Methods to obtain all the A records of a domain?

[Kevin Darcy]

Did you restrict zone transfers on the *slaves* as well as the master?


- Kevin

Vincent W.S. Tam wrote:

> Dear all,
>
> We're using a BIND 8.2.3 server running under Debian GNU/Linux system. We
> have already blocked domain transfer to limited hosts by adding this entry
> to /etc/bind/named.conf:
>
> options {
>         ......
>         allow-transfer { 127.0.0.1; specified-host1; specified-host2; };
>         ......
> }
>
> However, we found that another ISP can still obtain all the A records of a
> domain we was hosting, when one of our customer switch their DNS hosting to
> another ISP. At least, what A records we have set seems goto that ISP
> already.
>
> Can anyone tell us is there other methods to obtain a domain's A records,
> without using domain transfer? Or, it is impossible, they just simply
> remembered what A records we have setup?
>
> Thank you for your time!
>
> Best Regards,
> Vincent