Question and response
Question
dig RETNNET.RU. NS
Answer
RETNNET.RU. 3600 NS nsb.retn.net.
RETNNET.RU. 3600 NS nsa.retn.net.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0