mail.fetec.org.tw has no NS records.
NS records for this zone are defined at fetec.org.tw.
NS records for this zone are defined at fetec.org.tw.
Question and response
Question
dig mail.fetec.org.tw. NS
Answer
The response has no answer records.
Authority
fetec.org.tw. 3600 SOA dns01.fetnet.net. admin.fetnet.net. 2009082654 900 600 86400 3600
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0