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Date: Fri, 30 Apr 2010 13:20:20 +0300
From: Vaso VV <fuckel@ukr.net>
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Вот вчера вечером сидел и наблюдал на 12-ой консоли, как какие-то 
"аццкие хацкеры" с сербского и венгерского айпишников старательно 
пытаются вломится под рутом через ssh:

Unable to check blacklist for host key 
9f:36:60:a9:f4:46:b4:2c:4a:1b:1e:cc:06:92:79:d8
Unable to check blacklist for host key 
a8:66:49:11:8e:cc:ca:24:f6:05:ba:ef:45:39:25:9f
Failed password for ROOT USER root from 161.53.39.73 port 43235 ssh2
Received disconnect from 161.53.39.73: 11: Goodbye
и
Unable to check blacklist for host key 
9f:36:60:a9:f4:46:b4:2c:4a:1b:1e:cc:06:92:79:d8
Unable to check blacklist for host key 
a8:66:49:11:8e:cc:ca:24:f6:05:ba:ef:45:39:25:9f
Failed password for ROOT USER root from 81.182.200.164 port 3851 ssh2
Received disconnect from 81.182.200.164: 11: Goodbye
- и так много раз.

Я понимаю, что шансов у ребят немного, но вот в душе дискомфорт 
какой-то, да и логи страшно загаживаются:
# grep -ic sshd /var/log/syslog/messages
13954

А как бы сделать так, чтобы после 3-х неудачных авторизаций айпишник 
блокировался?


-- 
WBR........[ ]
TFTHAOT....[x]
AMF........[ ]