's solution is probably the cheapest and easiest solution, if you don't already have VPN software.

    Edit: checked pricing on PcAnywhere and at $180, I'm now sure that there are cheaper ways to do this. I seem to remember earlier versions of PCAnywhere used to be under $50. Inflation must be higher over at Symantec.


    By pm June 13, 2001, 11:32 AM

    A little bit of searching under Google turned up this:
    http://cipe-win32.sourceforge.net/

    Eventually I may be interested in doing something similar myself (using my laptop to access my home network over the Internet when I'm travelling) so this is of personal interest as well.

    By Moridin June 13, 2001, 11:52 AM

    quote:Originally posted by pm:

    to save me a post in the other thread

    this must be the HT forum. In any other forum people go out of their way to make the additional post whenever possible.

    quote:Originally posted by pm:

    As far as VPN, to save me a post in the other thread, Windows 2000 Server comes with a decent copy of a VPN program.

    I haven't really looked at this aspect of Windows 2000. Is the VPN support in Win 2K a lot better then NT4? NT4 had quite a lightweight solution (Which still may be ok for a typical home user).

    Superslub, one more thing to consider. Although I do not object to these threads being posted since they are "more advanced" networking topics and therefor can (to me) be considered Highly technical. (Sourdaisy, if you disagree, feel free to let me know ) They are still networking questions.

    There are a number of people over in the networking forum who are very good at this sort of thing. I know the theory, and have done some of this in labs, but I am not currently running anything like this in my home network, and at work I have network people to look after it for me. Ua549 and is running something similar to what you are looking for and may give you the best advice. Although he drops by HT once in a while you would probably be more likely to get his attention in his own forum. (Networking)

    Not only that there may be others there interested in this topic as well.

    By superslub June 13, 2001, 02:17 PM

    So is Win2k server's VPN more robust? I do have the OEM

    By Mr.Squish June 14, 2001, 01:45 AM

    Never used the VPN in NT 4.0, but the 2k one works pretty well and is extremely easy to setup. I'm running a VPN between me and a buddy with encryption. We originally did it, because we wanted to try out a multiplayer game that only supported IPX. But its kinda nice, and we both have broadband anyway.


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