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http://serverfault.com/questions/275669/ssh-sshd-how-do-i-set-max-login-attempts
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- e( F6 }4 E3 ~! F* ~) u5 P: `1) /etc/ssh/sshd_config乩銝銵5 L- ]# P/ s3 d8 ^
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- iptables -N SSHATTACK, {6 n8 T7 `& R" m m. i
- iptables -A SSHATTACK -j LOG --log-prefix "Possible SSH attack! " --log-level 7
8 [, F+ Y/ _4 a - iptables -A SSHATTACK -j DROP
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3) /var/log/syslog 閫撖航賜ssh餅
- ^. j# ]5 o Y# {: O9 M6 G+ D- 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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