Question and response
Question
dig a.web.mkc1.etrn.com. MX
Answer
a.web.mkc1.etrn.com. 300 MX 10 a-web-mkc1.b.mx.etrn.com.
a.web.mkc1.etrn.com. 300 MX 20 a-web-mkc1.d.mx.etrn.com.
Authority
etrn.com. 172800 NS ns1.chi1.etrn.com.
etrn.com. 172800 NS ns2.chi1.etrn.com.
etrn.com. 172800 NS ns1.chi3.etrn.com.
etrn.com. 172800 NS ns2.chi3.etrn.com.
etrn.com. 172800 NS ns3.chi3.etrn.com.
etrn.com. 172800 NS ns1.fmt.etrn.com.
etrn.com. 172800 NS ns2.fmt.etrn.com.
Additional
ns1.chi1.etrn.com. 172800 A 204.62.29.253
ns2.chi1.etrn.com. 172800 A 45.56.69.153
ns1.chi3.etrn.com. 172800 A 204.62.30.253
ns2.chi3.etrn.com. 172800 A 204.62.28.253
ns3.chi3.etrn.com. 172800 A 174.143.150.29
ns1.fmt.etrn.com. 172800 A 178.79.145.131
ns2.fmt.etrn.com. 172800 A 204.62.31.253