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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:
3 Y: n$ M* j) N4 n8 ACentOS 6.7    爹edHat蝟餃潸穿Fedora蝟颯嚗潸祉鞈閮 /etc/redhat-release嚗9 O0 j/ _) `1 }: u) g, V
1.肘um摰鋆fail2ban
0 ~: Q5 R% k3 j0 g+ v, w7 yyum -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)1 `! H# O/ a2 E# f+ G; r& }9 ?
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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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# E7 u8 r( |* I0 ?  M+ Oyum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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! W2 |) ^8 Q# ^vi /etc/yum.repos.d/CentOS-Base.repo
  ^/ C) {* l8 g冽敺乩誑銝閮剖嚗
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& z5 v0 w6 o! m[atrpms]2 {& X3 z( R, Q+ \
name=Red Hat Enterprise Linux $releasever - $basearch - ATrpms* d3 R1 ?- P' y& i7 ?+ P4 ^
baseurl=http://dl.atrpms.net/el$releasever-$basearch/atrpms/stable
$ z  [9 t% t( U2 _& B  X- bgpgkey=http://ATrpms.net/RPM-GPG-KEY.atrpms1 ?( q7 t9 A; D0 ~: v! q( i
gpgcheck=1
+ k6 y' H8 ^1 ^8 O+ i0 X1 Denabled=1
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2. 閮剖fail2ban
$ o  y. g3 s1 N. _7 ]1 O; {銝餉拙閮剖瑼嚗/etc/fail2ban/fail2ban.conf 頝 /etc/fail2ban/jail.conf2 o# e* H' H  V8 h% @/ V
vi /etc/fail2ban/fail2ban.conf( c. @4 h" _% O! L
靽格 logtarget :( Q( H: X* b0 t, |* x: G
  1. #閮剔
    # Q) p! y; x/ X5 w
  2. #logtarget = SYSLOG; X7 k4 i! |4 }  M( U) Y
  3. #隤踵游4 n5 N0 m9 p2 N$ P# D
  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2 Y5 X: f. S9 a) l  z2 I7 `
  2. #backend = auto 3 J3 X) t! ~. ?" a
  3. #隤踵游6 b* \% o+ P: g2 W6 G: e
  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]
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  2. #臬血: v# f" g* k' A2 y5 Z5 q
  3. enabled  = true
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  4. #瞈曉蝔梧雿輻券閮剔喳
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  5. filter   = sshd7 U7 ^/ S7 @5 J. M4 {
  6. #iptables閮剖
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  7. action   = iptables[name=SSH, port=22022, protocol=tcp]8 P) O* e+ l7 ~6 Q# n6 b, t
  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.   l8 d* R) a5 s' o- @
  11. #閬閮瑼0 z* w, i4 R! J% E& t9 b
  12. logpath  = /var/log/secure
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  13. #擃閰阡航炊甈⊥
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  14. maxretry = 2" k( Y+ H2 i' |
  15. #餅嚗-1銵函內瘞訾餅  ^9 n3 J* k0 ^3 _: _
  16. bantime  = -1
銴鋆賭誨蝣
霈fail2ban啣銝閮剝餅IP閬5 F: o; x3 s+ T; A$ B
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erver7 `. m$ p' @0 R, l% c0 N
憒閬霈fail2ban啣嚗銝閮剝餅IP閬嚗靽格 /etc/init.d/fail2ban 批捆
2 b$ q7 ?% r8 K% F vi /etc/init.d/fail2ban/ w# V. S) B/ u" i( g+ [
曉酒tart()憛嚗乩誑銝#閮餉圾閮剖嚗+ }' p) j& J) O8 W2 N
  1. start() {
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  2.     echo -n [        DISCUZ_CODE_3        ]quot;Starting fail2ban: "; I9 |# m$ G0 `  M; ]- Y  J
  3.     getpid
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  4.     if [ -z "$pid" ]; then
    # F, y8 y! h7 o0 Q
  5.         rm -rf /var/run/fail2ban/fail2ban.sock # unclean in case of restart fal2ban9 x% V; O9 h' T9 h$ f
  6.         $FAIL2BAN -x start > /dev/null9 U' e% Y7 v% z8 A
  7.         RETVAL=$?
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  8.     fi
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  9.     if [ $RETVAL -eq 0 ]; then
    & h. l$ Y6 \' w, E4 ~" ?
  10.         touch /var/lock/subsys/fail2ban/ L' {8 [9 G. b& q" Y( N
  11.         echo_success- ~* R8 }. y7 [6 Q# ]6 p
  12.         /sbin/service iptables restart # reloads previously banned ip's$ k2 K* K) r- z# u1 B( p4 I8 a$ M
  13.     else6 F; U- q# V/ {: y" l. C+ _
  14.         echo_failure
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  15.     fi; P- B! t! k: [9 @- G0 v0 h( \' u

  16. 2 r. r& L, ?- d( |# |
  17.     echo' I  o$ {0 p% r8 ?; @+ H# d. s
  18.     return $RETVAL9 A& S! l$ ~& [
  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: "" K$ X, \" ]6 _* j
  3.     getpid
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  4.     RETVAL=$?
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  5.     if [ -n "$pid" ]; then& G% ~+ l6 w0 ?: I
  6.        /sbin/service iptables save # saves banned ip's/ a+ z2 R1 P' Q6 `# Y7 x. r/ r
  7.         $FAIL2BAN stop > /dev/null
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  8.     sleep 1( j3 o6 u! i& _0 M) Y# U- s* S# b" I
  9.     getpid
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  10.     if [ -z "$pid" ]; then
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  11.         rm -f /var/lock/subsys/fail2ban, [) t( m( x5 {" ]
  12.         echo_success0 }3 w8 u/ U# k3 F3 _
  13.     else
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  14.         echo_failure0 y# |8 R0 R, p
  15.     fi
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  16.     else6 ]5 K" W0 i6 y8 ^) S
  17.         echo_failure
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  18.     fi" {5 y6 u" s; V, B4 C
  19.     echo9 x4 I0 ~- k+ i% }
  20.     return $RETVAL
銴鋆賭誨蝣
3. 閮剖fail2ban璈摨& a4 E6 B. J* N; [, O
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chkconfig --add fail2ban
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p.s
% Z4 b  r0 f! O; F+ J隞乩 :
9 ^: w$ R+ g8 C' D9 vhttp://blog.pulipuli.info/2011/07/centosfail2ban.html  
8 |. G0 V# [( ?: ~5 yhttp://www.vixual.net/blog/archives/252
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