Connected: An Internet Encyclopedia

 Wednesday 7 January 2009 10:11:53 1231323113

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Dig

Dig, the domain information grouper, is a tool that sends DNS queries to servers and prints the replies. I think most network engineers find it more useful than nslookup, which has now be depricated by ISC, anyway.

The Web form below uses a Perl script to make DNS queries. It's output is similar to Dig, but not identical, since it's purely Perl-based, so that it works on Windows systems that don't have Dig. If it doesn't work, try the original version at freesoft.org. Dig is available as part of the Bind distribution.

$ dig @localhost www.freesoft.org A IN

;; query(www.freesoft.org, A, IN)
;; send_udp(127.0.0.1:53)
;; answer from 127.0.0.1:53 : 82 bytes
;; HEADER SECTION
;; id = 42390
;; qr = 1    opcode = QUERY    aa = 1    tc = 0    rd = 1
;; ra = 1    rcode  = NXDOMAIN
;; qdcount = 1  ancount = 0  nscount = 1  arcount = 0

;; QUESTION SECTION (1 record)
;; www.freesoft.org.	IN	A

;; ANSWER SECTION (0 records)

;; AUTHORITY SECTION (1 record)
freesoft.org.	38400	IN	SOA	sparky.freesoft.org. kyle.freesoft.org. (
					2004042006	; Serial
					10800	; Refresh
					3600	; Retry
					604800	; Expire
					38400 )	; Minimum TTL

;; ADDITIONAL SECTION (0 records)
;; query status: NXDOMAIN

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