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My VPN connection does not have its own Network adapter as a result all DNS queries are sent down my Internet connection. My VPN connection works fine handling requests to a specific IP address range: 192.168.x.x.

The Question

I want to specify my Server in my outlook account settings using an IP address so Outlook can connect to Exchange over my VPN. However when I change the setting it goes off finds the host names and uses that instead - as a result when trying connect over VPN cannot connect as cannot resolve the host name. How can I force it to use the IP address??

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how about making a host file entry? – SpacemanSpiff Jan 24 '12 at 5:51
please tell me more.. – user55029 Jan 24 '12 at 6:07
Do people still make hostfile entries? This leads mostly to problems. What OS ar you using? How do connect to the VPN? Usually you can manage the vpn-connection itself and configure your DNS-Servers. – Tom Jan 24 '12 at 7:35
A hostfile is used for local resolution and takes precedence of DNS, WINS, broadcast, everything. To solve a simple problem on a single computer it is more than adequate to the task. Edit C:\Windows\system32\drivers\etc\hosts and put the name of your server in. Keep in mind, this will no longer resolve the public address unless you remove the entry. – SpacemanSpiff Jan 24 '12 at 14:14
awesome - it is only for a few developers - if you put it in an answer I can mark it as correct – user55029 Jan 25 '12 at 0:36
up vote 5 down vote accepted

Add an entry to the Windows host file:, which will make Windows use the IP address you specify instead of querying DNS when resolving the host.

For example:   my_exchange_server.domain.local

Works perfectly!

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