ns.eunic.kh.ua has no CNAME records.
Question and response
Question
dig ns.eunic.kh.ua. NS
Answer
The response has no answer records.
Authority
eunic.kh.ua. 62 SOA ns1.net.ua. info.eunic.net.ua. 2312141500 3600 1800 604800 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0