DoSのip-rangeを調べたいときはここでIP検索すると所属レンジ一覧が出るhttp://whois.arin.net/ui

#!/usr/bin/perl for my $host (`dig -t txt _cloud-netblocks.googleusercontent.com` =~ m@include:([^ ]+)@gim){ for my $zone (`dig -t TXT $host @ns1.google.com` =~ m@ip4:([^/]+/\d+)@gim){ print "$zone\n"; } }http://stackoverflow.com/questions…

wget -qO - https://forums.aws.amazon.com/ann.jspa?annID=1701 | grep -Eoh "[0-9.]+{4}/[0-9]+" http://maxbeatty.com/blog/2012/06/finding-amazon-s3-region-ip-ranges/

echo 'kern.maxfiles=65536' | sudo tee -a /etc/sysctl.conf echo 'ulimit -n 65536' | sudo tee -a /etc/profile echo -e 'limit maxfiles 8192 20480\nlimit maxproc 1000 2000' | sudo tee -a /etc/launchd.conf でreboot再起動。