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Using Two Separate Networks on Same Workstation Without Compromising Security

Posted on 2013-06-24
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Last Modified: 2013-07-02
Good Morning All -

I have a unique question for a client in which I don't know if a simple answer is possible.  Thought I'd post it here to see if anyone had suggestions or thoughts...

The Resources
- Network #1 - Windows AD Managed / Internet is Proxy Driven
- Network #2 - Cable Modem - Firewalled, but no services are blocked

Here's What I Want To Do
- Plug two separate networks (different subnets) into a single workstation (different NICs.)  - Be able to use Network #1 for everything except specific sites / services that I define via rules or a list which will route via Network #2 instead
- Ensure that no traffic directly communicate between #1 & #2

Basically, he has been granted the use of Dropbox and a few other sites, but they said that the way the proxy was set up, they couldn't just enable it for him.  Therefore, he currently has a separate computer and cable modem for just these services.  He's wanting to combine them, but I realize this to be somewhat of a security risk.  

The box he wants this on runs Windows 7 x64, but is willing to purchase a router or any other hardware if required to run this.  Personally, I was thinking such equipment may be pricey, but am all for using DDWRT on cheaper hardware if it's a solution.

I simply want to know what options are out there - if any.

Thanks Guys!
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Question by:BzowK
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CompProbSolv earned 500 total points
ID: 39272244
Is this Windows Pro?  If so, consider using Windows Virtual PC to create a virtual session that has no access to Network #1 and also limit access to disk space outside of the virtual box.
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Assisted Solution

by:BzowK
BzowK earned 0 total points
ID: 39273248
Hmm - That's a good idea.  I use VirtualBox for Linux images so that should do the trick (assuming VirtualBox can select which adapter to use.)  Thanks!  

I'd still like for them to co-exist if possible, though...  Any other suggestions?  Thanks again
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Author Closing Comment

by:BzowK
ID: 39292550
VirtualBox is a similar suggestion, but much better option IMO...
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