polaris.longlines.com has no NS records.
NS records for this zone are defined at longlines.com.
NS records for this zone are defined at longlines.com.
Question and response
Question
dig polaris.longlines.com. NS
Answer
The response has no answer records.
Authority
longlines.com. 3600 SOA ns1.longlines.com. postmaster.longlines.com. 721599980 7200 3600 1728000 14400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0