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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 ' f5 H' t" W  j$ L, j; Q1 o; M

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9 B; f) I' {0 NCentOS 6.7    爹edHat蝟餃潸穿Fedora蝟颯嚗潸祉鞈閮 /etc/redhat-release嚗2 f- g2 \& h! T. a0 ~! o) |
1.肘um摰鋆fail2ban
" z) G( ]) f! w2 t! v0 eyum -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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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# d8 H. j4 |4 w2 _1 _3 f; }/ q+ ^& n
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vi /etc/yum.repos.d/CentOS-Base.repo3 I! z+ e" U. ]
冽敺乩誑銝閮剖嚗
% K/ b% V# ?$ m9 Y* V) [% A  b) l, H4 g' G) `4 \
[atrpms]7 o( N- B0 J  C; Y, N% g
name=Red Hat Enterprise Linux $releasever - $basearch - ATrpms
" X8 r- O% Q7 L8 f, f+ W* z9 F; dbaseurl=http://dl.atrpms.net/el$releasever-$basearch/atrpms/stable1 ?. g/ V. [% p
gpgkey=http://ATrpms.net/RPM-GPG-KEY.atrpms
1 I. W. g0 Y* H( J& b1 c2 Jgpgcheck=13 o8 `7 e6 E& _" f
enabled=1" o3 w% K! e% N/ [9 y2 d

" X2 C9 ?0 ~! z  t. g) V4 L; C5 n- |2. 閮剖fail2ban
3 ^8 a3 {% |+ q8 D* z) w) O銝餉拙閮剖瑼嚗/etc/fail2ban/fail2ban.conf 頝 /etc/fail2ban/jail.conf
& [+ ~4 z  q9 R$ E5 t# \vi /etc/fail2ban/fail2ban.conf
. B0 r$ T5 c' k靽格 logtarget :
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  1. #閮剔, _0 {  r, v  B; Q* G! P$ Z
  2. #logtarget = SYSLOG
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  3. #隤踵游
    & H7 f! A/ G. O+ H; t% 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
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  2. #backend = auto ; q: g) [- I" B' V0 f
  3. #隤踵游# b4 |" ?# Q' ^: \6 p6 P
  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]% @2 Q$ h6 Y; s4 S# N* j
  2. #臬血. j& a1 v8 X2 h% ^" D" S6 Q: g0 e
  3. enabled  = true( v' n8 w2 c$ K; ~9 ~1 d) G
  4. #瞈曉蝔梧雿輻券閮剔喳4 R9 x2 _  N* @3 X( N0 q# V
  5. filter   = sshd& r- f, T  B, _/ w( P
  6. #iptables閮剖! l6 T! n8 ^9 r; _
  7. action   = iptables[name=SSH, port=22022, protocol=tcp]7 G  r3 E! j' v# q9 |" ?
  8.            #潛餅撖靽∟身摰; R) @' Z/ `2 ?8 r2 K( U4 _' |
  9.            sendmail-whois[name=SSH, dest=xxxx@gmail.com, sender=root@xxxx.com]2 G0 A# y- G9 Z  }. C  Y' Z7 A; S

