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Windows 2008 PPTP VPN clients need host file to resolve server names.  How to resolve?

Posted on 2011-09-19
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Last Modified: 2012-05-12
Windows 2008 PPTP VPN clients need host file to resolve server names.  How to resolve?

Clearly DNS isn't being communicated over this connection.  Problem with DHCP, DNS server or RAS server?  THanks.
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Question by:LB1234
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by:It breaks therefore I am
It breaks therefore I am earned 500 total points
ID: 36568124
Hi,

If you go to nslookup you can change the nameserver being queried by issuing the server command then the IP/Server name, like the following example.

system:~ $ nslookup
> server 8.8.8.8
Default server: 8.8.8.8
Address: 8.8.8.8#53
www.redhat.com
Server:            8.8.8.8
Address:      8.8.8.8#53

This changes the server I am querying for www.redhat.com to 8.8.8.8 (Google). If you do the same when accessing VPN then change it to an internal Nameserver you will be able to see if you can successfully query DNS through the tunnel.

As a workaround you can edit the VPN Client to use your internal nameservers. Go to the VPN properties, Networking then TCP/IP properties. You can then Set the connection to use your Internal DNS.
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by:LB1234
ID: 36569099
I'm aware that there are workaround, but I'm try to get to the root causes.  SHouldn't the VPN client get DNS information from a server so other modifications to the client settings are unnecessary?  
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by:LB1234
ID: 36569134
Let me also add that the servers i'm talking about resolving are internal domain servers.
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by:It breaks therefore I am
ID: 36569165
Is the remote machine joined to the domain?
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by:LB1234
ID: 36569179
Yes.
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by:It breaks therefore I am
ID: 36569468
Does it work if you use the FQDN then i.e server.domain.local ?

Sorry if there are more questions than answers.
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by:LB1234
ID: 36569647
Hey it's no problem.  I understand the need for more information.  Let me test and get back to you on that tomorrow.
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by:
It breaks therefore I am earned 500 total points
ID: 36571853
Ok thanks, if you find this works try setting a DNS search suffix via group policy. The search suffix will be your active directory domain name such as addomain.local for example.

http://www.techrepublic.com/blog/datacenter/manage-dns-suffix-configuration-through-group-policy/2665
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