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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 4 Y' w% V; v7 q8 w* b+ P0 p
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啣:
" E9 X- L! b0 S6 R7 pCentOS 6.7    爹edHat蝟餃潸穿Fedora蝟颯嚗潸祉鞈閮 /etc/redhat-release嚗
5 f7 P1 T" T, l, a* d1.肘um摰鋆fail2ban! l! _6 D+ M' y/ V8 }6 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). Q5 r/ A' V4 {6 ~3 x% W9 B8 {
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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; M& h( G3 _+ h8 G; B# U: K
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隢蝺刻摩 /etc/yum.repos.d/CentOS-Base.repo 嚗
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0 {1 n3 |1 C& v& x+ f0 S7 ovi /etc/yum.repos.d/CentOS-Base.repo( B) s( A8 [, \- U+ M
冽敺乩誑銝閮剖嚗- t, H9 w* v: O
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[atrpms]
0 B. g' m' O- n. o0 F$ lname=Red Hat Enterprise Linux $releasever - $basearch - ATrpms
* d0 Q! ^5 H7 @* M2 ?baseurl=http://dl.atrpms.net/el$releasever-$basearch/atrpms/stable( s. Q* T/ _9 f9 t% G/ b( [
gpgkey=http://ATrpms.net/RPM-GPG-KEY.atrpms
) i$ p# T, f9 _3 h0 g% ^$ Jgpgcheck=1
* r# i! x' k, a  y: Uenabled=1
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% j& s" G0 A" A% F2. 閮剖fail2ban
; W+ G! c$ y1 m# \7 T" T銝餉拙閮剖瑼嚗/etc/fail2ban/fail2ban.conf 頝 /etc/fail2ban/jail.conf2 f8 q; Y+ P! e+ z
vi /etc/fail2ban/fail2ban.conf2 I0 F: M, m4 d( i3 {+ i
靽格 logtarget :( {- O- G* j" y. T8 r# V1 p& a! D
  1. #閮剔* i. h6 h5 ~. l* Y" I
  2. #logtarget = SYSLOG! A. L9 a1 B" U, E6 V4 @$ e
  3. #隤踵游
    3 }3 z: q$ }+ g- e
  4. logtarget = /var/log/fail2ban.log
銴鋆賭誨蝣
vi /etc/fail2ban/jail.conf (fail2ban銝餉閮剖瑼); Z$ b$ x$ W% r6 G( P; i% o
  1. #閮剔# m2 Q5 e% N8 l5 |6 x9 {  s
  2. #backend = auto 3 P$ p5 b+ S# b! l: g
  3. #隤踵游
    . _8 j# b) F* s9 L  D
  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]
    ' p# W6 }6 G1 v& D% j9 c8 j
  2. #臬血: ^' C5 j" A9 D
  3. enabled  = true- s" n& p2 O" H+ ]) _
  4. #瞈曉蝔梧雿輻券閮剔喳* a1 c7 A6 n* J" a& }" }
  5. filter   = sshd
    9 T7 ^$ s: |) o$ v# O6 U
  6. #iptables閮剖: x% B0 K' T. S% D
  7. action   = iptables[name=SSH, port=22022, protocol=tcp]% `: e$ `  {, e! l- f
  8.            #潛餅撖靽∟身摰
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  9.            sendmail-whois[name=SSH, dest=xxxx@gmail.com, sender=root@xxxx.com]
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  10. 8 L3 p, o+ R( n7 L. _
  11. #閬閮瑼5 U  [9 M8 g( N6 Z, e
  12. logpath  = /var/log/secure
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  13. #擃閰阡航炊甈⊥
    ) |5 e5 H3 h) \; t) J- }
  14. maxretry = 2! P1 v& g0 Y$ R0 n* D
  15. #餅嚗-1銵函內瘞訾餅
    ( j3 D+ A1 H+ v9 z9 P8 j
  16. bantime  = -1
銴鋆賭誨蝣
霈fail2ban啣銝閮剝餅IP閬$ k1 {9 s+ s" N6 }+ h
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 @- p0 T& j( @" {憒閬霈fail2ban啣嚗銝閮剝餅IP閬嚗靽格 /etc/init.d/fail2ban 批捆
