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这些是什么样的条目

tag-icon • tag-icon linux apache-2.2
这些是什么样的条目 
65.181.122.21 - - [24/Mar/2013:10:33:28 -0400] "-" 400 0 "-" "-"
109.228.81.72 - - [24/Mar/2013:10:33:42 -0400] "-" 400 0 "-" "-"
92.26.105.90 - - [24/Mar/2013:10:33:54 -0400] "-" 400 0 "-" "-"
92.26.105.90 - - [24/Mar/2013:10:33:54 -0400] "-" 400 0 "-" "-"
92.26.105.90 - - [24/Mar/2013:10:33:54 -0400] "-" 400 0 "-" "-"
92.26.105.90 - - [24/Mar/2013:10:33:54 -0400] "-" 400 0 "-" "-"
174.57.127.57 - - [24/Mar/2013:10:34:07 -0400] "-" 400 0 "-" "-"
174.57.127.57 - - [24/Mar/2013:10:34:07 -0400] "-" 400 0 "-" "-"
174.57.127.57 - - [24/Mar/2013:10:34:07 -0400] "-" 400 0 "-" "-"
87.250.112.82 - - [24/Mar/2013:10:34:10 -0400] "-" 400 0 "-" "-"
87.250.112.82 - - [24/Mar/2013:10:34:16 -0400] "-" 400 0 "-" "-"
75.9.96.255 - - [24/Mar/2013:10:34:20 -0400] "-" 400 0 "-" "-"
39.48.21.192 - - [24/Mar/2013:10:34:20 -0400] "-" 400 0 "-" "-"
39.48.21.192 - - [24/Mar/2013:10:34:20 -0400] "-" 400 0 "-" "-"

这是一种 GET 洪水吗？

有没有什么办法可以 grep 所有 IP 然后将它们发送到 iptables？

答案1

这通常意味着客户端打开了一个Keep-Alive连接，但在收到对其上一个请求的响应后断开了连接。也可能是客户端连接后立即断开连接而未发送任何内容。由于 Web 服务器正在等待某些内容，因此它会记录一个错误请求 (HTTP 400)。这些大多是无害的。

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