I'm having thousands of queries a domain isc.org and this increases my cpu percentage to 100%. That may be happening and how I can control this? is an attack? attachment of the log I made an update to version 9.9.2-P2 as recommended but still continuo

[Matus UHLAR - fantomas]

On 15.04.13 16:13, Denis Laventure wrote:
>I'm having the same problem but for those domains...
>
>   hao.360.cn.
>   openboxcdn.mobilem.360.cn.
>   xliar.com.
>   www.so.com.
>   www.baidu.com.
>   www.360.cn
>   down.360.cn
>   www.hao123.com
>
>15-Apr-2013 15:00:08.485 security: info: client 117.21.187.20#52538: view external: query (cache) 'hao.360.cn/A/IN' denied

Aren't thosedomains pointing their NS onto your nameserver? What's your IP,
if it's not secret?

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