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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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- p+ ?6 N" q5 x8 j0 y1 O# ?$ yCentOS 6.7    爹edHat蝟餃潸穿Fedora蝟颯嚗潸祉鞈閮 /etc/redhat-release嚗: c! `( S+ \- `/ ~( Y) n
1.肘um摰鋆fail2ban. L# s* i$ Q) e3 O
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)
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/ m# ?+ r6 R, ~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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隢蝺刻摩 /etc/yum.repos.d/CentOS-Base.repo 嚗; x! q9 q! v, k/ M
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vi /etc/yum.repos.d/CentOS-Base.repo, [" v+ H+ ^0 H  O- e
冽敺乩誑銝閮剖嚗9 o1 x: `, E6 n( x$ `
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[atrpms]! [. t& D8 E) \
name=Red Hat Enterprise Linux $releasever - $basearch - ATrpms; S, f" C) x! c7 V! e
baseurl=http://dl.atrpms.net/el$releasever-$basearch/atrpms/stable- z# x. X# |2 o% d# F# w
gpgkey=http://ATrpms.net/RPM-GPG-KEY.atrpms" z/ o+ ]6 v) v* x0 v+ x! v7 K
gpgcheck=11 e& \: g3 \5 h& J1 y# ?
enabled=1
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2. 閮剖fail2ban  m. _) X- n: O9 b# _9 A
銝餉拙閮剖瑼嚗/etc/fail2ban/fail2ban.conf 頝 /etc/fail2ban/jail.conf
' E. \0 V& u5 G$ J* Ovi /etc/fail2ban/fail2ban.conf2 W" ^5 g& i5 l8 F) w* S
靽格 logtarget :+ i6 H1 G/ [3 q+ q0 _; {4 d( ]
  1. #閮剔
    % _+ i! u0 c3 d0 k9 b
  2. #logtarget = SYSLOG
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  3. #隤踵游" d( D# \& e; a9 {8 m& V; [0 k
  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# a; n% @" l" k. W+ W. E
  2. #backend = auto
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  3. #隤踵游
    + U- d. I6 ]5 y2 R
  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]* C. N7 b2 `) p+ e( X
  2. #臬血
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  3. enabled  = true
    # G8 v6 {% G! |% O
  4. #瞈曉蝔梧雿輻券閮剔喳
    : n# d4 Q; \5 O* z  |
  5. filter   = sshd
    : K( [: w/ E4 }5 [' q. E
  6. #iptables閮剖/ B$ T: q  C2 d8 ~: R- E0 A
  7. action   = iptables[name=SSH, port=22022, protocol=tcp]4 {  P3 u+ q, j( J/ y
  8.            #潛餅撖靽∟身摰2 e. Q0 t* @) h" f7 J
  9.            sendmail-whois[name=SSH, [email protected], [email protected]]
      _8 {0 O& i4 W1 N( }

  10. & U# y' q$ X, G. ]2 G' w
  11. #閬閮瑼
    7 h! A' o0 |6 b% w# |7 ~
  12. logpath  = /var/log/secure
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  13. #擃閰阡航炊甈⊥2 Q  u, R, q+ Z  l9 z& o) T
  14. maxretry = 2
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  15. #餅嚗-1銵函內瘞訾餅3 a# e, W2 o( m3 Z
  16. bantime  = -1
銴鋆賭誨蝣
霈fail2ban啣銝閮剝餅IP閬
" h5 u+ K$ t4 v9 H! w3 j2 s' |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 d* \% s" {" C, i憒閬霈fail2ban啣嚗銝閮剝餅IP閬嚗靽格 /etc/init.d/fail2ban 批捆, k/ ~$ m8 [7 _7 c  d( _- ~# o( l  Z! U: y
vi /etc/init.d/fail2ban+ a% l- W, R0 Q. ~' Z
曉酒tart()憛嚗乩誑銝#閮餉圾閮剖嚗
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  1. start() {" G& F* d. O- |' H# F2 d0 l
  2.     echo -n [        DISCUZ_CODE_3        ]quot;Starting fail2ban: "3 ]4 E" L7 T8 ~+ J! z/ r
  3.     getpid
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  4.     if [ -z "$pid" ]; then
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  5.         rm -rf /var/run/fail2ban/fail2ban.sock # unclean in case of restart fal2ban
    & y1 ^6 I- R. h; p$ e, ^
  6.         $FAIL2BAN -x start > /dev/null
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  7.         RETVAL=$?
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  8.     fi
    # x0 v5 `% C0 X2 z- }
  9.     if [ $RETVAL -eq 0 ]; then
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  10.         touch /var/lock/subsys/fail2ban# w) j: S5 F3 \
  11.         echo_success# u$ I; u% O9 `" s. @
  12.         /sbin/service iptables restart # reloads previously banned ip's) E5 W+ L3 b: D2 r
  13.     else' n6 x  |  @, u  [9 z, d, S
  14.         echo_failure) Y* ~4 x* N1 X. }+ A
  15.     fi$ a, X7 h+ q9 D: }+ W; w+ S

  16. 0 v( g* s* t& h* E0 X
  17.     echo
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  18.     return $RETVAL
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  19. }
銴鋆賭誨蝣
曉酒top()憛嚗乩誑銝
#閮餉圾閮剖嚗
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  1. stop() {
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  2.     echo -n [        DISCUZ_CODE_4        ]quot;Stopping fail2ban: "8 H* o2 m9 \0 {
  3.     getpid
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  4.     RETVAL=$?+ t9 J0 Z1 [7 m' \
  5.     if [ -n "$pid" ]; then- a1 X! T. ]  @1 A" n
  6.        /sbin/service iptables save # saves banned ip's
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  7.         $FAIL2BAN stop > /dev/null9 q1 G% L# f2 g+ I2 J1 U2 r+ X3 |
  8.     sleep 1
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  9.     getpid
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  10.     if [ -z "$pid" ]; then9 ~+ I" t' i( I
  11.         rm -f /var/lock/subsys/fail2ban
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  12.         echo_success
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  13.     else
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  14.         echo_failure" O& }. [/ B8 e) d$ X( g
  15.     fi( u% y) W# T4 n. d
  16.     else* w4 ~2 w1 J9 n" F6 I
  17.         echo_failure
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  18.     fi; W$ x- j, {) j
  19.     echo
    " m+ m. ]" u" y( Y2 q/ J
  20.     return $RETVAL
銴鋆賭誨蝣
3. 閮剖fail2ban璈摨
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# [1 H) _4 F, k  N* ichkconfig --add fail2ban
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p.s
& G4 I  c1 ]  O' A3 F: o隞乩 :
7 g. u5 E, L5 E% `http://blog.pulipuli.info/2011/07/centosfail2ban.html  
* S8 [2 ?  ]& ~, S& U. ~8 w, M% Qhttp://www.vixual.net/blog/archives/252: L* A5 W  A2 U' T  z4 l7 A5 |

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