隞乩:
- g: f5 ]6 u; i- ~' ^http://serverfault.com/questions/275669/ssh-sshd-how-do-i-set-max-login-attempts
; q6 J, {: L+ X$ _1 f, Z" }+ g L6 hhttp://www.cnblogs.com/taosim/articles/3134394.html% P4 m: F, l5 B1 i; v( ]* M) H
# A3 H: S/ E9 X @2 z* L6 ]
1) /etc/ssh/sshd_config乩銝銵6 ? N% Z/ H% ]
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2) 券脩怎乩閬
: B7 E3 s* t) a- iptables -N SSHATTACK
; A& W, d4 V* K0 e - iptables -A SSHATTACK -j LOG --log-prefix "Possible SSH attack! " --log-level 7
9 }/ i1 V, J9 Q' V8 B1 K - iptables -A SSHATTACK -j DROP
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3) /var/log/syslog 閫撖航賜ssh餅
% Q/ k* s/ g; \- 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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