connlimit per /24. it does more good than evil.
Any guidance on the specifics? Like how many concurrent connections to allow per /24? Not sure what's expected from legitimate user traffic through the relay... don't want to make things worse.
first measure on a good day how many connection per /24 your exit/relay have, excluding these with 1 2 or just 3 connections:
# netstat -tupan | grep ESTABLISHED | grep /tor | awk '{print $5}' | awk -F: '{print $1}' | awk -F. '{print $1"."$2"."$3}' | sort | uniq -c | sort | egrep -v ' 1 | 2 | 3 '
with this information in hand, double the max of it (mine was 10 connections from 188.214.30.0/24):
10 188.214.30
iptables -A INPUT -i eth0 -p tcp -m connlimit --connlimit-above 20 --connlimit-mask 24 -j REJECT --reject-with tcp-reset
cheers.
x9p
connlimit per /24. it does more good than evil.
Any guidance on the specifics? Like how many concurrent connections to allow per /24? Not sure what's expected from legitimate user traffic through the relay... don't want to make things worse. _______________________________________________ tor-relays mailing list tor-relays@lists.torproject.org https://lists.torproject.org/cgi-bin/mailman/listinfo/tor-relays
ps: this was done @ debian. BSD/Solaris/other Unix flavours may need some tweak in the script.
first measure on a good day how many connection per /24 your exit/relay have, excluding these with 1 2 or just 3 connections:
# netstat -tupan | grep ESTABLISHED | grep /tor | awk '{print $5}' | awk -F: '{print $1}' | awk -F. '{print $1"."$2"."$3}' | sort | uniq -c | sort | egrep -v ' 1 | 2 | 3 '
with this information in hand, double the max of it (mine was 10 connections from 188.214.30.0/24):
10 188.214.30iptables -A INPUT -i eth0 -p tcp -m connlimit --connlimit-above 20 --connlimit-mask 24 -j REJECT --reject-with tcp-reset
cheers.
x9p
connlimit per /24. it does more good than evil.
Any guidance on the specifics? Like how many concurrent connections to allow per /24? Not sure what's expected from legitimate user traffic through the relay... don't want to make things worse. _______________________________________________ tor-relays mailing list tor-relays@lists.torproject.org https://lists.torproject.org/cgi-bin/mailman/listinfo/tor-relays
tor-relays mailing list tor-relays@lists.torproject.org https://lists.torproject.org/cgi-bin/mailman/listinfo/tor-relays
tor-relays@lists.torproject.org
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x9p