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sxqvmonadi

Member

Registered: 2018-04-29

Posts: 3

unbound geocities drilling

Sometimes when geocities.com is drilled into unbound an ipv4 server address is returned. Sometimes an ipv6 server address is returned.

;; SERVER: 127.0.0.1

;; SERVER: ::1

$ drill geocities.com @localhost
;; ->>HEADER<<- opcode: QUERY, rcode: NOERROR, id: 36038
;; flags: qr rd ra ; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 0 
;; QUESTION SECTION:
;; geocities.com.	IN	A

;; ANSWER SECTION:
geocities.com.	889	IN	A	98.139.206.27

;; AUTHORITY SECTION:

;; ADDITIONAL SECTION:

;; Query time: 0 msec
;; SERVER: 127.0.0.1
;; WHEN: Sat Apr 28 20:55:10 2018
;; MSG SIZE  rcvd: 47
$

If drill is run with the interface option (-I), the server address is consistent:

$ drill -I ::1 geocities.com @localhost
...
;; SERVER: ::1
...

$ drill -I 127.0.0.1 geocities.com @localhost
...
;; SERVER: 127.0.0.1
...

What determines whether the ipv4 interface is the queryer or the ipv6 interface is the queryer?

Last edited by sxqvmonadi (2018-04-29 05:16:33)