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Using wireless laptop on domain and public.

I have a client who uses his laptop in his office, connecting to AD Domain via wireless.
When in certain locations he uses it with his Verizon Air Card.
At home he uses it on his home network, via wireless.
And when public wireless is available, he'd like to use it for that.

Problem is, using AD I have to set his dns server to the AD server.  This works great until he is away from the office. Now I can set up a second DNS server to match his Air Card, but it won't work on home network, or public wireless.  Same issue if I set up home router as DNS, he can't use air card or public.  

He has Windows 7 Pro.

How do I make it so that he can work flawlessly regardless of which network he connects to?
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Jeff Perkins
Asked:
Jeff Perkins
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1 Solution
 
chris_martin62Commented:
Why not use like googles DNS for a secondary dns server he should be able to use it no matter where he is its ip is. 8.8.8.8

http://code.google.com/speed/public-dns/
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chris_martin62Commented:
Oh and you can use open DNS if you want to filter any websites. its free. also.

http://www.opendns.com/
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Jeff PerkinsOwnerAuthor Commented:
Chris,
  So I can set his secondary dns to any public dns and that won't cause issues with the AD server?
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chris_martin62Commented:
i would test it but whats the difference in you setting at the aircards make sure that your primary is your domain. or heres a link to add even more dns servers so it could be the third

http://www.pctips3000.com/how-to-assign-more-than-two-dns-servers-to-a-dns-client-windows-7-computer/
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Jeff PerkinsOwnerAuthor Commented:
Thanks Chris,
   I think you have solved my problem. I will test it first of the week and let you know. I want to test it and I am a little concerned, as I have read numerous times that in an AD situation you should have only the AD server as dns.... this seems impossible with a laptop using other networks as well.... but I'm hoping maybe someone with server experience will chime in.
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Jeff PerkinsOwnerAuthor Commented:
I'm sorry to everyone, closing now.
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