[Dev] [GNUnet-developers] Collecting data to demonstrate TCP ISN-based port knocking

[hellekin]

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On 05/15/2014 02:56 AM, Christian Grothoff wrote:
> Hi all,
> 
> We are trying to get a port-knocking extension into the Linux kernel,
> which would be useful to obscure TCP services -- such as GNUnet or
> Tor Bridges, and could use your help to collect data to help convince
> the Linux people to adopt the latest patch.
> 
> As Knock uses two fields in the TCP header in order to hide information
> and we explicitly want to be compatible with machines sitting in
> typical home networks, we need to make sure that this information
> doesn't get corrupted by the majority of NAT boxes out there. We thus
> created a program which tests if Knock would work in your environment.
> It would be great if some of you were able to execute the program on
> your machines in order to help us to get an estimation of if Knock one
> day could be used in a large scale.
> 
> You can find sources, binaries and a more elaborate description here:
> https://gnunet.org/knock_nat_tester
> Technical details about Knock and a (somewhat outdated) research paper
> as well as kernel patches are provided here:
> https://gnunet.org/knock
> 
> Please help, it should only take a minute to download & run the code.
> 
> Thanks!
> 
> Julian & Christian
>
*** Hi, forwarding this to Emulatorman and the Parabola/GNU/Linux-libre
developers as they were the first ones to include the Knock patch to the
Linux kernel.

Cheers,

==
hk

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