I have the same problem here in germany with also two sites. I'm running
an non-exit relay.
So far I can not access the sites "banking.ing-diba.de" and
"www.elster.de" when the tor server is running after some time.
The only thing which helps when I renew my public ip address. Then the
access to the above mentioned sites is posible for some time.
I'm not sure if the sites are blocking by themself or if they are using
some service like cloudflare which does the blocking.
Am 13.06.2023 um 23:18 schrieb secureh...@gmail.com:
I was running a Tor Relay for a while from a Comcast residential,
non-business account up until a couple of months ago with no issues
from Comcast.
I did, however start experiencing issues accessing other commercial
websites from the same Internet address. When I accessed those sites
from a different IP address I had no problem.
Ultimately I determined our IP address was being blacklisted by
certain hosting services who probably grabbed all Tor-related IP
addresses and blocked them as a service to commercial websites. As
this info is readily available it’s easy to deduce this.
From this I’d say running any Tor components from a shared residential
ISP probably isn’t a good recommendation.
On Jun 12, 2023, at 3:13 AM, xmrk2 via tor-relays
<tor-relays@lists.torproject.org> wrote:
I'd like to raise awareness of the Comcast blocking.
As stated in subject, I believe Comcast blocks all traffic between
its customers and public tor relay nodes. That is, the blocking is
not limited to tor-related traffic, all other services / ports on the
tor relay are blocked.
Background: I am running a lightning node, lightning is a layer 2
protocol to scale Bitcoin. Lightning nodes need to be connected to
each other ideally 24/7. I was contacted by the operator of another
Lightning node, complaining that he cannot connect to my node. He is
Comcast customer, I am not. I was also running a tor relay on the
same public IPv4 address.
I am pretty sure that the blocking is done by Comcast and is
triggered by being in public list of tor relays. The blocking
disappeared after I stopped my tor relay and restarted my router
(thus getting a new external IPv4 address). After 1 day, I relaunched
the tor relay, and the blocking reappeared a few hours later. It was
also confirmed by the said operator of the lightning node, who said
there were various rounds of blocking tor, customers complaining and
Comcast lifting the block for some time, only to reinstate the
blocking later.
Comcast thus discourages me and similar people from running tor
relays, or at least forces me to run tor in bridge mode. So this is
an insidious attack on tor. Note that Bitcoin is not particularly
relevant, Comcast is blocking tor nodes, not bitcoin nodes. So even
if you hate Bitcoin, note that the same problem could arise even if
Bitcoin never existed: e.g. a self-hosted web server, whose owner
wants to donate his free capacity to tor by running tor relay. By
doing this, he prevents any Comcast customers from accessing his web
server, and this consequence is not obvious at all.
Any ideas on how to combat this? I was thinking about including some
false positives in tor relay list. Imagine including some Google
servers' IP addresses - Comcast customers suddenly cannot connect to
Google, unless Comcast stops this blocking... or simply whitelists
Google. But those false positives sound ugly and a bit malicious, not
sure it is a good idea.
I already wrote about this publicly, and also wrote a mail to EFF.
Hope I am not spamming, I feel this is quite important issue and am a
bit frustrated by the lack of attention it gets.
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