Dear All,
As I know the only connections for DNS is :

A Client-to-Server Query
   Source port is above 1023 at random, destination port is 53

A Server-to-Client Response
   Source port is 53, destination port is above 1023 at random

A Server-to-Server Query or Respone
   UDP - Source/Destination Port 53
   TCP - Same as Client-to-Server & Server-to-Client, above

I see many >1024 to >1024 UDP connections between my resolver (in DMZ) and
the DNS (in servers). What are they ?

Thanks
--Fatemeh T.


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