Question and response
Question
dig vnpt.vn. NS
Answer
vnpt.vn. 900 NS vdc-hn01.vnn.vn.
vnpt.vn. 900 NS hcm-server1.vnn.vn.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0