Negative Caching TTL
Jim McAtee
jmcatee at mediaodyssey.com
Tue Dec 16 21:20:08 UTC 2003
Can someone explain to me how to best use negative caching TTL. It's not
clear to me if setting this value in the SOA record affects how our BIND
9.2.3 servers answer queries, or if the value is open to interpretation by
the receiving DNS client.
$TTL 1d
@ IN SOA ns1.modyssey.net. admin.modyssey.net. (
2003101701 ; serial
4h ; refresh
30m ; retry
14d ; expire
15m ) ; negative ttl
With the above, will older BIND servers see the default TTL for records as 1
day or 15 minutes?
More information about the bind-users
mailing list