How to handle short TTLs?

David Botham DBotham at OptimusSolutions.com
Thu Oct 7 19:08:01 UTC 2004


bind-users-bounce at isc.org wrote on 10/06/2004 09:00:59 PM:
> We've been getting complaints that web browsers time out when
> they are attempting to access finance.yahoo.com.  The problem
> seems to be that that name resolves to a CNAME and an A record
> that both have short TTLs:

Yahoo uses Akimai.  What you are seeing is their global load balancing. 
Not much you can do about that.

> 
>   finance.yahoo.com   300 IN   CNAME   finance.yahoo2.akadns.net
>   finance.yahoo2.akadns.net   60 IN   A   216.109.119.250
> 
> Consequently, they are never in our DNS cache when the user browses
> to that web site.  When I test the lookup by hand, it does take
> five or ten seconds for the response to appear.  What can be done
> about this?  We are running the BIND 8.3.3 version that is shipped
> with recent Solaris 9 releases.
> 
> 
> -- 
> -Gary Mills-    -Unix Support-    -U of M Academic Computing and 
Networking-
> 




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