[tor-bugs] #33018 [Core Tor/Tor]: Dir auths using an unsustainable 400+ mbit/s, need to diagnose and fix

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#33018: Dir auths using an unsustainable 400+ mbit/s, need to diagnose and fix
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 Reporter:  arma                       |          Owner:  dgoulet
     Type:  defect                     |         Status:  assigned
 Priority:  Medium                     |      Milestone:  Tor:
                                       |  0.4.3.x-final
Component:  Core Tor/Tor               |        Version:
 Severity:  Normal                     |     Resolution:
 Keywords:  network-health 043-should  |  Actual Points:
Parent ID:                             |         Points:
 Reviewer:                             |        Sponsor:
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Comment (by starlight):

 How about throwing up an iptables recent module rule limiting the maximum
 request rate from any single IP address and seeing if it helps?  My
 observation is botnet abuse often arrives with high intensity from a
 limited number of addresses during a given interval.  Set at a perhaps
 twice the maximum rate expected of a bootstrapping relay.  If it works
 similar logic could be added to the relay logic.  I have a couple of rules
 I'll share privately, though it's hardly rocket science.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/33018#comment:19>
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