National/International link

[Cecilia Cabrera]

> >It goes like this: our LAN has an international link plus a national link.
> >Whenever the international link goes down the DNS servers can't acces to
> >the root servers and don't resolve the names out of his SOA
> >(mydomain.ar and others.mydomain.ar). Figures.
> >YET, since i do have a national link up i would like them to resolve the
> >.ar domains. Specially since the load of so many "unresolvable" requests
> >end up killing my servers until they can't even answer for mydomain.ar
> >(quite a nuisance). 
> >
> >So, my root.zone has some entries for ar. but from what i've read i
> >believe the named doesn't notice them, right? How can i teach him the
> >ar. NSes regardless of the root nameservers? 


> 
> If any of the authoritative servers for .ar allows you to pull zone
> transfers, you could configure your server as a slave.

Doesn't seem likely :/

> 
> Other than that, I don't see a good solution.  The problem is that the TTL
> of the .ar NS records are only 1 hour. 

Not really, it's set to a day (1 hr is the retry time). This leads me the
following: why isn't my NS caching it for 1 day? I'm thinking maybe it's
the size of the cache. Is this configurable?

Thnaks,
Cecilia