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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 k) [7 P+ Y" R) ?: J$ f6 {, T

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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6 H9 i4 a) p0 Q+ d( k; i. n( N
1.肘um摰鋆fail2ban  w  y, w4 S8 H
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)5 \* Y. U5 {- p: K

: l  I5 ^/ V! W( C- f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- v& k1 h3 Y9 v9 _! {- W

* Q" `8 _8 o: Z. \" W$ ~3 ^/ u* tyum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 R; O+ K9 E! \7 e5 Y2 R* L2 C3 m% Z
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隢蝺刻摩 /etc/yum.repos.d/CentOS-Base.repo 嚗
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vi /etc/yum.repos.d/CentOS-Base.repo5 ^+ S: x5 R0 b5 s: i! N
冽敺乩誑銝閮剖嚗+ a) Z2 u. H8 t; ]; \) W- ?
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[atrpms]
9 C3 `0 n5 ^% |* O! s' I# uname=Red Hat Enterprise Linux $releasever - $basearch - ATrpms
7 z  O5 Y% ]9 m( xbaseurl=http://dl.atrpms.net/el$releasever-$basearch/atrpms/stable
8 x  R% \! J! F: ?8 a; |% Ogpgkey=http://ATrpms.net/RPM-GPG-KEY.atrpms
; S4 L) P  W9 Q- Y5 ugpgcheck=1
: C" ~9 T$ W2 i7 `1 I2 e0 u" ^enabled=1& O8 N+ f' T8 U% J2 u* e
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2. 閮剖fail2ban
3 ]0 T/ s0 s$ s& q! l# @  M, E銝餉拙閮剖瑼嚗/etc/fail2ban/fail2ban.conf 頝 /etc/fail2ban/jail.conf% F7 C1 l# b- {& b" k* T+ x2 u, b1 z
vi /etc/fail2ban/fail2ban.conf! [( D) g- }$ }
靽格 logtarget :9 x7 j; ?( }# C6 X- U6 _6 i
  1. #閮剔
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  2. #logtarget = SYSLOG
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  3. #隤踵游
    # u4 E. ^( ?3 a1 D' z  \
  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/ n3 R  L2 z: v4 B- K) v4 B3 g" T1 C9 [
  2. #backend = auto
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  3. #隤踵游
    # c8 O. M9 P/ E2 J4 E" l$ Q
  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]. y% K0 I/ m, {8 s+ @8 K
  2. #臬血
    ) [- r8 s3 w3 s. B* F: Y
  3. enabled  = true
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  4. #瞈曉蝔梧雿輻券閮剔喳4 A) y( f7 V5 n* ?
  5. filter   = sshd) j) V" t2 W7 p. W
  6. #iptables閮剖  y, a6 A% c* t. n( X  b
  7. action   = iptables[name=SSH, port=22022, protocol=tcp]
    9 [; y/ o( Q8 K& w
  8.            #潛餅撖靽∟身摰$ q) |/ l7 q" @* K0 O0 j
  9.            sendmail-whois[name=SSH, [email protected], [email protected]]; D7 l) a: n- V2 j: P3 y

  10. % J) i9 O& X" S, {" j
  11. #閬閮瑼
    3 ]5 e( N3 C3 {- B' R! y6 z) |
  12. logpath  = /var/log/secure
      {1 ]$ W- w6 _4 z' E7 t
  13. #擃閰阡航炊甈⊥
    4 U0 q: K( ~. Q5 [6 g, b# A2 V
  14. maxretry = 2
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  15. #餅嚗-1銵函內瘞訾餅
    9 m: R) Q# V/ f( Z1 u( O  Z! d  P) X" X
  16. bantime  = -1
銴鋆賭誨蝣
霈fail2ban啣銝閮剝餅IP閬
5 y8 \0 X& o* Y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
. \6 T! e9 S1 T5 ?憒閬霈fail2ban啣嚗銝閮剝餅IP閬嚗靽格 /etc/init.d/fail2ban 批捆2 t& B4 a- w* i" k% g9 j
vi /etc/init.d/fail2ban% Q4 U/ L5 f5 r
曉酒tart()憛嚗乩誑銝#閮餉圾閮剖嚗/ A9 B  s; g4 {* e, {
  1. start() {
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  2.     echo -n [        DISCUZ_CODE_3        ]quot;Starting fail2ban: "
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  3.     getpid, J; h# z6 c7 p3 E' c; t6 B
  4.     if [ -z "$pid" ]; then
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  5.         rm -rf /var/run/fail2ban/fail2ban.sock # unclean in case of restart fal2ban; O/ z/ i/ c% P+ D
  6.         $FAIL2BAN -x start > /dev/null& B* Z' |; T+ f! q% |' T
  7.         RETVAL=$?
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  8.     fi
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  9.     if [ $RETVAL -eq 0 ]; then
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  10.         touch /var/lock/subsys/fail2ban
    & q4 \+ f- \7 |: K8 \, s' x! u
  11.         echo_success" `9 |7 P: r& ]# c* w7 x8 X
  12.         /sbin/service iptables restart # reloads previously banned ip's' @" v% x) n7 }
  13.     else  i+ h& n! J7 Q$ f' d9 b# v
  14.         echo_failure
    7 @% c: ?) ]' y# p
  15.     fi
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  16. & ^, e1 S  E) Q+ ]% r
  17.     echo# \) c: ]3 ^6 _& _8 \7 X% Z
  18.     return $RETVAL8 j6 D4 ?$ P6 ~
  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: "5 X8 u( A; [0 \) F4 Q1 u! W; k; C
  3.     getpid
    0 P, g4 i' Y# @
  4.     RETVAL=$?8 n, i# U' R0 y0 s3 ]  }
  5.     if [ -n "$pid" ]; then. u3 z* Y( A  o$ L# E
  6.        /sbin/service iptables save # saves banned ip's2 K: `' D* ?" M( d
  7.         $FAIL2BAN stop > /dev/null
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  8.     sleep 1
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  9.     getpid8 p' j& ~9 ~. d5 a2 V
  10.     if [ -z "$pid" ]; then$ }2 B) K% m7 Y1 O) H( y4 \' y* R$ w
  11.         rm -f /var/lock/subsys/fail2ban+ i- C+ s& R) R: X+ J( ~, W! n
  12.         echo_success. G- g) ?! O( @, X9 n7 l  |
  13.     else
      r$ v* ?7 n1 }, r- V+ q9 g
  14.         echo_failure, m. z7 _/ l$ K( ]; g
  15.     fi6 S0 i' k: [. M* ?/ \
  16.     else
    3 d( n* b# |, Y% ]  V
  17.         echo_failure8 C: L* G: r( f) H
  18.     fi
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  19.     echo- m* C+ {9 Q5 k: Y
  20.     return $RETVAL
銴鋆賭誨蝣
3. 閮剖fail2ban璈摨3 N9 R, ]2 k9 w) h4 P, f
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chkconfig --add fail2ban
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' _3 j" y% V; z隞乩 :
: D6 x- D7 O9 s5 L6 U! chttp://blog.pulipuli.info/2011/07/centosfail2ban.html  - H: h4 d5 R% ~" }, {* h! W* @5 U
http://www.vixual.net/blog/archives/252
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