Re: hostmangling in new ircd

What austnet.org <http://austnet.org> does:

* [synfx] (radiostar-8hQ7Dm9bB4B4LZUTKYkyYnZjjERCKxA67bdBIQen8uI@public.gmane.org): Tim
* [synfx] on Virtual World as
vw-28580.iinet.net.au<http://vw-28580.iinet.net.au>

And anyone whose hostname doesn't resolve gets a garbage IP, eg. 
203.206.61.28580.

On 8/23/05, Andy Smith <[email protected]> wrote:
> 
> On Mon, Aug 22, 2005 at 10:39:13AM +0000, Andy Smith wrote:
> > If you have a spare moment could you log in to one of our testnet
> > servers, e.g. strugglers.net <http://strugglers.net> port 7500 and try 
> and break[1] or
> > otherwise defeat[2] the hostmangling that Mark R has put in?:
> >
> > 10:34 -!- grifferz [~andy-zUHCcq+i6BtDM3tNdDN3uDDEoF5KDggSZ+GEbx8BII3YtjvyW6yDsg@public.gmane.org<http://Blitzed-0xb8e84e39.blitzed.eu.org>
> ]
> 
> Ryan pointed out that Blitzed-0xb8e84e39.blitzed.eu.org<http://Blitzed-0xb8e84e39.blitzed.eu.org>could
> possibly be a real existing host, and also that if I were to connect
> as e.g. foo-rcD4agzmKD/[email protected] then my mangled host is going to be
> something like [email protected] which could be registered
> by anyone.
> 
> Can anyone think of a way we could make the hosts into invalid ones?
> Just putting blitzed at the end would do it but then we'd end up
> with hosts like:
> 
> Blitzed-0xb8e84e39.blitzed.eu.org.blitzed
> 
> which when banned by many scripts/clients would give a ban like
> *.blitzed.eu.org.blitzed - doesn't get banned when user is set -q
> again.
> 
> We could change the "-" into an underscore:
> 
> foo@Blitzed_0x12345678.net
> 
> That isn't a valid domain. Still has problems:
> 
> - Although "_" isn't valid in internet hostnames, some broken DNS
> servers do allow it and as a result there are real hosts on the
> internet with "_" in them.
> 
> - Since "_" is technically not valid there may be scripts and
> clients that will not accept that in hostnames.
> 
> What do other networks with masking/mangling do? As far as I can
> see the only way to make completely invalid hosts is to add your own
> TLD on the end.
> 
> 
> -----BEGIN PGP SIGNATURE-----
> Version: GnuPG v1.4.1 (GNU/Linux)
> 
> iD8DBQFDCv37IJm2TL8VSQsRAl84AJ9LkAadNVU9OguhSJJEKwOQFZ74SwCgqruC
> w1YMlzRnEfLsDVIiESGfj4o=
> =N1V5
> -----END PGP SIGNATURE-----
> 
> 
> _______________________________________________
> public mailing list
> public-Hb7ITwsGSD4lroQnaJEqWdi2O/[email protected]
> http://lists.blitzed.org/listinfo/public
> 
> 
>

_______________________________________________
public mailing list
public-Hb7ITwsGSD4lroQnaJEqWdi2O/[email protected]
http://lists.blitzed.org/listinfo/public