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[脩怎] 脫餅撟曄車寞

[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 n; [& |  B( Lhttp://serverfault.com/questions/275669/ssh-sshd-how-do-i-set-max-login-attempts1 Z! K+ D6 m0 o' k$ z; a9 `
http://www.cnblogs.com/taosim/articles/3134394.html# T' Y' h# W: {6 q9 ^
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1) /etc/ssh/sshd_config乩銝銵& j1 U5 Q! x  b, S: O
  1. MaxAuthTries 1
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  1. iptables -N SSHATTACK
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  2. iptables -A SSHATTACK -j LOG --log-prefix "Possible SSH attack! " --log-level 7
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  3. iptables -A SSHATTACK -j DROP
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3 E1 d$ z. j' H3 z9 w, a% B3) /var/log/syslog 閫撖航賜ssh餅3 p. R+ J) v3 z9 m$ n" s" Q9 W3 H3 [
  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
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