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頝唾唳摰璅撅
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潸” 2016-4-15 12:34:32 | 芰閰脖 撣 |摨閬 |梯璅∪
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http://serverfault.com/questions/275669/ssh-sshd-how-do-i-set-max-login-attempts( L7 p! z& R3 n; o2 M5 r2 g1 K
http://www.cnblogs.com/taosim/articles/3134394.html& R; r; Z2 @. o2 i6 k

9 e& Q# N# t8 I- n- O6 W5 t1) /etc/ssh/sshd_config乩銝銵
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  1. MaxAuthTries 1
銴鋆賭誨蝣
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  1. iptables -N SSHATTACK7 X" T* h$ k: j1 T) M* f  W
  2. iptables -A SSHATTACK -j LOG --log-prefix "Possible SSH attack! " --log-level 7+ h9 A& A" a; x4 }  r
  3. iptables -A SSHATTACK -j DROP
銴鋆賭誨蝣
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3) /var/log/syslog 閫撖航賜ssh餅% e: M9 y" I, l2 X- Y: @
  1. 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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