Dig
dig (сокращение от «domain information groper») — утилита (DNS-клиент), предоставляющая пользователю интерфейс командной строки для обращения к системе DNS. Позволяет задавать различные типы запросов и запрашивать произвольно указываемые сервера. Является аналогом утилиты nslookup.
Утилита dig входит в стандартный комплект DNS сервера BIND.
Пример
dig @ns.mail.ru mail.ru mx
вот её вывод:
; <<>> DiG 9.3.2 <<>> @ns.mail.ru mail.ru mx ; (1 server found) ;; global options: printcmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 2038 ;; flags: qr aa rd; QUERY: 1, ANSWER: 1, AUTHORITY: 6, ADDITIONAL: 7 ;; QUESTION SECTION: ;mail.ru. IN MX ;; ANSWER SECTION: mail.ru. 3600 IN MX 10 mxs.mail.ru. ;; AUTHORITY SECTION: mail.ru. 3600 IN NS ns5.mail.ru. mail.ru. 3600 IN NS ns4.mail.ru. mail.ru. 3600 IN NS ns.mail.ru. mail.ru. 3600 IN NS ns1.mail.ru. mail.ru. 3600 IN NS ns2.mail.ru. mail.ru. 3600 IN NS ns3.mail.ru. ;; ADDITIONAL SECTION: mxs.mail.ru. 3600 IN A 194.67.23.20 ns.mail.ru. 3600 IN A 194.67.23.130 ns1.mail.ru. 3600 IN A 194.67.57.103 ns2.mail.ru. 3600 IN A 194.67.57.104 ns4.mail.ru. 3600 IN A 194.67.57.4 ns5.mail.ru. 3600 IN A 194.67.23.232 ns3.mail.ru. 3600 IN A 194.67.23.17 ;; Query time: 109 msec ;; SERVER: 194.67.23.130#53(194.67.23.130) ;; WHEN: Fri Apr 18 18:12:59 2008 ;; MSG SIZE rcvd: 264
показывает mx-запись для домена mail.ru
См. также
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