injecting a temp entry into dns cache

[Eliezer Croitoru]

Hey Slava,

You can use a small DNS proxy that will forge only this specific record 
while for others it will just pass it.
By adding a forward DNS zone and add the proxy as the forward DNS server.

This is *not* recommended but these are the tools you have.
If the DNS proxy is not the well written your users will have troubles.

On 2/2/2013 11:41 PM, Veaceslav Revutchi wrote:
> There is a credit union website that our users access from work and
> their dns has been broken for the past few days where the www. version
> works,  but the plain name (without the www.) points to some old IP
> that's not responding. Tried to call them and all I got was that they
> know they have some kind of problem, but they ask users to type www.
> in their browser until it's resolved.
>
> In situations like this I would like to be able to inject an entry
> into the cache on our recursive resolvers and point it to the correct
> IP until the domain
> owner fixes the problem (poison my own cache so to speak). Is this
> something that can be done with bind without having to create a zone
> for the broken domain and make our servers act as authoritative for
> it?
>
> Thank you,
> Slava

-- 
Eliezer Croitoru
http://www1.ngtech.co.il