Сейчас еще смотрю в лог и наблюдаю следующее:

[code]
127.0.0.1 [17/Feb/2011:14:35:25 +0000] "-" 400 0 upstream_response_time - msec 1297953325.896 request_time 0.000-->-
75.140.228.5 [17/Feb/2011:14:35:33 +0000] "-" 400 0 upstream_response_time - msec 1297953333.141 request_time 45.830-->-
175.138.195.201 [17/Feb/2011:14:35:40 +0000] "-" 400 0 upstream_response_time - msec 1297953340.269 request_time 0.000-->-
220.255.1.134 [17/Feb/2011:14:35:41 +0000] "-" 400 0 upstream_response_time - msec 1297953341.685 request_time 0.000-->-
216.77.166.183 [17/Feb/2011:14:35:45 +0000] "-" 400 0 upstream_response_time - msec 1297953345.780 request_time 0.000-->-
127.0.0.1 [17/Feb/2011:14:36:25 +0000] "-" 400 0 upstream_response_time - msec 1297953385.139 request_time 0.000-->-
24.63.252.231 [17/Feb/2011:14:37:20 +0000] "-" 400 0 upstream_response_time - msec 1297953440.453 request_time 1.558-->-
24.63.252.231 [17/Feb/2011:14:37:20 +0000] "-" 400 0 upstream_response_time - msec 1297953440.457 request_time 2.585-->-
24.63.252.231 [17/Feb/2011:14:37:20 +0000] "-" 400 0 upstream_response_time - msec 1297953440.457 request_time 1.525-->-
24.63.252.231 [17/Feb/2011:14:37:20 +0000] "-" 400 0 upstream_response_time - msec 1297953440.461 request_time 0.260-->-
127.0.0.1 [17/Feb/2011:14:37:25 +0000] "-" 400 0 upstream_response_time - msec 1297953445.576 request_time 0.000-->-
220.255.1.32 [17/Feb/2011:14:37:58 +0000] "-" 400 0 upstream_response_time - msec 1297953478.341 request_time 0.000-->-
82.19.31.104 [17/Feb/2011:14:37:58 +0000] "-" 400 0 upstream_response_time - msec 1297953478.564 request_time 0.000-->-
82.19.31.104 [17/Feb/2011:14:38:01 +0000] "-" 400 0 upstream_response_time - msec 1297953481.597 request_time 0.000-->-
82.19.31.104 [17/Feb/2011:14:38:02 +0000] "-" 400 0 upstream_response_time - msec 1297953482.598 request_time 0.000-->-
82.19.31.104 [17/Feb/2011:14:38:02 +0000] "-" 400 0 upstream_response_time - msec 1297953482.599 request_time 0.000-->-
127.0.0.1 [17/Feb/2011:14:38:25 +0000] "-" 400 0 upstream_response_time - msec 1297953505.255 request_time 0.000-->-
220.255.2.28 [17/Feb/2011:14:38:33 +0000] "-" 400 0 upstream_response_time - msec 1297953513.381 request_time 0.000-->-
67.8.188.149 [17/Feb/2011:14:38:37 +0000] "-" 400 0 upstream_response_time - msec 1297953517.090 request_time 0.062-->-
88.89.225.124 [17/Feb/2011:14:38:51 +0000] "-" 400 0 upstream_response_time - msec 1297953531.406 request_time 0.000-->-
76.114.40.30 [17/Feb/2011:14:38:56 +0000] "-" 400 0 upstream_response_time - msec 1297953536.513 request_time 0.000-->-
76.114.40.30 [17/Feb/2011:14:38:56 +0000] "-" 400 0 upstream_response_time - msec 1297953536.528 request_time 0.000-->-
76.114.40.30 [17/Feb/2011:14:38:56 +0000] "-" 400 0 upstream_response_time - msec 1297953536.557 request_time 0.000-->-
[/code]

Не сильно много, но достаточно... Странно, видимо не заметил в прошлый раз...