隞乩:
1 Q" z9 Z+ e" `4 ~http://serverfault.com/questions/275669/ssh-sshd-how-do-i-set-max-login-attempts
& a# W9 Z" [8 {% P) s2 D6 T9 ^8 zhttp://www.cnblogs.com/taosim/articles/3134394.html
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7 r6 h, w7 C' k4 h1 v1) /etc/ssh/sshd_config乩銝銵! i% G8 J* I. I( L U4 B+ r
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2) 券脩怎乩閬
. ]: I/ K V* D! |8 _# N- iptables -N SSHATTACK
& |6 _' K5 A! M. ^5 b$ f9 l - iptables -A SSHATTACK -j LOG --log-prefix "Possible SSH attack! " --log-level 7$ k9 v+ J0 t X; q4 o
- iptables -A SSHATTACK -j DROP
銴鋆賭誨蝣
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3) /var/log/syslog 閫撖航賜ssh餅" D1 W) \( j9 m' M
- Dec 27 18:01:58 ubuntu kernel: [ 510.007570] Possible SSH attack! IN=eth0 OUT= MAC=01:2c:18:47:43:2d:10:c0:31:4d:11:ac:f8:01 SRC=192.168.203.129 DST=192.168.203.128 LEN=60 TOS=0x00 PREC=0x00 TTL=64 ID=30948 DF PROTO=TCP SPT=53272 DPT=1785 WINDOW=14600 RES=0x00 SYN URGP=0
銴鋆賭誨蝣
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