A large number of "ANY" query type queries

[Stephane Bortzmeyer]

On Wed, Mar 28, 2012 at 04:08:33PM +0800,
 ShanyiWan <wsy at 114.com.cn> wrote 
 a message of 104 lines which said:

> On the DNS server, a large number of "ANY" type queries occur,why?
> The same IP address, produced a large number of requests within a
> very short period of time. Can I block these IPs?

Many technical details at
<https://www.dns-oarc.net/wiki/mitigating-dns-denial-of-service-attacks>