exchange information using DNS-requests?

I recently started using WLAN (I got my hands on a centrino notebook for
a few days) and I found it quite funny - and I found it quite expensive.

But I noticed that DNS-requests seems to be routed through commercial
accesspoints even if one is not logged on.

So I just started to think if this can be used somehow to exchange small
text-information without paying 10USD per hour.

I remember hearing of a tech-study how to create a whole p2p-network
using dns. This is definitely not what I have in mind. I just like to
have a small toolset that exchanges textsnips via dns.
No question that this is possible and I'd to ask if there already are
some simple tools to do this.


thnx,
peter



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peter pilsl <(E-Mail Removed)> wrote:
> But I noticed that DNS-requests seems to be routed through commercial
> accesspoints even if one is not logged on.

Hmm .. you could do it. Presumably you'd have to use the text records
of DNS tables. You could leave mesages coded with someody elses public
RSA key.

> I remember hearing of a tech-study how to create a whole p2p-network
> using dns. This is definitely not what I have in mind. I just like to
> have a small toolset that exchanges textsnips via dns.

Uh - that is a p2p network, no?

> No question that this is possible and I'd to ask if there already are
> some simple tools to do this.

You will need to know who you are talking to! Once you do, you can
exchange messages by short-ttl text records in your respective dns
zone tables.

Peter

P.T. Breuer wrote:
>
> Uh - that is a p2p network, no?
>

sorry - yes. I should have made myself more clear here p2p currently
is widely associated with napster,gnutella and downloading loads of
music and movies and the paper I was refering was using DNS for
distributing very large files (movies) by encoding to ascii, snipping
and then provide as txt-records or freaky domainnames. I wanted to make
sure, that this is not what I have in mind.

>
> You will need to know who you are talking to! Once you do, you can
> exchange messages by short-ttl text records in your respective dns
> zone tables.
>

Currently I just think about communicating with my server that offers me
serveral text-messages. A index-page

dig index.myserver.com TXT
txt1 : status-report at 15:00
txt2 : ids-alarm at 15:23
txt3 : email from zoi
txt4 : email from zoi

dig txt4.myserver.com TXT
date: 2004-05-10
subject: lacy guy
hi peter,
hanging out at the beach again ??

A daemon just scans a given folder for new messages and perform the
needed changes in the appropriate zones. Maybe its best to use BIND for
it and dynamically change it.

Somebody knows if something like this is already done? In fact I dont
think it will proove useful for real work, but its just a funny idea.

thnx,
peter





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