Of course, anycast would have solved this issue by allowing one to add/remove a server from a properly configured environment without affecting the clients...
> On 03/01/2014 18:00, wbr...@e1b.org wrote: >> From: Mark Andrews <ma...@isc.org> >>> After that specify a final date for them to fix their machines by >>> after which you will send NXDOMAIN responses. Sometimes sending a >>> poisoned reponse is the only way to get peoples attention. >>> >>> zone "." { >>> type master; >>> file "empty"; >>> }; >>> >>> empty: >>> @ 0 IN SOA . stop.using.this.nameserver 0 0 0 0 0 >>> @ 0 IN NS . >>> @ 0 IN A 127.0.0.1 >> >> Or really mess with them and answer all A queries with 199.181.132.249 > > It's not a bad idea. I could wildcard all requests to an internal HTTP > server saying that the DNS configuration of the client is deprecated. > > Regards, Bob
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