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Re: [tor-dev] Tor port restriction option was removed


On 5 Jul 2018, at 20:06, nusenu <nusenu-lists@xxxxxxxxxx> wrote:

Roger Dingledine:
It looks like around 844 Guard relays are listening on port 443 right now,
out of the 1858 available Guard relays.

guard probability for all guards having ORPort on 80 or 443:
45.99%

guard probability per ORPort:

+---------+-------------------+
| or_port | guard_probability |
+---------+-------------------+
|     443 |              44.4 |
|    9001 |              39.1 |
|      80 |               1.5 |
|    9002 |               1.3 |
|    8080 |               1.1 |
|    8443 |               0.9 |
+---------+-------------------+

(onionoo data as per 2018-07-05 07:00 UTC)

(*) Actually, before Tor starts attempting to reach Guards, it first
needs to bootstrap the consensus document from either the directory
authorities or the fallback directory servers -- but they have a pretty
similar distribution of ports they listen on.

unfortunately onionoo does not have fallbackdir data, so I can't
provide the same table as above for fallbacks without
creating it myself first

Here's the list of fallbacks, if you'd like to run a script on it:
https://gitweb.torproject.org/tor.git/tree/src/or/fallback_dirs.inc

The script that selects fallbacks also logs the ports that fallbacks are on.
For the current list, we ran the script twice, and merged the lists:
75/143 = 52% of fallbacks are on IPv4 ORPort 443
49/143 = 34% of fallbacks are on IPv4 ORPort 9001
19/143 = 13% of fallbacks are on other IPv4 ORPorts
18/48 = 38% of IPv6 fallbacks are on IPv6 ORPort 443
15/48 = 31% of IPv6 fallbacks are on IPv6 ORPort 9001
15/48 = 31% of IPv6 fallbacks are on other IPv6 ORPorts

73/139 = 53% of fallbacks are on IPv4 ORPort 443
49/139 = 35% of fallbacks are on IPv4 ORPort 9001
17/139 = 12% of fallbacks are on other IPv4 ORPorts
18/46 = 39% of IPv6 fallbacks are on IPv6 ORPort 443
13/46 = 28% of IPv6 fallbacks are on IPv6 ORPort 9001
15/46 = 33% of IPv6 fallbacks are on other IPv6 ORPorts

T
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