Hi;
Todd Snyder
tsnyder at rim.com
Thu May 10 12:51:07 UTC 2012
When you do a dig, the TTL is the 2nd column:
;; ANSWER SECTION:
www.google.com. 604800 IN CNAME www.l.google.com.
www.l.google.com. 300 IN A 74.125.225.20
www.l.google.com. 300 IN A 74.125.225.19
www.l.google.com. 300 IN A 74.125.225.18
www.l.google.com. 300 IN A 74.125.225.16
www.l.google.com. 300 IN A 74.125.225.17
Although, it will provide the TTL of the cached record if the record is cached, so it may not be the original TTL.
If you want to know the TTL, you can query the authoritative nameservers directly for the record:
# get their nameservers
# dig google.com NS
;; ANSWER SECTION:
google.com. 345600 IN NS ns4.google.com.
google.com. 345600 IN NS ns1.google.com.
google.com. 345600 IN NS ns3.google.com.
google.com. 345600 IN NS ns2.google.com.
# pick one, and ask for the record you want
# dig @ns4.google.com www.google.com A +norec
;; ANSWER SECTION:
www.google.com. 604800 IN CNAME www.l.google.com.
www.l.google.com. 300 IN A 74.125.225.148
www.l.google.com. 300 IN A 74.125.225.147
www.l.google.com. 300 IN A 74.125.225.144
www.l.google.com. 300 IN A 74.125.225.146
www.l.google.com. 300 IN A 74.125.225.145
Cheers
From: bind-users-bounces+tsnyder=rim.com at lists.isc.org [mailto:bind-users-bounces+tsnyder=rim.com at lists.isc.org] On Behalf Of William Thierry SAMEN
Sent: Thursday, May 10, 2012 8:03 AM
To: bind-users at lists.isc.org
Subject: Hi;
Hi, Bind'ers,
i'm trying to have a TTL of a zone just by typing a command, but i can't seen which command line i can used to have the solution.
Can someone have an idea? is it possible to found that?
PS: The zone file is not created by me. For example, i made a dig +dnssec www.google.fr<http://www.google.fr> and i want to know what is the TTL of www.google.com<http://www.google.com>
not the period of querry.
Thx
--
Cordialement.
Thierry SAMEN.
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