Ian:

Pleasure to meet you at the recent ccc in Berlin. As I mentioned to  
you in person, i've been following the developments on and about  
Freenet for some time. I'm really excited about the developments of . 
7, and to help out i'm running it on my server.

Keen to follow developments on this list, and knowing how i might be  
able to help.


regards,

Robert

--
Robert Guerra <rguerra at privaterra.org>
Managing Director, Privaterra <http://www.privaterra.org>





On 3-Jan-06, at 5:18 PM, Ian Clarke wrote:

> Well, if it can be done quickly, and if it would be really hard to do
> it later, then ok.  Generally speaking though, I think we should try
> to avoid adding additional requirements to 0.7.0 given that we really
> need to deploy it ASAP.
>
> Ian.
>
> On 1/3/06, Matthew Toseland <toad at amphibian.dyndns.org> wrote:
>> On Tue, Jan 03, 2006 at 05:59:33PM +0000, Ian Clarke wrote:
>>> Its a good idea, but I think we need to put these ideas on the TODO
>>> list for after 0.7.0.
>>
>> Don't you think the transition would be rather messy? It's not  
>> like it's
>> going to bog us down for months on end; why should we do this later
>> rather than now? (We will have to migrate to the database backed
>> datastore before 0.7.0 ANYWAY, because of memory usage/scale issues).
>>>
>>> Ian.
>>>
>>> On 1/3/06, Matthew Toseland <toad at amphibian.dyndns.org> wrote:
>>>> Freenet is designed to be a meritocracy for content. If somebody  
>>>> inserts
>>>> several gigabytes of pictures of mating chickens, for instance,  
>>>> this
>>>> will only persist if it is popular, or so the theory goes. This
>>>> meritocracy is one of the main principles underlying the moral,
>>>> philosophical and practical aspects of Freenet.
>>>>
>>>> The only problem is this: If an attacker can continue to insert  
>>>> a file,
>>>> he can keep it in the network forever. Inserts don't stop when  
>>>> they find
>>>> the data (for good reasons IMHO), so this is more effective than
>>>> requesting the data. And he doesn't have to push the same data,  
>>>> he can
>>>> just keep inserting random data chunks. He doesn't need to find  
>>>> lots of
>>>> nodes to connect to. These will then be promoted to the top of  
>>>> the LRU
>>>> list, and therefore will push out moderately popular content -  
>>>> or even
>>>> popular content, if he has many links to many nodes and lots of  
>>>> upstream
>>>> bandwidth.
>>>>
>>>> Solution?
>>>> All we have to do is not promote inserted content to the TOP of  
>>>> the LRU
>>>> list. Set it say 3 days ahead of the MRU. This can be done  
>>>> efficiently
>>>> with the new database-backed datastore. Then when it is requested,
>>>> promote it to the top. If it isn't requested, for example if it is
>>>> random junk inserted by Mallory, it will expire in 3 days. We  
>>>> could make
>>>> it 7 days, or some fraction of the overall most-recent to least- 
>>>> recent
>>>> period (check your Environment page, Data Store box; most nodes  
>>>> have at
>>>> least a month between most recent and least recent access time).
>>>>
>>>> This should make flooding attacks considerably harder, and move  
>>>> freenet
>>>> somewhat closer to the meritocratic ideal we claim.
>>>> --
>>>> Matthew J Toseland - toad at amphibian.dyndns.org
>>>> Freenet Project Official Codemonkey - http://freenetproject.org/
>>>> ICTHUS - Nothing is impossible. Our Boss says so.
>>>>
>>>>
>>>> -----BEGIN PGP SIGNATURE-----
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>>>> vteo3spHLTfiFFRh82l03S4=
>>>> =00Cd
>>>> -----END PGP SIGNATURE-----
>>>>
>>>>
>>>> _______________________________________________
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>>>> Tech at freenetproject.org
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>>>>
>>>>
>>> _______________________________________________
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>>
>> --
>> Matthew J Toseland - toad at amphibian.dyndns.org
>> Freenet Project Official Codemonkey - http://freenetproject.org/
>> ICTHUS - Nothing is impossible. Our Boss says so.
>>
>>
>> -----BEGIN PGP SIGNATURE-----
>> Version: GnuPG v1.4.1 (GNU/Linux)
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>> Qbp39e/ew+oUu+JfKkQbs6g=
>> =whFS
>> -----END PGP SIGNATURE-----
>>
>>
>> _______________________________________________
>> Tech mailing list
>> Tech at freenetproject.org
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>>
>>
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