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[銴鋆賡包
頝唾唳摰璅撅
璅銝
潸” 2016-4-15 12:34:32 | 芰閰脖 撣 |摨閬 |梯璅∪
隞乩:
9 P8 M. d' D1 l/ s5 c/ V0 _http://serverfault.com/questions/275669/ssh-sshd-how-do-i-set-max-login-attempts8 T$ }6 Q0 |% F' s+ f# c9 Y. M
http://www.cnblogs.com/taosim/articles/3134394.html8 _  [) k* T# J8 p. m; c
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1) /etc/ssh/sshd_config乩銝銵
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  1. MaxAuthTries 1
銴鋆賭誨蝣

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2) 券脩怎乩閬# i, i0 ^4 d( N
  1. iptables -N SSHATTACK5 K5 V) K7 c8 T7 V5 y3 p2 d! B
  2. iptables -A SSHATTACK -j LOG --log-prefix "Possible SSH attack! " --log-level 7
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  3. iptables -A SSHATTACK -j DROP
銴鋆賭誨蝣

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" F" L5 E5 z& h7 Q3 ]" H3) /var/log/syslog 閫撖航賜ssh餅6 P3 |- k5 c) o) U( N% }
  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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