[dns-operations] R: R: dns-operationsI: IP change for b.root-servers.net not effective?

Costantino Andrea (Con) andrea.costantino at h3g.it
Wed Oct 25 10:32:25 UTC 2017


Here it's. Note that IPv4 and IPv6 hit different POPs:



[root at MILWH01 ~]# dig   +nsid . @199.9.14.201



; <<>> DiG 9.8.2rc1-RedHat-9.8.2-0.62.rc1.el6_9.4 <<>> +nsid . @199.9.14.201

;; global options: +cmd

;; Got answer:

;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 62025

;; flags: qr aa rd; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 1

;; WARNING: recursion requested but not available



;; OPT PSEUDOSECTION:

; EDNS: version: 0, flags:; udp: 4096

; NSID: 62 32 2d 6c 61 78  (b) (2) (-) (l) (a) (x)

;; QUESTION SECTION:

;.                              IN      A



;; AUTHORITY SECTION:

.                       86400   IN      SOA     a.root-servers.net. nstld.verisign-grs.com. 2017102401 1800 900 604800 86400



;; Query time: 162 msec

;; SERVER: 199.9.14.201#53(199.9.14.201)

;; WHEN: Wed Oct 25 12:30:19 2017

;; MSG SIZE  rcvd: 113



[root at MILWH01 ~]# dig   +nsid . @b.root-servers.net



; <<>> DiG 9.8.2rc1-RedHat-9.8.2-0.62.rc1.el6_9.4 <<>> +nsid . @b.root-servers.net

;; global options: +cmd

;; Got answer:

;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 13106

;; flags: qr aa rd; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 1

;; WARNING: recursion requested but not available



;; OPT PSEUDOSECTION:

; EDNS: version: 0, flags:; udp: 4096

; NSID: 62 34 2d 6d 69 61  (b) (4) (-) (m) (i) (a)

;; QUESTION SECTION:

;.                              IN      A



;; AUTHORITY SECTION:

.                       86400   IN      SOA     a.root-servers.net. nstld.verisign-grs.com. 2017102401 1800 900 604800 86400



;; Query time: 119 msec

;; SERVER: 2001:500:200::b#53(2001:500:200::b)

;; WHEN: Wed Oct 25 12:30:42 2017

;; MSG SIZE  rcvd: 113







-----Messaggio originale-----
Da: Wes Hardaker [mailto:wjhns1 at hardakers.net]
Inviato: martedì 24 ottobre 2017 19:33
A: Costantino Andrea (Con) <andrea.costantino at h3g.it>
Cc: 'Wes Hardaker' <wjhns1 at hardakers.net>; 'dns-operations at lists.dns-oarc.net' <dns-operations at dns-oarc.net>
Oggetto: Re: R: dns-operationsI: IP change for b.root-servers.net not effective?



"Costantino Andrea (Con)" <andrea.costantino at h3g.it<mailto:andrea.costantino at h3g.it>> writes:



> [root at MILWH01 data]# time dig  . ANY @199.9.14.201 | grep b.root



Can you let me know where you're querying from (Italy?) and what node you're hitting (use +nsid with DIG to find out).

--

Wes Hardaker

USC/ISI

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