Question and response
Question
dig mx.comstar.ru. A
Answer
mx.comstar.ru. 300 A 213.87.75.51
Authority
comstar.ru. 86400 NS dns1.mtu.ru.
comstar.ru. 86400 NS dns0.mtu.ru.
Additional
dns0.mtu.ru. 600 A 195.34.32.83
dns1.mtu.ru. 600 A 212.188.8.37
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0