On Wed, 7 Aug 2013 19:42:07 -0400 Vincent Yu <v@v-yu.com> wrote:
On Wed, Aug 7, 2013 at 5:43 PM, Roman Mamedov <rm@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