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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 2 m' ^, y7 ?9 z4 Z

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CentOS 6.7    爹edHat蝟餃潸穿Fedora蝟颯嚗潸祉鞈閮 /etc/redhat-release嚗" K. t7 x: M7 `, h& \, d
1.肘um摰鋆fail2ban: t( q1 Z2 K7 o2 E
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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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8 L- B/ X- Z! A  ~; f  Q

! m) Z0 f. q, Q4 C% ^  t7 d% xyum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
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; i) d# p% ]6 V: V2 yvi /etc/yum.repos.d/CentOS-Base.repo4 S! q, b9 q: X2 k
冽敺乩誑銝閮剖嚗
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- k0 `$ G7 @6 P# X8 Y6 s; F5 z[atrpms]4 b* t7 N6 l$ u6 d7 o) G- j
name=Red Hat Enterprise Linux $releasever - $basearch - ATrpms
$ A8 }3 F- g$ C+ R6 |( _5 P4 Ebaseurl=http://dl.atrpms.net/el$releasever-$basearch/atrpms/stable6 n$ ?+ i2 ^  r3 v: G
gpgkey=http://ATrpms.net/RPM-GPG-KEY.atrpms0 K: w/ f% x) }' m, A3 Q' r
gpgcheck=15 D4 O% i% E3 w( u* u; N7 ]9 P
enabled=1' q4 Y: A& A8 j7 Z
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2. 閮剖fail2ban* t' }! _! ~- J6 n
銝餉拙閮剖瑼嚗/etc/fail2ban/fail2ban.conf 頝 /etc/fail2ban/jail.conf
8 F; p( `0 a* wvi /etc/fail2ban/fail2ban.conf
6 H8 t  c) O) [. n2 w  P靽格 logtarget :
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  1. #閮剔$ a! ^7 S+ v4 x0 x0 e
  2. #logtarget = SYSLOG3 A, m. Z: r' y. Y
  3. #隤踵游
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  4. logtarget = /var/log/fail2ban.log
銴鋆賭誨蝣
vi /etc/fail2ban/jail.conf (fail2ban銝餉閮剖瑼)5 ]9 R7 q) ^/ I: u( _* v7 ^5 h
  1. #閮剔3 R& V( \9 X9 [4 R
  2. #backend = auto 0 t' D& v4 C# ?. {' N+ x# Z
  3. #隤踵游
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  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  f& S$ q. p6 N. g- c
  1. [ssh-iptables]- i" V2 s. X2 V3 c' l0 j+ [
  2. #臬血
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  3. enabled  = true
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  4. #瞈曉蝔梧雿輻券閮剔喳, n( f7 X: p& f
  5. filter   = sshd4 J' l4 ]2 R7 @2 L; c0 ?
  6. #iptables閮剖
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  7. action   = iptables[name=SSH, port=22022, protocol=tcp]
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  8.            #潛餅撖靽∟身摰
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  9.            sendmail-whois[name=SSH, [email protected], [email protected]]
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  10. " A; R# C5 f- b6 k
  11. #閬閮瑼( X% X& |9 T+ Q* ^
  12. logpath  = /var/log/secure# g) W  j: T( }. p  \6 J4 Z
  13. #擃閰阡航炊甈⊥
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  14. maxretry = 2
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  15. #餅嚗-1銵函內瘞訾餅8 T+ m$ ^# `& b6 _9 h5 {7 X
  16. bantime  = -1
銴鋆賭誨蝣
霈fail2ban啣銝閮剝餅IP閬- u% \/ L  b5 R" T2 y+ _
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
2 A% B; i& l8 D6 ?憒閬霈fail2ban啣嚗銝閮剝餅IP閬嚗靽格 /etc/init.d/fail2ban 批捆' P  L' W: B5 ~5 w
vi /etc/init.d/fail2ban
6 }5 E) @3 H* v5 `: c曉酒tart()憛嚗乩誑銝#閮餉圾閮剖嚗  R0 ?; K+ s( K$ s6 q$ z" P$ D$ A& y+ e
  1. start() {
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  2.     echo -n [        DISCUZ_CODE_3        ]quot;Starting fail2ban: "
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  3.     getpid1 W; d  i  Y( m: f7 t2 E3 L
  4.     if [ -z "$pid" ]; then
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  5.         rm -rf /var/run/fail2ban/fail2ban.sock # unclean in case of restart fal2ban
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  6.         $FAIL2BAN -x start > /dev/null
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  7.         RETVAL=$?. G+ S, ]7 g# c6 N5 [
  8.     fi
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  9.     if [ $RETVAL -eq 0 ]; then1 K' W# F4 _8 d! `4 r
  10.         touch /var/lock/subsys/fail2ban
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  11.         echo_success
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  12.         /sbin/service iptables restart # reloads previously banned ip's+ c! Z# n, s6 @) u% m
  13.     else- }: L8 }* u9 t! N+ D
  14.         echo_failure/ X; c6 l9 x- q* p0 k% [- T5 A. n8 u& a
  15.     fi
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  16. . P2 T, V2 t5 d/ W- v
  17.     echo% z! g1 Y$ i  |% Z, x
  18.     return $RETVAL
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  19. }
銴鋆賭誨蝣
曉酒top()憛嚗乩誑銝
#閮餉圾閮剖嚗
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  1. stop() {
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  2.     echo -n [        DISCUZ_CODE_4        ]quot;Stopping fail2ban: "
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  3.     getpid. r( |0 G, O4 r+ M  X
  4.     RETVAL=$?9 \" k# O/ U9 S, ~; u4 J2 B- Q* V2 D( T
  5.     if [ -n "$pid" ]; then/ S! ]6 c" [  t1 T; U6 f, {
  6.        /sbin/service iptables save # saves banned ip's* _7 J2 t8 L% @( q
  7.         $FAIL2BAN stop > /dev/null3 R; n/ {) i3 B$ O
  8.     sleep 1  N* y4 ~- _8 ~' O% e  x* D. g
  9.     getpid& ]* p8 w7 R3 P
  10.     if [ -z "$pid" ]; then3 C6 E% [9 S. ]4 J5 X% ^, c/ D
  11.         rm -f /var/lock/subsys/fail2ban
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  12.         echo_success
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  13.     else- @, A8 |. }5 G% B
  14.         echo_failure( e3 ?* A1 m7 F+ A3 E
  15.     fi
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  16.     else" S# V$ S( E& P$ u6 b
  17.         echo_failure* o. ]/ z9 A% v6 E) c- K
  18.     fi& I. x# o/ P2 l2 P
  19.     echo; [3 j$ A5 W0 T+ g' |" d5 l
  20.     return $RETVAL
銴鋆賭誨蝣
3. 閮剖fail2ban璈摨6 t  ^6 {9 s' l" E, H1 t( m% b

, i; C; r8 H& h5 u5 Schkconfig --add fail2ban
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隞乩 :
7 |4 R' n( e" w% d+ Ihttp://blog.pulipuli.info/2011/07/centosfail2ban.html  
% A- H( D( e' \http://www.vixual.net/blog/archives/252
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