3 H# P+ g  u  _# U) p# H vi /etc/init.d/fail2ban
/ b6 `7 n( i; s' I曉酒tart()憛嚗乩誑銝#閮餉圾閮剖嚗/ K! j6 {- p' |; u3 y; y
  1. start() {) l' h& n1 t3 e" S# K  ~8 _
  2.     echo -n [        DISCUZ_CODE_3        ]quot;Starting fail2ban: "
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  3.     getpid
    . |! F0 Y7 K% E% O7 Q  |# F: }; q# n
  4.     if [ -z "$pid" ]; then
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  5.         rm -rf /var/run/fail2ban/fail2ban.sock # unclean in case of restart fal2ban$ M5 U; B3 s% i' O5 }0 O2 i. j
  6.         $FAIL2BAN -x start > /dev/null
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  7.         RETVAL=$?5 Y0 a+ s3 A9 d; x8 C( w  z- m
  8.     fi
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  9.     if [ $RETVAL -eq 0 ]; then
    : ]* A: Z% w1 F4 P: d% f9 I2 j
  10.         touch /var/lock/subsys/fail2ban* i8 b, ^9 [. K( V# D0 g) m
  11.         echo_success% ~+ J$ U9 r- ~* c2 l
  12.         /sbin/service iptables restart # reloads previously banned ip's
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  13.     else2 |! t* P  u, a
  14.         echo_failure* G0 K4 P7 a% r) C  l& Y
  15.     fi
    ) ]; H( ?, }# A% e6 E# R; w. E
  16. , N1 b1 h) g: z" w
  17.     echo: Y: O: r( x% N, Q4 n) K
  18.     return $RETVAL, e* ^& R# U' y
  19. }
銴鋆賭誨蝣
曉酒top()憛嚗乩誑銝
#閮餉圾閮剖嚗. r1 g3 w% [: C7 z& e0 G
  1. stop() {) U/ _- w* r+ _) w5 l5 q' C
  2.     echo -n [        DISCUZ_CODE_4        ]quot;Stopping fail2ban: "
    4 W$ `5 G1 m0 K- u/ G* w" H
  3.     getpid5 _& m1 e7 A' d
  4.     RETVAL=$?) f' V/ M, Y4 m! L) V0 v
  5.     if [ -n "$pid" ]; then6 f9 H# M/ U/ l- K
  6.        /sbin/service iptables save # saves banned ip's
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  7.         $FAIL2BAN stop > /dev/null
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  8.     sleep 1
    * k4 C5 n; x- _  s- j
  9.     getpid
    / ^8 R. j; P- ~
  10.     if [ -z "$pid" ]; then% g; `  j" U9 H- z
  11.         rm -f /var/lock/subsys/fail2ban8 M) P% z# Z1 |
  12.         echo_success8 q* v' [  G0 f8 s; |( d
  13.     else3 K4 D7 B& ], g- ]8 Q, {  I8 e
  14.         echo_failure/ b* V" I/ B6 e3 I% Z( e
  15.     fi
    + n5 I* v1 ]  B# Z, {
  16.     else5 F% u/ \2 B+ g8 o3 w) T& ^  w& |+ V
  17.         echo_failure
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  18.     fi5 ]% d6 t1 q8 K! O! Z9 I
  19.     echo" r' W  U: b- f$ u& B% }( j
  20.     return $RETVAL
銴鋆賭誨蝣
3. 閮剖fail2ban璈摨
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chkconfig --add fail2ban
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p.s 0 i% J8 T% t3 J3 t* E4 @: h
隞乩 :
+ {4 n* Z0 I3 P$ s1 z9 xhttp://blog.pulipuli.info/2011/07/centosfail2ban.html  ! J, s" z2 g% ]
http://www.vixual.net/blog/archives/252
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