server2.seas.ucla.edu has no CNAME records.
Question and response
Question
dig server2.seas.ucla.edu. NS
Answer
The response has no answer records.
Authority
seas.ucla.edu. 3244 SOA server1.seas.ucla.edu. help.seas.ucla.edu. 2026030200 21600 3600 604800 21600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0