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[脩怎] 脩怎撘瑕憟隞逵ail2ban銋摰鋆閮剖

[銴鋆賡包
頝唾唳摰璅撅
璅銝
潸” 2016-4-9 12:53:54 | 芰閰脖 撣 |摨閬 |梯璅∪
砍敺 IT_man 2016-4-9 22:36 蝺刻摩 8 Q: \2 L9 Z3 g( I* [
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啣:
( N( J6 V5 d3 P7 p& B$ f& `; j& M) NCentOS 6.7    爹edHat蝟餃潸穿Fedora蝟颯嚗潸祉鞈閮 /etc/redhat-release嚗
. [  S& b. s: Z( x, D% K5 I1.肘um摰鋆fail2ban. Y8 N) S$ C$ J/ d- j
yum -y install fail2ban   (yum摰鋆甇瑞閮 /var/log/yum 銝准憒閬蝣箄撌脣鋆憟隞塚臭誑剜亥岷閮瑼)' P# K. ~; d& G, q' A
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憒銝餈唳郊撽銝賢鋆fail2ban,暻慶um憿舐內曆啗府憟隞嗥嚗雿閬脣仿甇仿
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yum憟隞嗅澈靘瘙箏閬憒雿摰鋆憟隞嗚嗉望審ail2ban銝虫券閮剔憟隞嗅澈銝哨隞交敹亙急fail2ban憟隞嗅澈atrpms6 S4 N& a- a4 `3 Y* Z! t; E
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隢蝺刻摩 /etc/yum.repos.d/CentOS-Base.repo 嚗2 t! x7 B& R) R& p. a- ?3 H

