The "never changes" TTLs are from zones for which the server is authoritative.
Otherwise, the TTL is the decrementing time-in-cash-before-required-refetchng.
hth,
Len
On Thursday, July 31, 2014 12:56 PM, Ray Van Dolson <rvandol...@esri.com> wrote:
Not BIND-related specifically... (though the server below could be
running BIND I suppose).
This seems weird. Why is this authoritative server returning *some*
answers with decrementing TTL's?
$ dig @ns1.dtra.mil dtra.mil NS
; <<>> DiG 9.7.4-P1-RedHat-9.7.4-2.P1.fc14 <<>> @ns1.dtra.mil dtra.mil NS
; (1 server found)
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 34658
;; flags: qr aa rd ra; QUERY: 1, ANSWER: 2, AUTHORITY: 0, ADDITIONAL: 0
;; QUESTION SECTION:
;dtra.mil. IN NS
;; ANSWER SECTION:
dtra.mil. 2002 IN NS ns1.dtra.mil.
dtra.mil. 3359 IN NS ns2.dtra.mil.
;; Query time: 92 msec
;; SERVER: 214.27.180.254#53(214.27.180.254)
;; WHEN: Thu Jul 31 12:47:33 2014
;; MSG SIZE rcvd: 62
$ dig @ns1.dtra.mil dtra.mil NS
; <<>> DiG 9.7.4-P1-RedHat-9.7.4-2.P1.fc14 <<>> @ns1.dtra.mil dtra.mil NS
; (1 server found)
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 22108
;; flags: qr aa rd ra; QUERY: 1, ANSWER: 2, AUTHORITY: 0, ADDITIONAL: 0
;; QUESTION SECTION:
;dtra.mil. IN NS
;; ANSWER SECTION:
dtra.mil. 1999 IN NS ns1.dtra.mil.
dtra.mil. 3359 IN NS ns2.dtra.mil.
;; Query time: 90 msec
;; SERVER: 214.27.180.254#53(214.27.180.254)
;; WHEN: Thu Jul 31 12:47:35 2014
;; MSG SIZE rcvd: 62
Server behaves the same way even if I do the queries without recursion
desired...
Odd.
Ray
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