Need to query an on premise DNS server over a shared Wi-Fi access points with public DNS servers (Google) configured.

Scenario:
We have several hundred wireless devices that connect to a shared Wifi infrastructure.  The entire IP network is flat IP infrastructure that is logically segregated with multiple internal Active Directory domains with their own DNS infrastructure.  The following conditions are true on the network.
1.  I can ping any wired device from any wireless device via IPv4 address
2.  I cannot ping any device on my LAN via host-name while connected to WiFi
3.  I can ping any wireless device from any hardwired device via IPv4 address
4.  I cannot ping any other wireless device while connected to WiFi
5.  WiFi devices attain IP addresses and DNS server addresses from the WiFi infrastructure
6.  The DNS servers assigned are Google's public DNS servers

What I would like to do is have my machines that are joined to my domain resolve our internal domain systems WITHOUT maintaining a host file on each laptop/tablet/mobile device and WITHOUT hardcoding my DNS server.


Penny for your thoughts

Thanks!
dogcheez702Asked:
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footechCommented:
Not possible without hardcoding the machines to use the internal DNS servers, or otherwise modifying your "chosen" clients.  Of course if you set the DHCP option to assign internal DNS servers that would help with the resolution, but non-domain machines would also be able to resolve internal addresses.

An option that might work for you is to set up a DHCP User Class, with which you can define different DNS servers to use if the client uses the matching class ID.  This would require you to set the class id on all the client machines that you want to use this DHCP User Class.
http://thelazyadmin.com/2007/02/dhcp-user-classes/

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dogcheez702Author Commented:
Yeah ... that is what I thought I'd have to deal with .... Thanks
dogcheez702Author Commented:
Part of our issue is that we do not control the DHCP scope that the WiFi uses.... I am going to have to reach back out to the WiFi provider to see if they can create a conditional forwarder to our domain in their DNS servers - Political NIGHTMARE!

Again thank you for your comment
footechCommented:
One last idea - maybe having your clients establish a VPN connection to your network will be sufficient.
dogcheez702Author Commented:
Sorry for the late post ... we have an on premise VPN solution that works great when it is used but our issue is more along the lines of users being willing to use the VPN when they know the server is 15 feet away from them.  because of the security policies we are not allowed to do split tunneling for VPN traffic which forces our users to go out to the internet, back in to or network and then back out to the internet for any work they do while connected to the VPN.  you can imagine the issues we are facing with this kind of thing.

We are in talks with the WiFi provider to create the conditional forwarders for us.  Lots of political capital is being spent to achieve this goal while the affected client base is relatively small (in the grand scheme of things)

again ... thanks to all that chimed in
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