adig − print information collected from Domain Name System (DNS) servers
adig [OPTION]... NAME...
Send queries to DNS servers about NAME and print received information, where NAME is a valid DNS name (e.g. www.example.com, 1.2.3.10.in-addr.arpa).
This utility comes with the c−ares asynchronous resolver library.
−c class
Set the query class. Possible values for class are NY, CHAOS, HS, IN (default).
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−d |
Print some extra debugging output. |
−f flag
Add a flag. Possible values for flag are igntc, noaliases, norecurse, primary, stayopen, usevc.
−h, −−help
Display this help and exit.
−T port
Use specified TCP port to connect to DNS server.
−s server
Connect to specified DNS server, instead of the system’s default one(s).
−t type
Query records of specified type. Possible values for type are A (default), AAAA, AFSDB, ANY, AXFR, CNAME, GPOS, HINFO, ISDN, KEY, LOC, MAILA, MAILB, MB, MD, MF, MG, MINFO, MR, MX, NAPTR, NS, NSAP, NSAP_PTR, NULL, PTR, PX, RP, RT, SIG, SOA, SRV, TXT, URI, WKS, X25,
−U port
Use specified UDP port to connect to DNS server.
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−x |
For an IPv4 -t PTR a.b.c.d lookup, query for |
d.c.b.a.in-addr.arpa.
This more often gives correct names in the ANSWER.
For an IPv6 -t PTR addr lookup, query for
a.b.c....z.IP6.ARPA.
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−xx |
As for -x and an IPv6 address, compact a.b.c....z.IP6.ARPA. into a RFC-2673 bit-string. This compacted bit-string form is not supported by many DNS-servers. |
Report bugs to
the c-ares mailing list:
https://lists.haxx.se/listinfo/c-ares
acountry(1), ahost(1).
This utility is
based on code/ideas contained in sofware written by Greg
Hudson (ares) carrying the following notice:
Copyright 1998 by the Massachusetts Institute of Technology.
Permission to use, copy, modify, and distribute this
software and its documentation for any purpose and without
fee is hereby granted, provided that the above copyright
notice appear in all copies and that both that copyright
notice and this permission notice appear in supporting
documentation, and that the name of M.I.T. not be used in
advertising or publicity pertaining to distribution of the
software without specific, written prior permission. M.I.T.
makes no representations about the suitability of this
software for any purpose. It is provided "as is"
without express or implied warranty.
No further copyright claims are being made by the author(s)
of this utility.