隞乩:
6 t/ a7 f5 N, W" x% qhttp://serverfault.com/questions/275669/ssh-sshd-how-do-i-set-max-login-attempts' W3 |0 a, f* R5 [
http://www.cnblogs.com/taosim/articles/3134394.html6 `: P! h; d5 h" @7 a
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1) /etc/ssh/sshd_config乩銝銵
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2) 券脩怎乩閬1 x Y' {7 V/ i4 u9 `' {
- iptables -N SSHATTACK
8 ?6 i5 Y1 J: |, q3 B( A& ^2 q8 q - iptables -A SSHATTACK -j LOG --log-prefix "Possible SSH attack! " --log-level 74 n9 ]# \+ V$ U8 \7 w9 m
- iptables -A SSHATTACK -j DROP
3 `6 O- G9 c1 Y0 ^4 V3) /var/log/syslog 閫撖航賜ssh餅 r1 X0 S) Q6 d* J0 o3 u! B
- 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
嗉
鈭
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