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Dig
From NetSec
Domain Information Groper
Dis a command line tool used to query DNS servers, for example:
$ dig blackhatacademy.org ; <<>> DiG 9.7.3 <<>> blackhatacademy.org ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 29669 ;; flags: qr rd ra; QUERY: 1, ANSWER: 2, AUTHORITY: 0, ADDITIONAL: 0 ;; QUESTION SECTION: ;blackhatacademy.org. IN A ;; ANSWER SECTION: blackhatacademy.org. 30 IN A 173.245.60.33 blackhatacademy.org. 30 IN A 173.245.61.99 ;; Query time: 18 msec ;; WHEN: Sat Sep 3 01:14:37 2011 ;; MSG SIZE rcvd: 69