[tor-relays] Attacker IP database

Bryan Carey z0civic483 at gmail.com
Fri Aug 2 21:25:10 UTC 2013


Thanks everyone for your input! I already had root access disabled via sshd
config. I will look into fail2ban as it sounds like it remedies the problem
I'm having.

@Nick - I'm talking about attacks directed at the node, not going through
it.

Thanks,
Bryan


On Fri, Aug 2, 2013 at 2:04 PM, Marina Brown <catskillmarina at gmail.com>wrote:

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>
> On 08/02/2013 03:18 PM, Bryan Carey wrote:
> > Is there any kind of compiled list of IPs that relay operators can
> > refer to that are known bad IPs (sources of brute force SSH
> > attempts, etc.)? Is there a reason to NOT block (drop) traffic from
> > these IPs?
> >
> > Here are some that I have seen recently trying to brute force
> > common user accounts and root password attempts: 198.50.197.98
> > 220.161.148.178 223.4.217.47 199.187.125.250 175.99.95.252
> > 62.64.83.38 125.209.110.234 37.235.53.172
> >
>
> To block these types of attempts i disable root access in
> /etc/ssh/sshd_conf and i run fail2ban with a very strict ruleset for
> sshd in /etc/fail2ban/jail.conf. Turn the bantime way up and put the
> retries low like 2-3.
>
> Fail2ban adds abusive ip addresses to the iptables in linux. You can
> save the rulesets if you like with a cron job.
>
> - --- Marina
>
>
> > Also, in general what are some good security practices to keep in
> > mind while running a Tor relay?
> >
> > Thanks, Bryan
> >
> >
> > _______________________________________________ tor-relays mailing
> > list tor-relays at lists.torproject.org
> > https://lists.torproject.org/cgi-bin/mailman/listinfo/tor-relays
>
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