about the reference
pengyh at inbox.com
Fri Jul 1 08:47:27 UTC 2011
Please see this reference:
$ dig mydots.net @j.gtld-servers.net
; <<>> DiG 9.4.2-P2.1 <<>> mydots.net @j.gtld-servers.net
;; global options: printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 41902
;; flags: qr rd; QUERY: 1, ANSWER: 0, AUTHORITY: 2, ADDITIONAL: 2
;; WARNING: recursion requested but not available
;; QUESTION SECTION:
;mydots.net. IN A
;; AUTHORITY SECTION:
mydots.net. 172800 IN NS ns1.dnsbed.com.
mydots.net. 172800 IN NS ns2.dnsbed.com.
;; ADDITIONAL SECTION:
ns1.dnsbed.com. 172800 IN A 18.104.22.168
ns2.dnsbed.com. 172800 IN A 22.214.171.124
;; Query time: 196 msec
;; SERVER: 126.96.36.199#53(188.8.131.52)
;; WHEN: Fri Jul 1 16:23:05 2011
;; MSG SIZE rcvd: 106
j.gtld-servers.net gives the reference info about the domain mydots.net.
It says the dns servers for mydots.net is ns[1-2].dnsbed.com, following with two NS's IP addresses.
My question is, when other BIND Cache get this reference, will it use the IP addresses directly?
Or will it use the IP addresses get from the authoritative server?
I ask this because, when the IP addresses get from reference, are different from the ones get from the authoritative server, what will be happened?
Thanks for your kind helps.
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