А куда вообще пытаются пролезть? System Logs -> Connections, если что.
В логах по подключениям ничего лишнего нет.
Все почему то в системных логах.
Вот за 3 дня выборка:
Host [46.38.61.5] has been blocked at [sun Dec 23 10:54:28 2012].
Host [88.190.47.150] has been blocked at [sun Dec 23 00:56:15 2012].
Host [186.225.137.2] has been blocked at [sat Dec 22 20:55:47 2012].
Host [85.214.138.222] has been blocked at [sat Dec 22 16:27:25 2012].
Host [85.214.74.81] has been blocked at [sat Dec 22 16:02:02 2012].
Host [8.19.192.208] has been blocked at [sat Dec 22 08:27:53 2012].
Host [87.227.156.238] has been blocked at [sat Dec 22 08:13:50 2012].
Host [112.223.21.203] has been blocked at [sat Dec 22 06:33:48 2012].
Host [61.234.145.74] has been blocked at [sat Dec 22 06:02:14 2012].
Host [200.29.132.82] has been blocked at [sat Dec 22 04:09:33 2012].
Host [202.158.114.31] has been blocked at [Fri Dec 21 19:50:08 2012].
Host [64.106.186.35] has been blocked at [Fri Dec 21 18:45:56 2012].
Host [211.157.139.165] has been blocked at [Fri Dec 21 15:47:17 2012].
Host [111.73.45.183] has been blocked at [Fri Dec 21 14:40:20 2012].
Host [211.71.233.2] has been blocked at [Fri Dec 21 09:31:18 2012].
Host [203.170.78.22] has been blocked at [Fri Dec 21 06:14:59 2012].
Host [15.185.173.65] has been blocked at [Fri Dec 21 02:30:58 2012].