Date: Mon, 09 Jul 2012 23:37:10 +0200 From: =?utf-8?Q?Dag-Erling_Sm=C3=B8rgrav?= <des@des.no> To: Mark Blackman <mark@exonetric.com> Cc: "Bjoern A. Zeeb" <bzeeb-lists@lists.zabbadoz.net>, Doug Barton <dougb@FreeBSD.org>, Garrett Wollman <wollman@bimajority.org>, Avleen Vig <avleen@gmail.com>, FreeBSD Hackers <freebsd-hackers@freebsd.org> Subject: Re: Replacing BIND with unbound Message-ID: <86a9z8mxa1.fsf@ds4.des.no> In-Reply-To: <1E29121E-62B1-4929-BB7B-4FCA5D893F51@exonetric.com> (Mark Blackman's message of "Mon, 9 Jul 2012 22:13:12 %2B0100") References: <CA%2BQLa9B-Dm-=hQCrbEgyfO4sKZ5aG72_PEFF9nLhyoy4GRCGrA@mail.gmail.com> <4FF2E00E.2030502@FreeBSD.org> <86bojxow6x.fsf@ds4.des.no> <89AB703D-E075-4AAC-AC1B-B358CC4E4E7F@lists.zabbadoz.net> <4FF8C3A1.9080805@FreeBSD.org> <20472.51031.308284.775990@hergotha.csail.mit.edu> <4FF8C890.9030408@FreeBSD.org> <CAMjP1KmVDJuKw09UFXb2M6QaL1dD1ocSjMOZLtjKiYFYoF9f4Q@mail.gmail.com> <4FFA7174.7050604@FreeBSD.org> <CAMjP1K=MahXEgHM-gKHFfDpQRDXY_0LGTn0JEE0Zm43%2Bh5jfPA@mail.gmail.com> <4FFA7980.4000707@FreeBSD.org> <CAMjP1K=b8mwqe31m=OqjUV%2BF=B85L4vpfT%2BDj00a1voPB-8TwA@mail.gmail.com> <D49E4B08-AC64-48C0-B918-94A7E30AB981@exonetric.com> <4FFB46A4.5050504@FreeBSD.org> <1E29121E-62B1-4929-BB7B-4FCA5D893F51@exonetric.com>
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Mark Blackman <mark@exonetric.com> writes: > my DNS resolution is broken, so my ports can't download any tarballs.=20 > In this case, I reach for dig to see which part of the DNS resolution > chain is failing me.=20 > > At the bare minimum, 'dig' should be an alias for 'drill', which I have=20 > to say isn't working brilliantly for me on OS X. It suggests I use '-t'=20 > and then keeps suggesting I use '-t' even when I do use it. > > drill feels a bit rough around the edges to me. This reminds me of the (probably apocryphal) American grade school teacher who complained that the metric system was so inexact; for instance, a meter is _approximately_ a yard, a kilometer is _approximately_ two thirds of a kilometer, etc. By which I mean, of course, that you are blaming drill not for its own shortcomings, but for those of the wrapper you use to _approximate_ dig with drill. The -t option doesn't mean the same for drill as for dig. A proper dig wrapper for drill would have to translate one to the other. However, you should never need the -t option when using dig; I suspect that it exists only for people who are so used to host that they want to use the same command line except for s/host/dig/. Instead of 'dig -t soa des.no', you should use 'dig des.no soa'. The syntax is dig [@server] name [type] [class] I'm not sure why it supports a class argument, since as far as I know, the only class still in use is IN. In the most common case, dig and drill are nearly identical; the command line is exactly the same (except for s/dig/drill/), and the output nearly so - drill doesn't print a question section. If that's a problem for you, it's easily fixed. % dig @ns.des.no des.no soa=20=20 ; <<>> DiG 9.6.-ESV-R5-P1 <<>> @ns.des.no des.no soa ; (1 server found) ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 47226 ;; flags: qr aa rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 2, ADDITIONAL: 1 ;; QUESTION SECTION: ;des.no. IN SOA ;; ANSWER SECTION: des.no. 3600 IN SOA ns.des.no. hostmaster.des.n= o. 2012042401 3600 900 3600000 3600 ;; AUTHORITY SECTION: des.no. 3600 IN NS ns.des.no. des.no. 3600 IN NS ns.hyp.net. ;; ADDITIONAL SECTION: ns.des.no. 3600 IN A 194.63.250.121 ;; Query time: 0 msec ;; SERVER: 194.63.250.121#53(194.63.250.121) ;; WHEN: Mon Jul 9 23:22:05 2012 ;; MSG SIZE rcvd: 128 % drill @ns.des.no des.no soa ;; ->>HEADER<<- opcode: QUERY, rcode: NOERROR, id: 61642 ;; flags: qr aa rd ra ; QUERY: 1, ANSWER: 1, AUTHORITY: 2, ADDITIONAL: 1=20 ;; QUESTION SECTION: ;; des.no. IN SOA ;; ANSWER SECTION: des.no. 3600 IN SOA ns.des.no. hostmaster.des.no. 2012042401 36= 00 900 3600000 3600 ;; AUTHORITY SECTION: des.no. 3600 IN NS ns.des.no. des.no. 3600 IN NS ns.hyp.net. ;; ADDITIONAL SECTION: ns.des.no. 3600 IN A 194.63.250.121 ;; Query time: 0 msec ;; SERVER: 194.63.250.121 ;; WHEN: Mon Jul 9 23:22:23 2012 ;; MSG SIZE rcvd: 128 DES --=20 Dag-Erling Sm=C3=B8rgrav - des@des.no
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