dig's answers
Mark Andrews
Mark_Andrews at isc.org
Thu Feb 16 03:16:28 UTC 2006
> Hi,
>
> dig gives me an answer that doesn't feel consistent to me. Perhaps I
> don't know precisely
> what it's defined to do. At the bottom of this message is all the
> output for this command:
> dig +trace ns1.plhhosting.com
>
> What bothers me is there was no error message in this case, whereas the
> following
> commands all finished up with a specific error message:
> dig +trace plhhosting.com
> dig +trace some-random-name.plhhosting.com
> dig +trace onintelligence.org
>
> The message is:
> dig: Couldn't find server 'ns1.plhhosting.com': No address associated
> with nodename.
; <<>> DiG 8.3 <<>> ns1.plhhosting.com @69.93.59.34
; (1 server found)
;; res options: init recurs defnam dnsrch
;; got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 63103
;; flags: qr aa rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0
;; QUERY SECTION:
;; ns1.plhhosting.com, type = A, class = IN
;; AUTHORITY SECTION:
plhhosting.com. 4H IN SOA ns15.websitewelcome.com. root.corvette.websitewelcome.com. (
2004072601 ; serial
8H ; refresh
2H ; retry
5w6d16h ; expiry
1D ) ; minimum
;; Total query time: 221 msec
;; FROM: drugs.dv.isc.org to SERVER: 69.93.59.34
;; WHEN: Thu Feb 16 14:07:37 2006
;; MSG SIZE sent: 36 rcvd: 106
plhhosting.com has a broken delegation.
onintelligence.org has a broken delegation.
> Nonrecursive queries to g.gtld-servers.net show that it does provide
> the glue.
> It seems like dig +trace is being more stringent regarding looking up
> ns1.plhhosting.com as a nameserver than as the answer to my direct
> query.
>
> John Wobus
> Cornell CIT
>
>
>
>
> $ dig +trace ns1.plhhosting.com
>
> ; <<>> DiG 9.2.2 <<>> +trace ns1.plhhosting.com
> ;; global options: printcmd
> . 378229 IN NS J.ROOT-SERVERS.NET.
> . 378229 IN NS K.ROOT-SERVERS.NET.
> . 378229 IN NS L.ROOT-SERVERS.NET.
> . 378229 IN NS M.ROOT-SERVERS.NET.
> . 378229 IN NS A.ROOT-SERVERS.NET.
> . 378229 IN NS B.ROOT-SERVERS.NET.
> . 378229 IN NS C.ROOT-SERVERS.NET.
> . 378229 IN NS D.ROOT-SERVERS.NET.
> . 378229 IN NS E.ROOT-SERVERS.NET.
> . 378229 IN NS F.ROOT-SERVERS.NET.
> . 378229 IN NS G.ROOT-SERVERS.NET.
> . 378229 IN NS H.ROOT-SERVERS.NET.
> . 378229 IN NS I.ROOT-SERVERS.NET.
> ;; Received 436 bytes from 132.236.56.250#53(132.236.56.250) in 22 ms
>
> com. 172800 IN NS A.GTLD-SERVERS.NET.
> com. 172800 IN NS G.GTLD-SERVERS.NET.
> com. 172800 IN NS H.GTLD-SERVERS.NET.
> com. 172800 IN NS C.GTLD-SERVERS.NET.
> com. 172800 IN NS I.GTLD-SERVERS.NET.
> com. 172800 IN NS B.GTLD-SERVERS.NET.
> com. 172800 IN NS D.GTLD-SERVERS.NET.
> com. 172800 IN NS L.GTLD-SERVERS.NET.
> com. 172800 IN NS F.GTLD-SERVERS.NET.
> com. 172800 IN NS J.GTLD-SERVERS.NET.
> com. 172800 IN NS K.GTLD-SERVERS.NET.
> com. 172800 IN NS E.GTLD-SERVERS.NET.
> com. 172800 IN NS M.GTLD-SERVERS.NET.
> ;; Received 508 bytes from 192.58.128.30#53(J.ROOT-SERVERS.NET) in 148
> ms
>
> ns1.plhhosting.com. 172800 IN A 69.93.59.34
> plhhosting.com. 172800 IN NS ns1.plhhosting.com.
> plhhosting.com. 172800 IN NS ns2.plhhosting.com.
> ;; Received 116 bytes from 192.42.93.30#53(G.GTLD-SERVERS.NET) in 95 ms
>
>
--
Mark Andrews, ISC
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE: +61 2 9871 4742 INTERNET: Mark_Andrews at isc.org
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