ns2.trilogy.net.do has no CNAME records.
Question and response
Question
dig ns2.trilogy.net.do. NS
Answer
The response has no answer records.
Authority
trilogy.net.do. 6526 SOA ns1.trilogy.net.do. abuse.viva.net.do. 2020090501 10800 3600 604800 38400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0