Re: [tor-relays] Recent wave of abuse on Tor guards

[Felix <zwiebel@xxxxxxxxxxxxxxxx>]

Am 22-Dec-17 um 08:25 schrieb niftybunny:
> Still under heavy attack even with the MaxMemInQueues and 0.3.2.8-rc. I
> need 2 xeons to push 30 mbit as a guard/middle …

Do you want to share some information:

Type i)
(memory exhaustion by too many circuits)
What is the memory(top) per tor and its MaxMemInQueues ?
How many circuits per hour in log ?

Type ii)
(cpu exhaustion by too many 'half open' tor connections)
Is your number of open files normal (fw in place) and moderate
connection counts per remote IP ?

Type iii)
(One fills your server with too many long fat pipes, first ACK and RTT)
If on Freebsd, is "mbuf clusters in use" (netstat -m) moderate ?
Do you get "kern.ipc.nmbclusters limit reached" in messages ?

-- 
Cheers, Felix
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