Question and response
Question
dig alestra.net.mx. A
Answer
alestra.net.mx. 0 A 138.128.167.82
Authority
alestra.net.mx. 86400 NS dns.alestra.net.mx.
alestra.net.mx. 86400 NS mail1.alestra.net.mx.
alestra.net.mx. 86400 NS mail2.alestra.net.mx.
Additional
dns.alestra.net.mx. 3600 A 201.163.57.5
mail1.alestra.net.mx. 3600 A 201.163.56.5
mail2.alestra.net.mx. 3600 A 201.163.58.5
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0