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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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CentOS 6.7    爹edHat蝟餃潸穿Fedora蝟颯嚗潸祉鞈閮 /etc/redhat-release嚗
) P- w; p9 D8 k4 n1 _! t, T1.肘um摰鋆fail2ban
0 H+ K( x( \4 w5 ~2 [# u3 j( ^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). B2 s- i3 G* D
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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atrpms1 s- Q/ ?" e( [. I6 E: x+ a" e

4 p0 l: B* G5 f! g, S6 B; v0 N隢蝺刻摩 /etc/yum.repos.d/CentOS-Base.repo 嚗
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% O" \& ]+ i9 k$ S  ?6 Avi /etc/yum.repos.d/CentOS-Base.repo- k& K/ v' j# x9 A
冽敺乩誑銝閮剖嚗! [& \: s6 J1 K1 f* @) K# p1 r" ^

' J4 c9 U: T% }# a% L9 I[atrpms]7 n/ [0 |7 C$ S" ]$ Z- O
name=Red Hat Enterprise Linux $releasever - $basearch - ATrpms
; L& m. B  A8 o9 @+ O+ Bbaseurl=http://dl.atrpms.net/el$releasever-$basearch/atrpms/stable
  H' l' w" [- X1 N% L8 \/ W* Jgpgkey=http://ATrpms.net/RPM-GPG-KEY.atrpms9 l4 u+ Q% ^$ \6 A7 o' d
gpgcheck=1
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2. 閮剖fail2ban( [& |  x, N$ y% X$ N1 [
銝餉拙閮剖瑼嚗/etc/fail2ban/fail2ban.conf 頝 /etc/fail2ban/jail.conf
6 `8 A- w* c6 D! R# jvi /etc/fail2ban/fail2ban.conf
$ x5 p/ ~) \6 x- `( A7 h( K+ [靽格 logtarget :
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  1. #閮剔
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  2. #logtarget = SYSLOG6 F0 y  u  A% e+ @( p# w$ H0 i
  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)& r% X" T: j% @5 G* m+ ~2 N
  1. #閮剔
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  2. #backend = auto
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  3. #隤踵游+ E! @4 l0 @1 O8 S* B
  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/ [5 `8 c  Z1 U9 J- T' f) G) A
  1. [ssh-iptables]
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  2. #臬血9 ]# p3 x3 w5 W3 U% p! s
  3. enabled  = true/ ^; f+ r5 u8 P( u( F! H2 d
  4. #瞈曉蝔梧雿輻券閮剔喳
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  5. filter   = sshd
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  6. #iptables閮剖/ p$ ^$ K6 I- i+ s$ d
  7. action   = iptables[name=SSH, port=22022, protocol=tcp]
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  8.            #潛餅撖靽∟身摰+ j$ G$ C7 h% m3 X1 J% F8 R* T5 ?
  9.            sendmail-whois[name=SSH, dest=xxxx@gmail.com, sender=root@xxxx.com], E. T! x2 F  Y* S. T& b8 u

  10. 6 W6 w9 J3 n9 S+ w
  11. #閬閮瑼0 \* c" w2 b# I  q8 x( b1 g" y
  12. logpath  = /var/log/secure
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  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
    $ E7 ?2 x: Z0 B2 s7 s
  16. bantime  = -1
銴鋆賭誨蝣
霈fail2ban啣銝閮剝餅IP閬
* U: R7 h' J, `$ b' b& R2 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erver5 i* l9 D: O! y* g% d4 \
憒閬霈fail2ban啣嚗銝閮剝餅IP閬嚗靽格 /etc/init.d/fail2ban 批捆, e% I+ W  J* \* b/ \
vi /etc/init.d/fail2ban8 o% p, T, E5 o( i/ }
曉酒tart()憛嚗乩誑銝#閮餉圾閮剖嚗
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  1. start() {: S- b* p( I) I4 H4 }
  2.     echo -n [        DISCUZ_CODE_3        ]quot;Starting fail2ban: "3 G9 ~4 Y' n7 k3 P
  3.     getpid' W5 s# y+ _" Z0 W+ S: A! G
  4.     if [ -z "$pid" ]; then) [+ v% \( O0 n9 I& y
  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& v. v0 ^  k6 }+ y: I" j$ {
  9.     if [ $RETVAL -eq 0 ]; then  c3 b' {& P, n/ `3 K% Z
  10.         touch /var/lock/subsys/fail2ban( J9 S7 V: g  H1 _0 T$ s( l0 v
  11.         echo_success) a* n3 J8 D; F+ [" n5 d
  12.         /sbin/service iptables restart # reloads previously banned ip's- K0 e- e6 p% ~8 |, k2 A
  13.     else
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  14.         echo_failure5 s7 h* u' r5 D+ F1 K8 t
  15.     fi0 _1 k6 m% i& P/ r+ j# g/ i" l
  16. * `/ [# h& ^2 z  b$ z: i
  17.     echo7 e' X5 k2 ?! z+ ?2 J- [# l0 d% ^
  18.     return $RETVAL
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  19. }
銴鋆賭誨蝣
曉酒top()憛嚗乩誑銝
#閮餉圾閮剖嚗9 n# v$ f) g5 Z% ~7 ]( v
  1. stop() {
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  2.     echo -n [        DISCUZ_CODE_4        ]quot;Stopping fail2ban: "
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  3.     getpid
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  4.     RETVAL=$?
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  5.     if [ -n "$pid" ]; then
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  6.        /sbin/service iptables save # saves banned ip's* {2 i$ ]. o( @- M
  7.         $FAIL2BAN stop > /dev/null
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  8.     sleep 17 q' E. }. a( ~
  9.     getpid+ d: {+ U1 g$ r# o. {
  10.     if [ -z "$pid" ]; then3 h# _. b7 z- F  o
  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_failure8 s! |& i3 J# }7 k' A5 \$ E: \
  15.     fi
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  16.     else# T( n7 \  j2 X9 S6 G' A& s
  17.         echo_failure
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  18.     fi# p( g: z: }6 a" e
  19.     echo
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  20.     return $RETVAL
銴鋆賭誨蝣
3. 閮剖fail2ban璈摨
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chkconfig --add fail2ban
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隞乩 :
0 R& Q# H- ?. O5 P0 f1 q" n$ x+ Hhttp://blog.pulipuli.info/2011/07/centosfail2ban.html  
! j; x3 q. I+ Xhttp://www.vixual.net/blog/archives/252
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