[tor-relays] "NumCPUs 2" or 2 copies of Tor?

[Roman Mamedov]

On Wed, 7 Aug 2013 19:42:07 -0400
Vincent Yu <v at v-yu.com> wrote:

> On Wed, Aug 7, 2013 at 5:43 PM, Roman Mamedov <rm at romanrm.ru> wrote:
> 
> > While we are on this topic, is there a limit on the number of nodes per IP
> > address? I have two nodes running on one IP (different ports), tried
> > adding a
> > third one, but it can't seem to be able to register:
> 
> 
> There is a limit of two relays per IP. From the directory
> specification<https://gitweb.torproject.org/torspec.git/blob/HEAD:/dir-spec.txt>
> (line
> 1773): "Authorities SHOULD 'disable' any relays in excess of 2 on any
> single IP." This limit was implemented in 2007 as a countermeasure to Sybil
> attacks<https://gitweb.torproject.org/torspec.git/blob/HEAD:/proposals/109-no-sharing-ips.txt>

Thanks.

I really think this should be revisited, as IPv4 addresses are now becoming
much more scarce, and on the other hand, 4-6-8 core CPUs are becoming
commonplace. At least raising the limit to 3-4 relays per IP.

-- 
With respect,
Roman
-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 198 bytes
Desc: not available
URL: <http://lists.torproject.org/pipermail/tor-relays/attachments/20130808/9ac80db0/attachment.sig>