On Mon, Dec 25, 2000 at 01:49:26PM -0800, Ian Clarke wrote:
> > > The entire Freenet mechanism depends upon the "path compression" effect
> > > which you get when data is requested, however (as was pointed out the last
> > > time this was suggested) with this mechanism this path compression would
> > > not occur.
> > Freenet does not rely on path compression. Path compression optimizes
> > Freenet by making it closer to being fully connected.
>
> Yes, and without this optimization Freenet *wouldn't be able to scale*.
> I don't know how you define it, but that certainly fits my definition of
> "depends upon".
>
> > Inside the cluster
> > it's fully connected anyway. Outside of the cluster, path compression
> > happens between normal nodes and cluster gateways.
>
> Er, so if all requests for information pass through a cluster gateway -
> given that bandwidth is likely to be the scarce resource rather than
> storage space, why have any of the other nodes in the first place? This
> just creates a bottleneck.
>
> So it scans all 64,000 or whatever ports on every possible IP address,
> doing a DH key-exchange on each one? Hmmm, yeah, that will work!
>
> > > I think that it will always be possible to "fish" for IP addresses
> > > (ie. build up a list of Freenet nodes but not in any directed
> > > manner), but the likelihood that for any given IP address it will be
> > > possible to shut it down is slim. It would need to be on an ISP which is:
> >
> > Let's say you're the Chinese government instead. The chance of shutting
> > down a Freenet node if you find one would be 100% if you decided that
> > Freenet nodes were bad.
>
> Oh really? So the Chinese government discovers that I am running a
> Freenet node. What do they do? They might be able to shut down a node if
> they happened to be fishing and catch an IP address within China, however
> the vast majority of Freenet nodes will not be within China meaning that
> even if they shut-down *every* Chinese Freenet node they would have no
> significant effect on the network - meaning that there is little point in
> them even trying.
Your ISP will *normally* kick you off if they get a complaint. Only spineful
ISPs like Demon would even try in the past, and Demon a) wouldn't resist
anyone now and b) doesn't provide cable/ADSL. ADSL can't run freenet anyhow
as they use NAT on many services; Cable should be able to, but it is against
the AUP. So when I get a cable modem, I won't be able to run a freenet node.
Having cable modem internet access most likely matters much more to most
people than running a freenet node.
>
> > Except if you can't tie a user to an IP address, of course, but you can in
> > many schemes. For instance if you keep logs of your DHCP transactions then
> > it's not a big deal, even on cable.
>
> Er, bypassing DHCP is a very easy measure to take if this is your concern.
And illegal.
>
> Ian.
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