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#1 2009-09-06 20:50:02

amingo
新生
註冊日期: 2009-08-26
文章數: 9
目前積分 :   

遇到不斷嘗試LOGIN的IP,該如何阻斷

共試了快1小時,使得CPU使用率飆高
不知有何方法,阻斷這IP

Sep 6 13:15:52 dropbear[7098]: Child connection from ::ffff:203.110.208.68:52577 Sep 6 13:15:54 dropbear[7098]: login attempt for nonexistent user from ::ffff:203.110.208.68:52577 Sep 6 13:15:55 dropbear[7098]: exit before auth: Disconnect received Sep 6 13:15:55 dropbear[7100]: Child connection from ::ffff:203.110.208.68:56815 Sep 6 13:15:57 dropbear[7100]: login attempt for nonexistent user from ::ffff:203.110.208.68:56815 Sep 6 13:15:58 dropbear[7100]: exit before auth: Disconnect received Sep 6 13:15:59 dropbear[7104]: Child connection from ::ffff:203.110.208.68:59941 Sep 6 13:16:02 dropbear[7104]: login attempt for nonexistent user from ::ffff:203.110.208.68:59941 Sep 6 13:16:03 dropbear[7104]: exit before auth: Disconnect received Sep 6 13:16:09 dropbear[7106]: Child connection from ::ffff:203.110.208.68:36058 Sep 6 13:16:12 dropbear[7106]: login attempt for nonexistent user from ::ffff:203.110.208.68:36058 Sep 6 13:16:13 dropbear[7106]: exit before auth: Exited normally





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#2 2009-09-06 22:34:50

hippo
天使
註冊日期: 2008-10-07
文章數: 1562
目前積分 :   20 

Re: 遇到不斷嘗試LOGIN的IP,該如何阻斷

您對外開了port 22, 讓陌生人有機會嘗試登入.
以iptables, netstat設定檢查, 關閉對外不必要的port.



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