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Re: Some questions about the hostlist
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From: |
Christian Grothoff |
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Subject: |
Re: Some questions about the hostlist |
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Date: |
Tue, 6 Jul 2021 10:12:23 +0200 |
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User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.11.0 |
On 06.07.21 00:04, Guilherme Macedo via Mailinglist for GNUnet
developers wrote:
> Hey!
>
> I've a few questions about how the hostlist works, after reading the handbook
> and looking into the source code.
>
> Why the hostlist is tied to a specific versioned subdomain -
> http://v14.gnunet.org/hostlist ?
Because protocol changes may require using a different hostlist for
different versions of GNUnet.
> Could it be made generic like https://gnunet.io/hostlist ?Every time that
> it's updated, it also requires the handbook to be updated too.
> Why it's served through plain http?
For no particular reason, other than the server not yet being setup with
HTTPS support.
> The file doesn't seem to be signed, so how can the network protect itself
> from malicious or rogue nodes?
The hostlist is one way of bootstrapping, the network has other ways to
bootstrap. This is NOT a directory server like in Tor listing all nodes.
> Is the validation being done in some code besides
> https://git.gnunet.org/gnunet.git/tree/src/hostlist ?
No. As I said, this is not a list of all the nodes in the network, and
the hostlist server is no special authority. Anyone can run one, and
offer any subset of the peers.
> What is the purpose of fulcrum.net.in.tum.de in
> https://git.gnunet.org/gnunet.git/tree/src/hostlist/hostlists_learn_peer2.file
> ?
That was simply a peer which used to run GNUnet. It has no particular
meaning, the file is simply a valid hello IIRC.
> Who curates the hostlist?
Nobody, really. It is dynamically generated based on the peers known to
the specific peer serving a hostlist.
> I'm asking because there is a difference between the hosts available in
> http://v14.gnunet.org/hostlist and https://gnunet.io/hostlist .
Which is again by design perfectly acceptable. You can use either or
both hostlists, or offer a third one yourself that is again different.
> Appreciate if someone could point to me specific section in the handbook or
> in the source code that I might have missed, please.
Maybe https://docs.gnunet.org/handbook/gnunet.html#HOSTLIST-Subsystem ?
Happy hacking!
Christian