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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 |甇摨閬 |梯璅∪
砍敺 IT_man 2016-4-9 22:36 蝺刻摩
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啣:
7 `- g6 i* s9 g4 D! RCentOS 6.7    爹edHat蝟餃潸穿Fedora蝟颯嚗潸祉鞈閮 /etc/redhat-release嚗
% g, a3 D# k# B1.肘um摰鋆fail2ban$ L  _2 U. A4 q
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). \6 {- W$ W0 Q, ^  p- b8 m! N
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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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/ c6 c& N, |9 w. `0 x8 Ryum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atrpms5 C: y; ^3 C' M+ E6 K+ o1 V
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隢蝺刻摩 /etc/yum.repos.d/CentOS-Base.repo 嚗6 a: Y# p% k7 c( D8 }+ t: J
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vi /etc/yum.repos.d/CentOS-Base.repo
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[atrpms]2 i9 s3 N' O$ L( M4 z/ o, v
name=Red Hat Enterprise Linux $releasever - $basearch - ATrpms9 h& v# @, L1 B% @
baseurl=http://dl.atrpms.net/el$releasever-$basearch/atrpms/stable9 b$ o* m: _# g; I. s( j& ~
gpgkey=http://ATrpms.net/RPM-GPG-KEY.atrpms. c: u+ N0 @: v, _6 V& x0 h
gpgcheck=1: p8 Z# t9 Z9 Y! ?4 @' n0 p1 M1 {7 V
enabled=1. E+ k1 \9 _3 O2 q% x' O8 y
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2. 閮剖fail2ban  w9 q1 l- O) e% T
銝餉拙閮剖瑼嚗/etc/fail2ban/fail2ban.conf 頝 /etc/fail2ban/jail.conf! N. z$ S7 ~: R: v" l! [2 \7 b  Q) x9 Y0 ]
vi /etc/fail2ban/fail2ban.conf
+ R3 ~1 `4 g; X2 B6 J6 o! d( }% g靽格 logtarget :1 B- r: \, _5 ~7 t/ V, e
  1. #閮剔: C+ D4 R6 {! E+ k
  2. #logtarget = SYSLOG, j! o. a# s) F; x' Y& X
  3. #隤踵游
    0 p& j5 F0 E: k5 h
  4. logtarget = /var/log/fail2ban.log
銴鋆賭誨蝣
vi /etc/fail2ban/jail.conf (fail2ban銝餉閮剖瑼)$ s0 \6 b* ~8 a( i! d1 ?
  1. #閮剔
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  2. #backend = auto
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  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
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  1. [ssh-iptables]/ l8 Z6 X9 ^" G- e
  2. #臬血! x6 F% _# w8 W2 R& i
  3. enabled  = true
    4 P7 u/ \7 h/ q
  4. #瞈曉蝔梧雿輻券閮剔喳
    + F( h% T+ o$ c0 I
  5. filter   = sshd" I1 o9 p, ]' m/ G! O: Y
  6. #iptables閮剖
    " u2 \+ Q+ X7 H+ s3 {# f! S
  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, dest=xxxx@gmail.com, sender=root@xxxx.com]: l9 ]  {% k" K- r
  10. 1 ]1 {  P/ p! F
  11. #閬閮瑼) D$ [- H$ E! k8 E. q1 i# I
  12. logpath  = /var/log/secure4 y# [& Q8 M8 q* P' }
  13. #擃閰阡航炊甈⊥
    5 k( M* u  t3 C2 ?8 A
  14. maxretry = 24 F- t8 c6 e4 ^8 _9 d
  15. #餅嚗-1銵函內瘞訾餅, r8 R7 R& {# j: I2 Z) j& Z
  16. bantime  = -1
銴鋆賭誨蝣
霈fail2ban啣銝閮剝餅IP閬
1 }. r) i6 R4 p6 {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
" {4 P5 I% T9 P* t' z憒閬霈fail2ban啣嚗銝閮剝餅IP閬嚗靽格 /etc/init.d/fail2ban 批捆7 j/ D# p1 |$ e6 D
vi /etc/init.d/fail2ban  n2 {: X  l- u/ o
曉酒tart()憛嚗乩誑銝#閮餉圾閮剖嚗
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  1. start() {" j( d4 V. m" [) p; L! G* [
  2.     echo -n [        DISCUZ_CODE_3        ]quot;Starting fail2ban: "( ~# O" j1 z5 }
  3.     getpid, I: N6 V* y' t0 y$ L
  4.     if [ -z "$pid" ]; then
    % G; F4 ]5 p  M" I0 b
  5.         rm -rf /var/run/fail2ban/fail2ban.sock # unclean in case of restart fal2ban7 Z. Z. a6 B1 j! T
  6.         $FAIL2BAN -x start > /dev/null# y  H0 T8 q" |# f# f/ w8 ?+ y
  7.         RETVAL=$?
    # {- ]5 p  m& ]3 w& P  ~; \
  8.     fi( L; Y4 j, D) E7 K: Z' Q$ ~. [0 C6 o
  9.     if [ $RETVAL -eq 0 ]; then8 `9 \" i& b% V
  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
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  13.     else
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  14.         echo_failure: p- i! G. M+ ^) s6 p) u; Z
  15.     fi
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  16. ' v& _; b9 A. U0 R- @7 D: _
  17.     echo
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  18.     return $RETVAL
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  19. }
銴鋆賭誨蝣
曉酒top()憛嚗乩誑銝
#閮餉圾閮剖嚗4 ^8 p* {' n: T
  1. stop() {
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  2.     echo -n [        DISCUZ_CODE_4        ]quot;Stopping fail2ban: "0 M. R: `, m. q, G7 V
  3.     getpid
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  4.     RETVAL=$?9 e+ d* B% @% i* G9 W. v4 V9 [
  5.     if [ -n "$pid" ]; then
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  6.        /sbin/service iptables save # saves banned ip's( H& e0 F% I$ W
  7.         $FAIL2BAN stop > /dev/null( B; `% c# b0 J
  8.     sleep 1
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  9.     getpid
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  10.     if [ -z "$pid" ]; then: G8 c$ e9 s  a
  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
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  15.     fi/ x& ~5 H5 ~; F4 h, Y! [6 L
  16.     else( `6 t' x1 x$ K) x. ]
  17.         echo_failure
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  18.     fi! X8 z$ n0 _$ [
  19.     echo
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  20.     return $RETVAL
銴鋆賭誨蝣
3. 閮剖fail2ban璈摨
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chkconfig --add fail2ban
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隞乩 :
" H: G$ Y/ \- |. r4 `http://blog.pulipuli.info/2011/07/centosfail2ban.html  
  l& Z# Z- m  M9 K) N8 Hhttp://www.vixual.net/blog/archives/252
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