Resolved DNS Server

In the Windows Network Settings I have specified 2 DNS servers: an primary and secondary server. Normally the primary DNS server is used unless it is not available and Windows switches to the secondary server. But is never switches back even if the primary server is back online!! (it switches back if the secondary server becomes unavailable).
My question is: is there a tool so that I can see which DNS server is used at the moment?

 

Please complete your system details. I need to know what OS you are using before searching for an answer.

 

my OS is a Windows 7 ultimate workstation.

 

The page this links to has a list of freeware of which a couple come close to what you are looking for. I hope this will be of some help as I was not able to find anything which perfectly matched your requirements.

http://www.softlist.net/products/dns_server_address-freeware.html

 

thank you markmadras
I'll certainly browse through these tools.