砍敺 IT_man 2016-4-9 22:36 蝺刻摩 6 F6 p5 _7 C4 c# ~
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1 l8 `/ F" T" ^! ]% C" S& pCentOS 6.7 爹edHat蝟餃潸穿Fedora蝟颯嚗潸祉鞈閮 /etc/redhat-release嚗
- P! @7 p6 I( G1.肘um摰鋆fail2ban
7 c: k# z- K2 Kyum -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)
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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
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隢蝺刻摩 /etc/yum.repos.d/CentOS-Base.repo 嚗
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7 ?, z- ` A7 E6 R$ C! zvi /etc/yum.repos.d/CentOS-Base.repo
; h! e( Z( C. K) F7 V3 k冽敺乩誑銝閮剖嚗
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, ?- m: D0 R5 n5 x! t- V[atrpms]# {* O N( C( T; R
name=Red Hat Enterprise Linux $releasever - $basearch - ATrpms6 e6 t! C2 ?5 d6 n \
baseurl=http://dl.atrpms.net/el$releasever-$basearch/atrpms/stable
9 Q. W- N* D4 o9 D# S5 D3 s ]gpgkey=http://ATrpms.net/RPM-GPG-KEY.atrpms
8 I6 S+ S3 a+ e: u) ^gpgcheck=1, S" V! e& z+ ^& h x7 t' y9 d% D
enabled=1
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& K3 S0 |$ C$ h0 a% }) l, q2. 閮剖fail2ban! E$ Q/ b) }9 s, a8 l( T/ _% Q# b$ N
銝餉拙閮剖瑼嚗/etc/fail2ban/fail2ban.conf 頝 /etc/fail2ban/jail.conf! A' U5 l& {- S) ?: v- H& e
vi /etc/fail2ban/fail2ban.conf
) Z5 G' [) h, x% ~# J( K靽格 logtarget :
# a# V8 N+ |* T5 ^- #閮剔- j, z' ]1 Q# [) u
- #logtarget = SYSLOG4 F# G1 B+ P$ m$ t4 E; E
- #隤踵游, H& k5 ^, Y1 A) x$ x& B$ E. Z
- logtarget = /var/log/fail2ban.log
銴鋆賭誨蝣 vi /etc/fail2ban/jail.conf (fail2ban銝餉閮剖瑼)$ Y8 h/ Q$ E t; f3 D& ]2 W) f9 j e
- #閮剔
" S7 K5 Q* b2 I2 o - #backend = auto
0 d* x7 X2 ]$ S( w, P c! h* i' e# U - #隤踵游
7 B( I3 @& d3 z2 P5 K5 D0 L - 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: Q4 M x' S9 L6 f% [ L$ _) \
- [ssh-iptables]
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- enabled = true6 T1 m# h) R! \- n+ T
- #瞈曉蝔梧雿輻券閮剔喳
4 K7 N n" F( P! I; H: Q7 ^4 O - filter = sshd2 Y5 r, e) |& k
- #iptables閮剖
; n' B9 \1 W( Y) C( D2 D2 K - action = iptables[name=SSH, port=22022, protocol=tcp]. H+ W+ x, B6 n, B5 K6 E. g
- #潛餅撖靽∟身摰
' D; i- N, y- R8 d% g5 [ - sendmail-whois[name=SSH, dest=xxxx@gmail.com, sender=root@xxxx.com]% G9 j/ D E) `; a, D* o+ J
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- #閬閮瑼1 ^) G+ X3 I. K
- logpath = /var/log/secure+ o! W6 d; `" V1 _% ]+ w/ {4 g
- #擃閰阡航炊甈⊥
+ g% ~* W" J t+ ^; z$ o* W3 c7 m - maxretry = 20 t) R4 ]* N* w9 y
- #餅嚗-1銵函內瘞訾餅
+ R* _! o* N% ~ I# V: \# D - bantime = -1
銴鋆賭誨蝣 霈fail2ban啣銝閮剝餅IP閬
8 I4 F& _4 w' u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
/ n. }! D# w7 A3 z$ P+ D憒閬霈fail2ban啣嚗銝閮剝餅IP閬嚗靽格 /etc/init.d/fail2ban 批捆
4 H6 J# b& P0 X& }1 a% t vi /etc/init.d/fail2ban1 ^0 _) O$ e% j e) {( j' p) u
曉酒tart()憛嚗乩誑銝#閮餉圾閮剖嚗
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- echo -n [ DISCUZ_CODE_3 ]quot;Starting fail2ban: "
/ Q" ]4 m; v+ Y' n - getpid' J; B6 c% B& Y) W
- if [ -z "$pid" ]; then
3 K5 C: J9 o$ E3 T8 C* b0 h4 R - rm -rf /var/run/fail2ban/fail2ban.sock # unclean in case of restart fal2ban m/ A2 S0 f& G- h7 W1 j0 S
- $FAIL2BAN -x start > /dev/null: ]6 p0 G; T7 g$ b1 Z' r# Q! N
- RETVAL=$?
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- if [ $RETVAL -eq 0 ]; then
9 |. v& A# |/ c - touch /var/lock/subsys/fail2ban- s3 }( i+ T% g; e0 a m
- echo_success3 E m# g. s& N, K' ]6 H
- /sbin/service iptables restart # reloads previously banned ip's- \; F% U/ N( K" t
- else u$ z; r; k8 `) W
- echo_failure2 I" I6 u; s4 w+ U
- fi
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+ Y6 U+ \" U5 R% P1 h' }- echo
5 Z* v1 J: t9 W: B6 z - return $RETVAL5 I8 G3 l$ X, ?
- }
銴鋆賭誨蝣 曉酒top()憛嚗乩誑銝#閮餉圾閮剖嚗
/ k+ t# o5 w, _* B. G& i, o- stop() {
/ d3 v8 o5 X3 @5 b - echo -n [ DISCUZ_CODE_4 ]quot;Stopping fail2ban: "0 ]( W" {0 G7 F8 ]6 B5 i5 z
- getpid0 Q& @8 `- c% g0 H0 H& E
- RETVAL=$?- o, w# R/ Z" a: {
- if [ -n "$pid" ]; then- n: D T& N+ q4 R/ Q+ M
- /sbin/service iptables save # saves banned ip's. C; p& _1 U# r8 P2 E
- $FAIL2BAN stop > /dev/null
# ~5 c. U! Q4 P( ~" @3 C - sleep 1$ U" z( {: a6 N/ ^* N
- getpid
' c3 K6 h+ ^, j8 U6 d7 x - if [ -z "$pid" ]; then
% e- ^$ o: I& w6 U) a. o+ k - rm -f /var/lock/subsys/fail2ban8 O- y3 s+ i# ] H! M5 y% @
- echo_success& i" ~- d8 Q. h' Y( o
- else8 i0 ~' [7 ?/ s& a
- echo_failure! M9 [7 Q% i2 t1 {
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- else
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- echo
/ h2 Z3 l$ i! ~5 X5 x - 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 y5 }) Y' d) b( V" x6 s' }
http://blog.pulipuli.info/2011/07/centosfail2ban.html
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