% u' V# m, Q7 J2 k" yvi /etc/yum.repos.d/CentOS-Base.repo$ I( _+ e, V) P& q4 u0 u- y
冽敺乩誑銝閮剖嚗6 s7 |& I) u! [$ E9 E' \
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[atrpms]
/ Z1 G; d$ K/ z$ H: @' E5 N% oname=Red Hat Enterprise Linux $releasever - $basearch - ATrpms% Z% B  A1 [" @9 c3 Q, |1 }
baseurl=http://dl.atrpms.net/el$releasever-$basearch/atrpms/stable3 w, o* h* P4 T: f) D. B
gpgkey=http://ATrpms.net/RPM-GPG-KEY.atrpms
3 b' F( S6 T( h: e. l3 Ngpgcheck=1
( U) p% e" S; S- {enabled=1
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2. 閮剖fail2ban
; b9 x) b+ }9 n* u4 K銝餉拙閮剖瑼嚗/etc/fail2ban/fail2ban.conf 頝 /etc/fail2ban/jail.conf
9 T. {1 v, P1 Mvi /etc/fail2ban/fail2ban.conf
& q1 i' I0 U; X& ?. k9 ^靽格 logtarget :
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  1. #閮剔
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  2. #logtarget = SYSLOG# j; S# f  O) B5 j. a' @. ~  _4 [
  3. #隤踵游- H! z' n# G9 W7 }* j% [
  4. logtarget = /var/log/fail2ban.log
銴鋆賭誨蝣
vi /etc/fail2ban/jail.conf (fail2ban銝餉閮剖瑼)
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  1. #閮剔
    $ V5 x! i- C, N$ ]" K
  2. #backend = auto 2 ]+ p; F; f: z& m% T
  3. #隤踵游
    / w8 C1 l$ y) q: F
  4. backend = gamin
銴鋆賭誨蝣
gamin烊inux憟隞嗡銝憒蝻箏雿臭誑肘um靘摰鋆摰: Q$ R; m( M) ?) `
  1. [ssh-iptables]( W9 B' t5 U3 g- {8 X& y
  2. #臬血4 m% B2 _, |% [# S# J& G  X
  3. enabled  = true) e% V9 L% d  r: g: F
  4. #瞈曉蝔梧雿輻券閮剔喳  G$ N# u  J# ^0 o1 g3 |
  5. filter   = sshd/ g5 x( z1 s0 L: |, {
  6. #iptables閮剖( w: ^+ S2 m) B4 v' h+ s% e% F
  7. action   = iptables[name=SSH, port=22022, protocol=tcp]% |( b& v5 `5 w6 j* T  M
  8.            #潛餅撖靽∟身摰9 r% t2 O, K. S9 }$ N/ R
  9.            sendmail-whois[name=SSH, dest=xxxx@gmail.com, sender=root@xxxx.com]
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  10. - ^; o* |1 ], Z0 \, y" F! k; R( x
  11. #閬閮瑼
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  12. logpath  = /var/log/secure  q. `" {) i7 q
  13. #擃閰阡航炊甈⊥
    4 l: X, h% C; d8 H1 ?
  14. maxretry = 2/ _$ X  p! ?6 V, m7 j5 I, s) z
  15. #餅嚗-1銵函內瘞訾餅
    . w+ q' T; a" y! Z" M
  16. bantime  = -1
銴鋆賭誨蝣
霈fail2ban啣銝閮剝餅IP閬- l$ {$ K) N2 J& P; d
券閮剔閮剖銝哨fail2ban瘥甈⊿啣賣箏鋡恍餅IP閮剖靘靘隤迎憒餉血箇餃亙仃鋡剌ail2ban嚗暻澆芾fail2ban啣嚗暻潭餉血臭誑蝜潛閰衣餃叫erver
3 \2 k: l0 E9 V  t+ e憒閬霈fail2ban啣嚗銝閮剝餅IP閬嚗靽格 /etc/init.d/fail2ban 批捆
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曉酒tart()憛嚗乩誑銝#閮餉圾閮剖嚗. {$ ^9 `) }2 w2 e4 f. V" p4 u
  1. start() {$ c$ ]' }5 R/ T% K' V4 z; t7 H
  2.     echo -n [        DISCUZ_CODE_3        ]quot;Starting fail2ban: "8 u. R# X6 h6 R! j8 A6 u
  3.     getpid7 S6 k* J8 i* ^4 O: Z
  4.     if [ -z "$pid" ]; then# p+ t% @: W& K; L9 h* O6 K
  5.         rm -rf /var/run/fail2ban/fail2ban.sock # unclean in case of restart fal2ban3 h% e: P, {' Z; g: E% b
  6.         $FAIL2BAN -x start > /dev/null2 W# I, R* t( r/ t& J/ T: b) D: W
  7.         RETVAL=$?! J% L! p. g. V0 \  j" ?% l
  8.     fi: G- W0 V1 ^" R6 a: m. E- a0 i
  9.     if [ $RETVAL -eq 0 ]; then
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  10.         touch /var/lock/subsys/fail2ban: v3 r! N. c! H) i: q  W, C  z
  11.         echo_success* G) |% n+ H( ~) y) q5 [* r9 t
  12.         /sbin/service iptables restart # reloads previously banned ip's
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  13.     else
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  14.         echo_failure
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  15.     fi+ l6 t6 @: V' p( p" i
  16. - e4 H' c4 Z- G+ X$ m" ^
  17.     echo
    # K4 }$ v$ X' s. I1 S$ N5 a$ k
  18.     return $RETVAL
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  19. }
銴鋆賭誨蝣
曉酒top()憛嚗乩誑銝
#閮餉圾閮剖嚗
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  1. stop() {
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  2.     echo -n [        DISCUZ_CODE_4        ]quot;Stopping fail2ban: "
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  3.     getpid
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  4.     RETVAL=$?
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  5.     if [ -n "$pid" ]; then, }; ?! F# A# v& l5 R# |
  6.        /sbin/service iptables save # saves banned ip's- B# `' `8 m7 z$ X
  7.         $FAIL2BAN stop > /dev/null) H9 C3 ^" z- _% ^" [. A+ ?4 x
  8.     sleep 1  N+ B0 u( r6 m
  9.     getpid3 f5 q* H; H; d+ d& [* L
  10.     if [ -z "$pid" ]; then) E- B8 M4 Y4 Q1 n
  11.         rm -f /var/lock/subsys/fail2ban/ l( l1 S& \" @4 i
  12.         echo_success
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  13.     else9 {& [/ P1 e9 ~3 _( o
  14.         echo_failure
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  15.     fi4 w6 z7 Y. R5 q! ?
  16.     else
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  17.         echo_failure
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  18.     fi7 `* U  D1 Z' T% C
  19.     echo2 r4 m' _2 G+ g- n) J- L! C9 \
  20.     return $RETVAL
銴鋆賭誨蝣
3. 閮剖fail2ban璈摨- ?3 k: @4 L9 R- }6 E- X1 n
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chkconfig --add fail2ban
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隞乩 :: \  p2 A3 o0 _2 `- n; w' g" I
http://blog.pulipuli.info/2011/07/centosfail2ban.html  # x  I' V5 i4 e9 f
http://www.vixual.net/blog/archives/2529 ~* l2 C1 ]+ _2 T

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