谁能帮解读一下[error] [client 175.25.246.144] File

最近服务器CPU占用100%，输出的后台日志有，如下内容，谁能帮解读一下。
似乎是某客户端读取本网站的帖报出的错误日志，referer均为gomei.net的帖子。client标识的IP均ping不通。

[Tue Dec 03 17:57:04 2013] [error] [client 175.25.246.144] File does not exist: /alidata/www/mywebsite/images, referer: http://www.gomei.net/bbs/index.php
[Tue Dec 03 17:57:19 2013] [error] [client 175.25.246.144] File does not exist: /alidata/www/mywebsite/images, referer: http://www.gomei.net/bbs/thread-48528-1-1.html
[Tue Dec 03 17:57:19 2013] [error] [client 175.25.246.144] File does not exist: /alidata/www/mywebsite/images, referer: http://www.gomei.net/bbs/thread-48528-1-1.html

另在日志文件中搜索register，搜索出大量如下日志，似乎为注册机访问产生的：
[Tue Dec 03 19:42:37 2013] [error] [client 27.36.211.176] script '/alidata/www/mywebsite/register.php' not found or unable to stat, referer: http://wowo.5ixtd.com/
[Tue Dec 03 19:42:42 2013] [error] [client 27.36.211.176] script '/alidata/www/mywebsite/reg.php' not found or unable to stat, referer: http://wowo.5ixtd.com/register.php
[Tue Dec 03 19:44:30 2013] [error] [client 27.36.211.176] script '/alidata/www/mywebsite/register.php' not found or unable to stat, referer: http://5ixtd.com/bbs/
[Tue Dec 03 19:44:35 2013] [error] [client 27.36.211.176] script '/alidata/www/mywebsite/reg.php' not found or unable to stat, referer: http://5ixtd.com/bbs/register.php
[Tue Dec 03 19:53:03 2013] [error] [client 111.164.61.130] script '/alidata/www/mywebsite/register.php' not found or unable to stat, referer: http://wowo.5ixtd.com/

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谁能帮助解决一下，谢谢！

这些无需解决，只是别人的一些扫描而已，而你没被扫到问题