Чтобы проверить SOA какого нибудь хоста в семействах ОС Windows запускаем cmd и вводим nslookup
nslookup
>set type=SOA
>mail.ru
результат:
Non-authoritative answer:
mail.ru
primary name server = ns.mail.ru
responsible mail addr = hostmaster.mail.ru
serial = 320905667
refresh = 900 (15 mins)
retry = 900 (15 mins)
expire = 1209600 (14 days)
default TTL = 300 (5 mins)
mail.ru nameserver = ns2.mail.ru
mail.ru nameserver = ns3.mail.ru
mail.ru nameserver = ns4.mail.ru
mail.ru nameserver = ns5.mail.ru
mail.ru nameserver = ns.mail.ru
mail.ru nameserver = ns1.mail.ru
ns.mail.ru internet address = 217.69.129.230
ns.mail.ru AAAA IPv6 address = 2a00:1148:1:1322::1:c0de
ns1.mail.ru internet address = 94.100.179.159
ns1.mail.ru AAAA IPv6 address = 2a00:1148:1:1311::1:a002
ns2.mail.ru internet address = 94.100.186.189
ns2.mail.ru AAAA IPv6 address = 2a00:1148:1:1322::1:a003
ns3.mail.ru internet address = 94.100.179.93
ns3.mail.ru AAAA IPv6 address = 2a00:1148:1:1311::1:a001
ns5.mail.ru internet address = 217.69.129.241
ns5.mail.ru AAAA IPv6 address = 2a00:1148:1:1322::1:a002
>
nslookup
>set type=SOA
>mail.ru
результат:
Non-authoritative answer:
mail.ru
primary name server = ns.mail.ru
responsible mail addr = hostmaster.mail.ru
serial = 320905667
refresh = 900 (15 mins)
retry = 900 (15 mins)
expire = 1209600 (14 days)
default TTL = 300 (5 mins)
mail.ru nameserver = ns2.mail.ru
mail.ru nameserver = ns3.mail.ru
mail.ru nameserver = ns4.mail.ru
mail.ru nameserver = ns5.mail.ru
mail.ru nameserver = ns.mail.ru
mail.ru nameserver = ns1.mail.ru
ns.mail.ru internet address = 217.69.129.230
ns.mail.ru AAAA IPv6 address = 2a00:1148:1:1322::1:c0de
ns1.mail.ru internet address = 94.100.179.159
ns1.mail.ru AAAA IPv6 address = 2a00:1148:1:1311::1:a002
ns2.mail.ru internet address = 94.100.186.189
ns2.mail.ru AAAA IPv6 address = 2a00:1148:1:1322::1:a003
ns3.mail.ru internet address = 94.100.179.93
ns3.mail.ru AAAA IPv6 address = 2a00:1148:1:1311::1:a001
ns5.mail.ru internet address = 217.69.129.241
ns5.mail.ru AAAA IPv6 address = 2a00:1148:1:1322::1:a002
>