[Fwd: RE: Re: re-post: problems umounting samba shares]

[Paul Howarth]

On Sun, 2005-04-03 at 11:17 -0400, David Curry wrote:
> Craig White wrote:
> 
> >On Sat, 2005-04-02 at 15:21 -1000, Warren Togami wrote:
> >  
> >
> >>Craig White wrote:
> >>    
> >>
> >>>this needs to be stopped
> >>>
> >>>sorry to list - I am copying list to encourage everyone else receiving
> >>>these messages to forward them to fedora-list-owner at redhat.com
> >>>
> >>>Craig
> >>>      
> >>>
> >>There is no peter.whalley at uol.com.br subscribed...
> >>
> >>    
> >>
> >----
> >thanks Warren - it's obvious that by posting to the list - you see the
> >problem firsthand and I guess that was what I wanted to achieve - well
> >actually, get you to stop the behavior as it has to violate some rule
> >somewhere despite the fact that it is completely bad form and irritating
> >to anyone who posts here.
> >
> >Craig
> >
> >  
> >
> Is there a chance that the problem lies with fedora-list mail server?  
> It occurs to me that a spam artist may have devised an indirect attack 
> on an anti-spam service.  If fedora-list and other mailing lists with 
> some volume could be hijacked into sending the message to anyone posting 
> to the list, then everyone who is active would receive the message.  
> Some percentage of those active list members would send messages to the 
> ostensible perpetrator trying to stop receipt of further messages.  
> Seems to me that such a scheme would stand a chance of significantly 
> increasing the load on the anti-spam service.

I think it's more likely that someone on the list has a forwarder set up
that forwards to peter.whalley at uol.com.br. Unfortunately the dumb
challenge/response system (I guess the "dumb" is redundant there
actually) doesn't show the full headers of the mail it's responding to
so it's not possible to tell who the actual subscriber is.

Anyone wanting to do a real denial of service attack could do much
better than this.

Paul.
-- 
Paul Howarth <paul at city-fan.org>