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From: Sharif Olorin <sio@tesser.org>
To: tor-talk <tor-talk@lists.torproject.org>
In-reply-to: <AM2PR09MB0228A926673B116A340EFA3AFC4F0@AM2PR09MB0228.eurprd09.prod.outlook.com>
References: <AM2PR09MB0228A926673B116A340EFA3AFC4F0@AM2PR09MB0228.eurprd09.prod.outlook.com>
Date: Mon, 28 Sep 2015 10:58:31 +0000
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Subject: Re: [tor-talk] Please help us...
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Hi Colin,

> They are using tor services to generate their multiple ips. Recent exit=
 nodes ips (is that the right terminology?) used on the 27/09/2015 have i=
ncluded:
> =

> [ ... ]

Yep, that's the right terminology.

> I have sent similar emails to the 'abuse' email address I have been
> able to find for these ip networks, will they be able to help us?

They might be. If you email the exit node operators[0] and let them know
you're receiving abusive traffic via the web (port 80/443), and include
the IP address(es) of your forum, they may be able to restrict their
exit policy to block traffic to your server. That said, there are
currently over a thousand exit nodes, most of which allow web traffic,
so this may not be the most efficient solution.

> However, our current problem individual is using your services to
> perpetrate the very oppressive, abusive behaviour that your system is
> designed to help fight. Please let me know if there is anything you
> can do.

Another option is the Tor DNS blocklist[1]. If you have a dedicated
server or VPS you can configure it to reject traffic from Tor exits
(e.g., for Apache[2]). If you don't have a dedicated server or VPS, you
might be able to set this up in the forum software itself (e.g., for
phpBB[3]).

I hope the above is helpful. Once the troll gets bored and goes away, I
hope you'll consider opening up your forum to well-behaved Tor users.

Regards,
Sharif

[0] Most exits have this information on a webpage served from the exit
node IP, e.g., http://92.222.113.177/; you can also often find this
information via atlas, e.g.,
https://atlas.torproject.org/#search/92.222.113.177.

[1] https://www.torproject.org/projects/tordnsel.html.en

[2] https://wiki.apache.org/spamassassin/DnsBlocklists

[3] https://www.phpbb.com/customise/db/mod/advanced_block_mod/

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