ns4.msudenver.edu has no NS records.
NS records for this zone are defined at msudenver.edu.
NS records for this zone are defined at msudenver.edu.
Question and response
Question
dig ns4.msudenver.edu. NS
Answer
The response has no answer records.
Authority
msudenver.edu. 900 SOA gridmaster.msudenver.edu. noc.msudenver.edu. 101974 10800 1080 2592000 900
Additional
. 0 OPT ; payload 1220, xrcode 0, version 0, flags 0