много думал.
Кто все эти люди боты? Запросы пустые. Ни метода, ни хоста, ни реферера, вообще ничего. И ответ они получают нулевой длины.
Так чего они все хотят? На DOS-атаку не похоже, запросов мало. Чисто проверить, отвечает ли сервер? А зачем?
83.166.102.105 - - [27/Apr/2014:08:31:26 +0100] - "400" 0 "-" "-" "-" "-"
109.169.239.143 - - [27/Apr/2014:08:37:18 +0100] - "400" 0 "-" "-" "-" "-"
91.78.195.93 - - [27/Apr/2014:08:43:28 +0100] - "400" 0 "-" "-" "-" "-"
188.232.120.56 - - [27/Apr/2014:08:44:17 +0100] - "400" 0 "-" "-" "-" "-"
87.252.227.103 - - [27/Apr/2014:08:50:40 +0100] - "400" 0 "-" "-" "-" "-"
176.193.129.207 - - [27/Apr/2014:09:30:09 +0100] - "400" 0 "-" "-" "-" "-"
176.103.96.134 - - [27/Apr/2014:09:32:43 +0100] - "400" 0 "-" "-" "-" "-"
195.216.210.22 - - [27/Apr/2014:09:34:06 +0100] - "400" 0 "-" "-" "-" "-"
173.21.250.149 - - [27/Apr/2014:09:34:54 +0100] - "400" 0 "-" "-" "-" "-"
213.148.178.1 - - [27/Apr/2014:09:39:50 +0100] - "400" 0 "-" "-" "-" "-"
185.19.21.159 - - [27/Apr/2014:09:40:25 +0100] - "400" 0 "-" "-" "-" "-"
77.58.168.193 - - [27/Apr/2014:09:51:53 +0100] - "400" 0 "-" "-" "-" "-"
77.58.168.193 - - [27/Apr/2014:09:51:53 +0100] - "400" 0 "-" "-" "-" "-"
77.58.168.193 - - [27/Apr/2014:09:51:53 +0100] - "400" 0 "-" "-" "-" "-"
91.67.165.28 - - [27/Apr/2014:09:57:03 +0100] - "400" 0 "-" "-" "-" "-"
93.73.122.214 - - [27/Apr/2014:10:17:04 +0100] - "400" 0 "-" "-" "-" "-"
193.105.175.79 - - [27/Apr/2014:10:19:52 +0100] - "400" 0 "-" "-" "-" "-"
91.67.165.28 - - [27/Apr/2014:10:24:42 +0100] - "400" 0 "-" "-" "-" "-"
128.69.165.46 - - [27/Apr/2014:10:24:43 +0100] - "400" 0 "-" "-" "-" "-"
128.69.165.46 - - [27/Apr/2014:10:24:43 +0100] - "400" 0 "-" "-" "-" "-"
46.53.176.189 - - [27/Apr/2014:10:43:48 +0100] - "400" 0 "-" "-" "-" "-"
Оригинал этой записи в личном блоге.
no subject