I want to talk to DNS directly

[Kevin Darcy]

Brad Knowles wrote:

> At 6:12 PM +0000 7/4/01, M. Richardson wrote:
>
> >  I'm just working on something here for a friend of mine (how suspicious does
> >  that sound ? :) and I'm wondering how I can directly talk to a DNS server ?
>
>         You can use tools like dig, which make use of the resolver
> library.  Alternatively, you can write programs in C, or Perl, or
> some other language that will give you direct access to the resolver
> library.
>
> >  To elaborate, I want to be able to do something like :
> >
> >      telnet ns1.nameserver.com 53
> >          query="nameserver.com"
>
>         Sorry, it doesn't work like this.
>
> >  Any light anybody can shed on this would be REALLY appreciated ?
>
>         Read the _DNS and BIND_ book.  It will give you more information
> on the DNS packet format.  However, I would like to meet the wizard
> that can generate UDP and TCP packets that would use this protocol,
> directly from the command-line.

Nah, even if one were a wizard, one would have to toggle telnet binary mode on,
and the nameserver is going to choke on the negotiation sequence for that...


- Kevin