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http://serverfault.com/questions/275669/ssh-sshd-how-do-i-set-max-login-attempts$ T+ ?8 y9 y4 H7 }. F
http://www.cnblogs.com/taosim/articles/3134394.html
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1) /etc/ssh/sshd_config乩銝銵
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2) 券脩怎乩閬" J1 h" c( W7 E' p% X
- iptables -N SSHATTACK8 X8 U, K" K Y
- iptables -A SSHATTACK -j LOG --log-prefix "Possible SSH attack! " --log-level 7 m8 x% s% \$ P6 }7 x/ W
- iptables -A SSHATTACK -j DROP
$ I$ W3 f V' J3) /var/log/syslog 閫撖航賜ssh餅" f: R, \. T q. U
- 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
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潸” 2016-4-15 12:34:32
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