IP2location's data is not accurate in China. This IP is located in Hong
Kong instead of Shanghai, however it does belong to a IDC registered in
Shanghai named 51idc.com. It is just a (misconfigurated) proxy server
and somebody abused it, ban the address in iptables should work.

On 9/26/2016 05:58, lists@lazygranch.com wrote:
>
> 200 118.193.176.53 - - [25/Sep/2016:17:45:23 +0000] "GET / HTTP/1.1" 847 "-" "Mozilla/5.0 (compatible; Googlebot/2.1; +http://www.google.com/bot.html)" "-"
>
> For the fake googlebot:
> # host 118.193.176.53
> Host 53.176.193.118.in-addr.arpa not found: 3(NXDOMAIN)
>
> IP2location shows it is a Chinese ISP:
> 3(NXDOMAIN)http://www.ip2location.com/118.193.176.53
>
>

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