google GAE ゾーンリスト@DDoS対策
#!/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/11149470/google-app-engine-list-of-ip-addresses