1; Copyright (C) 2012, 2013 Internet Systems Consortium, Inc. ("ISC") 2; 3; Permission to use, copy, modify, and/or distribute this software for any 4; purpose with or without fee is hereby granted, provided that the above 5; copyright notice and this permission notice appear in all copies. 6; 7; THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH 8; REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY 9; AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT, 10; INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM 11; LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE 12; OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR 13; PERFORMANCE OF THIS SOFTWARE. 14 15 16 17; rate limit response from this zone 18 19$TTL 120 20@ SOA tld2. hostmaster.ns.tld2. ( 1 3600 1200 604800 60 ) 21 NS ns 22 NS . 23ns A 10.53.0.2 24 25; basic rate limiting 26a1 A 192.0.2.1 27 28; wildcards 29*.a2 A 192.0.2.2 30 31; a3 is in tld3 32 33; a4 does not exist to give NXDOMAIN 34 35; a5 for TCP requests 36a5 A 192.0.2.5 37 38; a6 for whitelisted clients 39a6 A 192.0.2.6 40 41; a7 for SERVFAIL 42 43; a8 for NODATA 44a8 A 192.0.2.8 45 46; a9 for all-per-second limit 47$GENERATE 101-180 all$.a9 A 192.0.2.8 48