Checking on DNS secondaries

Sat May 21 22:16:57 PDT 2011

Quoting David Wolfskill (david at catwhisker.org):

> You may find the information at
> <http://www.robtex.com/dns/scruz.org.html> of interest -- in particular,
> <http://www.robtex.com/dns/scruz.org.html#summary> mentions (in part)
> "... We are missing the IP:s of five servers: ns9.scruz.org,
> ns6.scruz.org, ns8.scruz.org, ns7.scruz.org and ns1.scruz.org."

Very odd:  I respect that site highly (especially since it has nice
things to say about linuxmafia.com ;->  ), but I cannot replicate that
result.

IPs in the parent-zone glue records:

$ dig -t ns scruz.org. @$(dig -t ns scruz.org. +short | head -n 1) +nocmd +noquestion +nostats +noanswer

; <<>> DiG 9.6.0-APPLE-P2 <<>> -t ns scruz.org. @ns1.svlug.org. +nocmd
+noquestion +nostats +noanswer
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 62209
;; flags: qr aa rd; QUERY: 1, ANSWER: 6, AUTHORITY: 0, ADDITIONAL: 5
;; WARNING: recursion requested but not available

;; ADDITIONAL SECTION:
ns1.scruz.org.		86400	IN	A	198.144.195.186
ns6.scruz.org.		86400	IN	A	38.102.132.186
ns7.scruz.org.		86400	IN	A	209.237.247.49
ns8.scruz.org.		86400	IN	A	209.133.21.10
ns9.scruz.org.		86400	IN	A	207.111.232.23
$

IPs in the in-domain records:

$ dig -t ns scruz.org. @ns1.scruz.org. +nocmd +noquestion +nostats
+noanswer

; <<>> DiG 9.6.0-APPLE-P2 <<>> -t ns scruz.org. @ns1.scruz.org. +nocmd
+noquestion +nostats +noanswer
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 18908
;; flags: qr aa rd ra; QUERY: 1, ANSWER: 6, AUTHORITY: 0, ADDITIONAL: 6

;; ADDITIONAL SECTION:
ns1.scruz.org.		86400	IN	A	198.144.195.186
ns1.svlug.org.		86400	IN	A	64.62.190.98
ns6.scruz.org.		86400	IN	A	38.102.132.186
ns7.scruz.org.		86400	IN	A	209.237.247.49
ns8.scruz.org.		86400	IN	A	209.133.21.10
ns9.scruz.org.		86400	IN	A	207.111.232.23
$

It's a bit weird that the parent org. zone isn't supplying a glue record
for ns1.svlug.org., though.  I'll have to look into that.