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Re: [tor-relays] Intrusion Prevention System Software - Snort or Suricata
Hello,
I'm the ISP technician who is negotiating with Paul who started this thread. I just read this whole discussion and I think that there are few things which need to be mentioned.
The threat of blocked subnet is real. It happened once to us and we don't want to experience that anymore. Imagine a few hundreds angry customers, who are bombing your support and writing all over the internet about your awful services. The worst thing is, that you can't do anything about it, but wait to some authority to confirm your delist request. Then you spend few days/weeks searching the newly created discusion threads and keep explaining what happened. That costs a lot of money and energy. The prevention is the best solution.
Nowadays IPS can be handled by the owner to filter just what he wants to be filtered. It's not a rocket science. We are using IPS for our webhosting and mailserver segment and I can say it can save work of 2-3 people, who would otherwise constantly write to clients to put some hotfix to their system / change their password / etc.
It would be fine, if you start seek for solution how to stop malicious activity comming out of the tor exit nodes and stop seeking reasons why not to do that.
Freedom is very important to me, but freedom of one ends where the other begins.
Petr
100% agreed.
Just let us kick out the bots ...
Offending/Source IP: 95.85.45.159
- Issue: Source has attempted the following botnet activity:
Semalt Referrer Spam Tor Exit Bot
I am not in for free speech for bots and anything without a pulse.
markus
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Unwanted and or Abusive Web Requests:
Offending/Source IP: 95.85.45.159
- Issue: Source has attempted the following botnet activity:
Semalt Referrer Spam Tor Exit Bot
- Block Type: New Ban
- Time: 2016-10-04 00:33:54-07:00
- Port: 80
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(KHTML, like Gecko) Chrome/37.0.2062.120 Safari/537.36
2016-10-04 18:46 GMT+02:00 Moritz Bartl <moritz@xxxxxxxxxxxxxx>:
> On 10/04/2016 06:23 PM, Tristan wrote:
>> Wouldn't it be interesting if we could set up some kind of central "Tor
>> Abuse Center" where all the complaints go, and all the relay operators
>> can help respond to them. I suppose it would be pretty chaotic though...
>
> We actually discussed this briefly again at the recent Tor developers
> meeting, and it comes up every once in a while. It's an interesting
> thought experiment, and it would not take much to turn ourselves into an
> Abuse Management provider. I've seen this actually exists in the
> commercial space.
>
> One thing that makes it hard is that there's no assurance that someone
> is really only running an exit on a certain IP address; even if the
> Abuse Management Service verified that that IP address was a Tor exit at
> that point in time, it cannot in all honesty state that in fact the exit
> relay process caused a particular network activity or not.
>
> I do think we can operate this "in good faith", and we simply cannot set
> it up in a way that we can make it impossible to misuse.
>
> Still, this will not help in this (and related) cases: I have not yet
> seen proven cases where the reputation of the netblock was endangered,
> but if an ISP is afraid of that, there's no good way to cooperate. An
> IDS is their obvious suggestion, which just shows that they don't
> understand how Tor works. I argue strongly against deploying such
> systems on Tor exits. It will mess up more than it does good, and it
> won't be able to reliably detect *and block* bad behaviour.
>
> --
> Moritz Bartl
> https://www.torservers.net/
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