Question and response
Question
dig 117.9.225.104.ptr.anycast.net. NS
Answer
117.9.225.104.ptr.anycast.net. 5 CNAME anycast.net.
anycast.net. 4 NS ns4.hostvirtual.com.
anycast.net. 4 NS ns2.hostvirtual.com.
anycast.net. 4 NS ns1.hostvirtual.com.
anycast.net. 4 NS ns3.hostvirtual.com.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0