[dns-operations] Who Ignores TTLs ?

Mark Andrews marka at isc.org
Fri Feb 18 00:10:14 UTC 2011

In message <4D5D392E.33E4.0097.1 at globalstar.com>, "Crist Clark" writes:
> >>> On 2/17/2011 at 11:25 AM, David Conrad <drc at virtualized.org> wrote:
> > On Feb 17, 2011, at 9:31 AM, Rick Jones wrote:
> >> Mark Andrews wrote:
> >>> It's the apps not the caches that don't respect TTLs.
> >> Well, they can't really.  Certainly not directly.  Getaddrinfo() (or 
> > gethostbyname()) don't give TTL information to the application.  
> > 
> > Yes, the current APIs suck, but I don't think the application should try to

getaddrinfo() is designed to be extendable.  If we really need to
it is possible to add this to getaddrinfo().  The hard part is what
to ttl to set on nis/ldap/hosts derived data.

Mark Andrews, ISC
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE: +61 2 9871 4742                 INTERNET: marka at isc.org

More information about the dns-operations mailing list