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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
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啣:
! U1 n* g& l! U. v. i1 gCentOS 6.7    爹edHat蝟餃潸穿Fedora蝟颯嚗潸祉鞈閮 /etc/redhat-release嚗
- b9 |4 c) o9 N" p' V4 g0 o/ [1.肘um摰鋆fail2ban
* F: t* }) h! {1 C* f' J8 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)" o$ I$ I4 o8 [$ o' C% l

$ ^0 A1 a6 p$ D0 u' ^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atrpms
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! K3 H) H) f: @0 _. m7 _+ C& @隢蝺刻摩 /etc/yum.repos.d/CentOS-Base.repo 嚗
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vi /etc/yum.repos.d/CentOS-Base.repo! n4 P( ^) k- L$ L% I. L" k7 V0 o
冽敺乩誑銝閮剖嚗8 I( r3 Q) C5 n* [+ k% T$ c2 B, E2 g

* h  _# j: n5 D' Z[atrpms]
! R; ]5 X/ N4 W: Q4 _6 V1 Bname=Red Hat Enterprise Linux $releasever - $basearch - ATrpms
4 P' \' r; t* M- w; j: l5 Jbaseurl=http://dl.atrpms.net/el$releasever-$basearch/atrpms/stable3 a8 r8 q, }6 s$ h" G
gpgkey=http://ATrpms.net/RPM-GPG-KEY.atrpms
, z$ B4 r7 r2 n$ t1 D) H  c% Zgpgcheck=1: Z% i9 }* \" a0 }* a
enabled=1
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2. 閮剖fail2ban
( M1 h5 L3 I' h/ X( M: i/ {" x: I銝餉拙閮剖瑼嚗/etc/fail2ban/fail2ban.conf 頝 /etc/fail2ban/jail.conf
4 \2 e& ]! T- l$ [( \3 mvi /etc/fail2ban/fail2ban.conf: S$ [  d( l* V% L2 `
靽格 logtarget :
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  1. #閮剔+ C! n7 m1 R/ L4 i  ]( I- p
  2. #logtarget = SYSLOG; S8 N4 U# a1 E+ M4 q
  3. #隤踵游
      d9 d% b: Q) l0 i, v
  4. logtarget = /var/log/fail2ban.log
銴鋆賭誨蝣
vi /etc/fail2ban/jail.conf (fail2ban銝餉閮剖瑼)% j5 R; ^* b6 }  g; l0 `. l7 I
  1. #閮剔! @7 _5 ]9 w, e3 W4 [) o
  2. #backend = auto & d; m2 u+ p# \9 B. p( F5 \
  3. #隤踵游% {% X# r) X7 n
  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
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  1. [ssh-iptables]3 m* S, g$ D* K* y; n
  2. #臬血
    $ x8 J- t  }* Z/ B, D7 l
  3. enabled  = true
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  4. #瞈曉蝔梧雿輻券閮剔喳
    4 w6 N, q% g5 p  N0 T" b( T
  5. filter   = sshd, h" K" P1 h4 v8 X4 c8 A: F0 t
  6. #iptables閮剖# S) s% N2 y- F
  7. action   = iptables[name=SSH, port=22022, protocol=tcp]% C* O$ R$ d8 s! E
  8.            #潛餅撖靽∟身摰
    ; O+ d& o  _! l" T# M1 V6 S
  9.            sendmail-whois[name=SSH, dest=xxxx@gmail.com, sender=root@xxxx.com]
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  10. . [5 j( O7 z  N$ x$ O! F
  11. #閬閮瑼
    - p% {6 K2 i& z/ q' q
  12. logpath  = /var/log/secure" V$ f1 k$ D# \# V9 ~& a
  13. #擃閰阡航炊甈⊥, ?, ^' c/ e( D# ~" v
  14. maxretry = 2
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  15. #餅嚗-1銵函內瘞訾餅
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  16. bantime  = -1
銴鋆賭誨蝣
霈fail2ban啣銝閮剝餅IP閬
& j! e6 j9 ~& L1 X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
) r) n1 R/ v5 C, k6 f憒閬霈fail2ban啣嚗銝閮剝餅IP閬嚗靽格 /etc/init.d/fail2ban 批捆3 N- M% v" ~! g2 g$ g0 X2 L) W. d
vi /etc/init.d/fail2ban$ @9 _" Z' x  l4 @& l
曉酒tart()憛嚗乩誑銝#閮餉圾閮剖嚗3 I8 p* d1 i3 P& y. H! I
  1. start() {5 i6 P9 S% R3 j
  2.     echo -n [        DISCUZ_CODE_3        ]quot;Starting fail2ban: "0 q2 E% C  P/ e* ~
  3.     getpid
    1 X% v! x- }$ I0 ]9 X
  4.     if [ -z "$pid" ]; then) \) y( A- i# [# H/ Z* F& H0 h
  5.         rm -rf /var/run/fail2ban/fail2ban.sock # unclean in case of restart fal2ban
    . H1 Z0 e. ]- M% k  q$ o7 v" ?
  6.         $FAIL2BAN -x start > /dev/null
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  7.         RETVAL=$?
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  8.     fi
    2 P% m: Z6 r# X8 k  ^
  9.     if [ $RETVAL -eq 0 ]; then
    / \$ ~+ I& _# U0 n  L, J
  10.         touch /var/lock/subsys/fail2ban
    ' s3 y9 A9 A8 m, R  \; L
  11.         echo_success
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  12.         /sbin/service iptables restart # reloads previously banned ip's7 E4 p8 [5 W+ y: ~/ y7 G
  13.     else
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  14.         echo_failure
    ; v! t! e4 u$ F) S- ?
  15.     fi
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  16. 9 ?, f, E, @, p+ g1 R: E
  17.     echo4 k; S+ q* l, ?# u. P
  18.     return $RETVAL
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  19. }
銴鋆賭誨蝣
曉酒top()憛嚗乩誑銝
#閮餉圾閮剖嚗
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  1. stop() {
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  2.     echo -n [        DISCUZ_CODE_4        ]quot;Stopping fail2ban: "8 o- A# k3 k) r- V8 x( `5 V
  3.     getpid
    ' y, C: o, v' |  x
  4.     RETVAL=$?
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  5.     if [ -n "$pid" ]; then
      c! h# U! _) m+ a  A# X" K
  6.        /sbin/service iptables save # saves banned ip's
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  7.         $FAIL2BAN stop > /dev/null' F/ ~" a" X! u( W/ i
  8.     sleep 1
    , \& f3 R5 @2 `0 N; F2 U2 n
  9.     getpid8 I& k( `2 Q' e( v
  10.     if [ -z "$pid" ]; then0 V3 {% O, [4 j, ?
  11.         rm -f /var/lock/subsys/fail2ban
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  12.         echo_success3 _# c9 I& o$ A  }9 l/ ]
  13.     else
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  14.         echo_failure
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  15.     fi
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  16.     else
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  17.         echo_failure
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  18.     fi; T& x# \( O. I0 J+ f% p) r
  19.     echo( T1 _" i) d( a  [" b# x( a
  20.     return $RETVAL
銴鋆賭誨蝣
3. 閮剖fail2ban璈摨! u9 L! z! ^* E- Q$ q0 ]
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chkconfig --add fail2ban
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p.s
$ }& z; J4 r$ _3 ~0 ^& q( y, A隞乩 :
& a  h- P+ O' Dhttp://blog.pulipuli.info/2011/07/centosfail2ban.html  
* M: \* i8 Q# E! _; P: \$ W2 jhttp://www.vixual.net/blog/archives/252
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