I'm not talking about putting this in the network path of an ISP, I'm
talking about an appliance for home use, where grandma can just plug it
in between her PC and her cable modem and magically get no more spam.

C

On Thu, 2002-04-04 at 03:18, Nigel Metheringham wrote:
> On Thu, 2002-04-04 at 12:13, Craig Hughes wrote:
> > On Thu, 2002-04-04 at 01:50, Nigel Metheringham wrote:
> > > I've not played with this since a 2.0 linux kernel, however on that if
> > > you have the transparent proxy code in place - which *terminates* the
> > > connection (so X thinks its talking to Z but is actually talking to Y -
> > > if you want Z involved you have to set up a new connection from Y to Z
> > > and futzing that to make it look like it comes from X would be *very*
> > > hard without deep router magic).
> > 
> > That's what I was afraid of.  I don't think the magic is *that* deep, at
> > least in linux 2.4, you should be able to just read the NAT table to
> > figure out what X was trying to talk to in the first place.  But I was
> > just wondering if there was some more elegant way of doing it.
> 
> The deep magic part comes in making sure that the replies from Z come
> back to you as well - everything else is easy.  The real problem comes
> in because our network engineers get upset at the idea of putting (non
> router) kit in the way of a network path - attached to the side of the
> network with some stuff redirected to it is OK, in the way of means you
> are the single point of failure :-)  [NB the policy routing could cope
> with a dead redirection server too].
> 
> The place to look for this stuff is actually the service clustering
> projects - things like  Wen Song's port redirection stuf (can't remember
> the project name).
> 
>       Nigel.
> -- 
> [ Nigel Metheringham           [EMAIL PROTECTED] ]
> [ - Comments in this message are my own and not ITO opinion/policy - ]
> 
> 


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