one IP caused Maxclient Maxed out?

here is the senario, this IP 211.97.156.36 caused a lot of error messages on one of my server, and it caused my server reached MaxClients setting which is 512, i have not idea why this was cause, but i found this IP is from PRC.


PHP Code:
[Wed Mar 16 04:33:43 2005] [error] [client 211.97.156.36] request failed: error reading the headers
[Wed Mar 16 04:33:43 2005] [error] [client 211.97.156.36] request failed: error reading the headers
[Wed Mar 16 04:33:43 2005] [error] [client 211.97.156.36] request failed: error reading the headers
[Wed Mar 16 04:33:46 2005] [error] [client 211.97.156.36] request failed: error reading the headers
[Wed Mar 16 04:33:46 2005] [error] [client 211.97.156.36] request failed: error reading the headers
[Wed Mar 16 04:33:46 2005] [error] [client 211.97.156.36] request failed: error reading the headers
[Wed Mar 16 04:33:49 2005] [error] [client 211.97.156.36] request failed: error reading the headers
[Wed Mar 16 04:33:50 2005] [error] [client 211.97.156.36] request failed: error reading the headers
[Wed Mar 16 04:33:59 2005] [error] [client 211.97.156.36] request failed: error reading the headers
[Wed Mar 16 04:33:59 2005] [error] [client 211.97.156.36] request failed: error reading the headers
[Wed Mar 16 04:33:59 2005] [error] [client 211.97.156.36] request failed: error reading the headers
[Wed Mar 16 04:33:59 2005] [error] [client 211.97.156.36] request failed: error reading the headers
[Wed Mar 16 04:33:59 2005] [error] [client 211.97.156.36] request failed: error reading the headers
[Wed Mar 16 04:34:02 2005] [error] [client 211.97.156.36] request failed: error reading the headers
[Wed Mar 16 04:34:02 2005] [error] [client 211.97.156.36] request failed: error reading the headers
[Wed Mar 16 04:34:06 2005] [error] [client 211.97.156.36] request failed: error reading the headers
[Wed Mar 16 04:34:06 2005] [error] [client 211.97.156.36] request failed: error reading the headers
[Wed Mar 16 04:36:09 2005] [error] server reached MaxClients setting, consider raising the MaxClients setting 

i've blocked this IP from APF firewall, should i also set keepalive off?

any suggestion would be much appreciated.

thanks.

 

 

 

 

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