DNS Ports

[Kevin Darcy]

Jonathan de Boyne Pollard wrote:

> DH> I know DNS uses UDP to send and get data.
>
> JdeBP> You need to un-learn this, because it is wrong.
>
> KD> Participants in the DNS protocol *do* use UDP to send and
> KD> get data. Every single example in your web page opens up
> KD> holes for UDP. So in what sense is the original poster
> KD> "wrong"; what, specifically, do they need to "un-learn"?
>
> He needs to un-learn
>
>         DH> DNS uses UDP to send and get data.
>
> which is wrong,

No, it's not "wrong" any more than "roses are red" is "wrong". At worst,
it's incomplete (roses can also be white, yellow, etc.).

In any case, were just debating semantics at this point. The original
poster needs to appreciate the importance of TCP to DNS, I think we both
agree on that. I just don't think it helps matters to label their
incomplete understanding/knowledge as "wrong"...


- Kevin