<html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class="">Short answer:<div class=""><br class=""></div><div class=""><a href="https://i.imgur.com/8QLptcz.png" class="">https://i.imgur.com/8QLptcz.png</a></div><div class=""><br class=""></div><div class="">Around 15000 - 18000 connections I can see with netstat. Even my 300 mbit exit has less and there a a lot of Leaseweb clients connecting to me ... </div><div class="">The interesting thing is, it comes and goes in waves. From 6000 (normal) to 20000 connections within an hour.</div><div class="">Someone doesn't like me very much :(</div><div class=""><br class=""></div><div class="">Markus</div><div class=""><br class=""></div><div class=""><br class=""></div><div class=""><br class=""><div><blockquote type="cite" class=""><div class="">On 22. Dec 2017, at 08:42, Felix <<a href="mailto:zwiebel@quantentunnel.de" class="">zwiebel@quantentunnel.de</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><div class="">Am 22-Dec-17 um 08:25 schrieb niftybunny:<br class=""><blockquote type="cite" class="">Still under heavy attack even with the MaxMemInQueues and 0.3.2.8-rc. I<br class="">need 2 xeons to push 30 mbit as a guard/middle …<br class=""></blockquote><br class="">Do you want to share some information:<br class=""><br class="">Type i)<br class="">(memory exhaustion by too many circuits)<br class="">What is the memory(top) per tor and its MaxMemInQueues ?<br class="">How many circuits per hour in log ?<br class=""><br class="">Type ii)<br class="">(cpu exhaustion by too many 'half open' tor connections)<br class="">Is your number of open files normal (fw in place) and moderate<br class="">connection counts per remote IP ?<br class=""><br class="">Type iii)<br class="">(One fills your server with too many long fat pipes, first ACK and RTT)<br class="">If on Freebsd, is "mbuf clusters in use" (netstat -m) moderate ?<br class="">Do you get "kern.ipc.nmbclusters limit reached" in messages ?<br class=""><br class="">-- <br class="">Cheers, Felix<br class="">_______________________________________________<br class="">tor-relays mailing list<br class=""><a href="mailto:tor-relays@lists.torproject.org" class="">tor-relays@lists.torproject.org</a><br class="">https://lists.torproject.org/cgi-bin/mailman/listinfo/tor-relays<br class=""></div></div></blockquote></div><br class=""></div></body></html>