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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:
+ V$ J* j* ~7 ~! z7 lCentOS 6.7    爹edHat蝟餃潸穿Fedora蝟颯嚗潸祉鞈閮 /etc/redhat-release嚗
0 n) K; O9 ]+ X0 f1.肘um摰鋆fail2ban
* }* o+ `4 g  ?4 c  M+ J- dyum -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)5 z7 L& G" u$ d. N! s5 x0 ~. H4 f

, N& X  X" T- F: M& 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5 V( M  l( C; ]+ S5 d: e: u$ t

% ^' H) s4 z) Vyum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* S: {4 Y% [$ j7 v
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vi /etc/yum.repos.d/CentOS-Base.repo' U# @& `& p. B+ l7 i
冽敺乩誑銝閮剖嚗' N: o/ x( R3 m. E0 i- \9 @
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[atrpms]4 V5 [. t# u( ]2 C% y1 t4 V4 _' p
name=Red Hat Enterprise Linux $releasever - $basearch - ATrpms* b' ^! m2 {) W+ W
baseurl=http://dl.atrpms.net/el$releasever-$basearch/atrpms/stable9 C* s3 E2 n; d5 M# l5 i8 X
gpgkey=http://ATrpms.net/RPM-GPG-KEY.atrpms, ^1 ?# P, J( U8 y
gpgcheck=1- E( N& {( s3 ^7 N
enabled=17 e4 Z5 i5 L3 P8 e
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2. 閮剖fail2ban1 K. Y4 Q. w  a0 B
銝餉拙閮剖瑼嚗/etc/fail2ban/fail2ban.conf 頝 /etc/fail2ban/jail.conf
2 W$ E+ Z, T8 T2 o+ x5 `- Lvi /etc/fail2ban/fail2ban.conf
( S6 g9 A: K2 S靽格 logtarget :& y+ H) W* G! n% X& W% Z
  1. #閮剔
    / D: i/ o& S9 f5 {
  2. #logtarget = SYSLOG7 P# A4 w/ Q0 B/ F# n  Z' S  n
  3. #隤踵游. T7 R# u* @% g, T) ?/ h
  4. logtarget = /var/log/fail2ban.log
銴鋆賭誨蝣
vi /etc/fail2ban/jail.conf (fail2ban銝餉閮剖瑼)" Z2 u4 `3 }/ n" L( K
  1. #閮剔6 R& k' }* m& M6 P) Y
  2. #backend = auto
      s2 y& c# ?7 [* Q' h
  3. #隤踵游3 z. ~7 e, T3 h- g
  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* M" ]& u* A/ K: I8 O) {4 q
  1. [ssh-iptables]3 b6 `! T$ O$ Y# ?
  2. #臬血
    % i$ l' y& x' M" `5 A
  3. enabled  = true# a% D2 c. _7 K1 g; D8 n  n
  4. #瞈曉蝔梧雿輻券閮剔喳
    8 J9 Q7 w# W4 k! I$ i
  5. filter   = sshd7 v' h* F4 k  D9 x) M6 y- s
  6. #iptables閮剖
    6 D2 }8 ^9 ~7 t
  7. action   = iptables[name=SSH, port=22022, protocol=tcp]$ I5 w, }% F; l5 h
  8.            #潛餅撖靽∟身摰
    % {( }- [: H) M4 J. v
  9.            sendmail-whois[name=SSH, dest=xxxx@gmail.com, sender=root@xxxx.com]4 u$ G( F3 K7 T( [$ ~0 R
  10.   Q1 X. Q+ A  J' _, [6 ^) P/ G0 L1 ]
  11. #閬閮瑼
    9 _* i( U1 G! ?( d2 i
  12. logpath  = /var/log/secure2 g' p- f# _0 `( y! Y; h- Z! R6 Z3 A$ {
  13. #擃閰阡航炊甈⊥6 {1 e$ H+ {0 Z) T
  14. maxretry = 2
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  15. #餅嚗-1銵函內瘞訾餅
    # \+ _2 V# t- ?, Y0 S3 c
  16. bantime  = -1
銴鋆賭誨蝣
霈fail2ban啣銝閮剝餅IP閬
6 R; t) S/ Y! j) K: @' 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
* H7 Y# S" g; H2 V+ Y憒閬霈fail2ban啣嚗銝閮剝餅IP閬嚗靽格 /etc/init.d/fail2ban 批捆5 s- J  t7 j$ _0 b) I
vi /etc/init.d/fail2ban
9 r  [  F  H- O0 i4 Q4 g5 e( k曉酒tart()憛嚗乩誑銝#閮餉圾閮剖嚗
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  1. start() {/ j7 r0 l1 Q' r
  2.     echo -n [        DISCUZ_CODE_3        ]quot;Starting fail2ban: "
    5 T% H& T8 Q' d1 I! ]" y
  3.     getpid
    8 p# H: w7 ?+ C: t. W
  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.         $FAIL2BAN -x start > /dev/null
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  7.         RETVAL=$?
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  8.     fi! z1 @8 q$ d' S' l6 Z2 J+ h
  9.     if [ $RETVAL -eq 0 ]; then
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  10.         touch /var/lock/subsys/fail2ban
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  11.         echo_success) u9 h) A, O+ |+ Y, n
  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( ]5 n7 ?# \2 s# e0 u
  16. , w( P) T# Y4 ~& F: p
  17.     echo
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  18.     return $RETVAL
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  19. }
銴鋆賭誨蝣
曉酒top()憛嚗乩誑銝
#閮餉圾閮剖嚗
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  1. stop() {
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  2.     echo -n [        DISCUZ_CODE_4        ]quot;Stopping fail2ban: "! w3 _; j. w9 H$ Y. `* R
  3.     getpid' D) ]" @) ^$ M) }
  4.     RETVAL=$?
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  5.     if [ -n "$pid" ]; then, m2 h9 E/ o3 E, ^- D7 }2 Q
  6.        /sbin/service iptables save # saves banned ip's
    - B9 b' B, F2 m
  7.         $FAIL2BAN stop > /dev/null" q( p- M+ x" [3 Z
  8.     sleep 1
    6 s( y. f0 m( K# |) e$ q  w
  9.     getpid- E1 G' d, R0 D! q9 h
  10.     if [ -z "$pid" ]; then
    # _/ a% o% s+ l
  11.         rm -f /var/lock/subsys/fail2ban
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  12.         echo_success
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  13.     else9 z+ [0 v1 M1 I1 }% i
  14.         echo_failure4 f- O! M4 R6 z( }  H6 V+ R0 B
  15.     fi4 D* t. |- Q: i5 q
  16.     else5 ~# O2 L+ J6 Y) ~
  17.         echo_failure$ E7 s( L+ H- W) o1 I* n" X
  18.     fi
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  19.     echo
      V/ J9 i" f/ ~, T! X" {
  20.     return $RETVAL
銴鋆賭誨蝣
3. 閮剖fail2ban璈摨7 t$ ]4 d; a$ @, O0 e! W' P. B
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chkconfig --add fail2ban" q2 e3 V- z9 t2 u# B/ @9 Z# a

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p.s
$ G. g' n( G8 E隞乩 :
0 y) M9 X8 v( f8 m5 R( yhttp://blog.pulipuli.info/2011/07/centosfail2ban.html  % Q& K+ \9 F/ r
http://www.vixual.net/blog/archives/252
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