  10. 4 Z# s' a9 U1 R9 S6 r
  11. #閬閮瑼: t/ V5 R; s/ e  p
  12. logpath  = /var/log/secure. v+ h' |- T5 K0 R7 k2 k/ y& i: N
  13. #擃閰阡航炊甈⊥
    # N: v0 V- h, O4 ^
  14. maxretry = 2% T% K- e* v- V' x5 g. W0 W* r2 [
  15. #餅嚗-1銵函內瘞訾餅
    ; F# y2 p- C: S. d
  16. bantime  = -1
銴鋆賭誨蝣
霈fail2ban啣銝閮剝餅IP閬
- F2 h, M; O: D) ]1 @; o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erver3 x7 N$ `: h& \: z3 ~9 ?
憒閬霈fail2ban啣嚗銝閮剝餅IP閬嚗靽格 /etc/init.d/fail2ban 批捆
" T6 @' p% E0 Z9 M* F0 V vi /etc/init.d/fail2ban
+ k( @% S  F( R* _2 P) Y2 t- O3 k. Y曉酒tart()憛嚗乩誑銝#閮餉圾閮剖嚗
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  1. start() {/ J% b* v6 |+ Z8 W2 j" k
  2.     echo -n [        DISCUZ_CODE_3        ]quot;Starting fail2ban: "
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  3.     getpid
    % a6 c+ S7 y/ h1 Z
  4.     if [ -z "$pid" ]; then/ `7 n% ~' O6 A1 x6 r
  5.         rm -rf /var/run/fail2ban/fail2ban.sock # unclean in case of restart fal2ban
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  6.         $FAIL2BAN -x start > /dev/null
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  7.         RETVAL=$?" S3 ~9 Q" q. f1 r  m
  8.     fi
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  9.     if [ $RETVAL -eq 0 ]; then- W5 X4 }# `  J3 ~) c  q  ?
  10.         touch /var/lock/subsys/fail2ban- x9 f* ]/ O* l# U, B
  11.         echo_success2 O8 G% S) g+ ?; [
  12.         /sbin/service iptables restart # reloads previously banned ip's
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  13.     else) Y+ U/ W& u5 g$ }; i% u5 l3 \
  14.         echo_failure
    / Y4 P+ w. u4 o/ w- C1 U; R
  15.     fi  ]& |, d- K# Y# R- w
  16. / p$ S# w; `) Y" m5 O
  17.     echo
    9 r- p4 v7 c8 l
  18.     return $RETVAL
    ! n4 d) e* `  j* \, ~# O: _
  19. }
銴鋆賭誨蝣
曉酒top()憛嚗乩誑銝
#閮餉圾閮剖嚗1 J* f( q/ J2 ]  Q7 y9 U
  1. stop() {
    6 ~( I1 U$ f& c' }2 p
  2.     echo -n [        DISCUZ_CODE_4        ]quot;Stopping fail2ban: "' m3 i2 [* c/ b& H
  3.     getpid' T/ W3 k8 G4 G# Q: ?! [4 i
  4.     RETVAL=$?' p2 p/ D( }0 a# f( e
  5.     if [ -n "$pid" ]; then# `+ x# A* F2 W, `6 x) b5 M
  6.        /sbin/service iptables save # saves banned ip's
    # u- }/ d' }. H, b3 g: T( ~+ n/ C5 }
  7.         $FAIL2BAN stop > /dev/null  M' v4 R$ Y! m# x
  8.     sleep 1
    $ b7 p. e% q* |
  9.     getpid1 M' v) c" M/ q: S) N
  10.     if [ -z "$pid" ]; then4 M: L3 ]( V5 f/ {; ^
  11.         rm -f /var/lock/subsys/fail2ban
    % `7 W+ M! z' C) d8 E8 H0 K- n4 R( m
  12.         echo_success
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  13.     else
    % `! u; t4 [, S3 F% N% L
  14.         echo_failure
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  15.     fi! N- Z* {3 c1 F; m: v* I7 D
  16.     else
    5 B* @' j. h" r6 B- U
  17.         echo_failure
    ! |  P, I0 O; o. E3 ]4 S) u
  18.     fi
    : p1 G& N8 H: |" o* @/ A6 z
  19.     echo2 |1 U/ t1 h5 m* \
  20.     return $RETVAL
銴鋆賭誨蝣
3. 閮剖fail2ban璈摨
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  |  u4 h; h5 K9 A' P" xchkconfig --add fail2ban9 W4 ~4 R3 B# ^: L+ g5 U7 |. C% K

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p.s
3 w# W" R8 S/ ^8 n% Q隞乩 :: v( Y; x8 H$ t( j7 G& F+ o
http://blog.pulipuli.info/2011/07/centosfail2ban.html  & ~) I7 E) }( {  h, `
http://www.vixual.net/blog/archives/252+ {! H: I7 e& x/ F

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