salt.ac.za has no NS records.
NS records for this zone are defined at ac.za.
NS records for this zone are defined at ac.za.
Question and response
Question
dig salt.ac.za. NS
Answer
The response has no answer records.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0