砍敺 IT_man 2016-4-9 22:36 蝺刻摩
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) Q! r7 t: t0 n! iCentOS 6.7 爹edHat蝟餃潸穿Fedora蝟颯嚗潸祉鞈閮 /etc/redhat-release嚗3 O, V0 y" `; H3 A! W3 c
1.肘um摰鋆fail2ban
0 E9 n& O% w5 d: r% q& Zyum -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4 o) B( G6 j) H7 v0 Y
, J, r* H3 u5 Z1 W: i: T6 Vyum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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vi /etc/yum.repos.d/CentOS-Base.repo
0 R6 i5 Q4 }; ~# p冽敺乩誑銝閮剖嚗
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[atrpms]- d( ]# b& C! h% V! v$ ~
name=Red Hat Enterprise Linux $releasever - $basearch - ATrpms
7 O8 ]* i0 V& `" S# B' D" Fbaseurl=http://dl.atrpms.net/el$releasever-$basearch/atrpms/stable
3 C: k' ^, e/ |7 i3 Igpgkey=http://ATrpms.net/RPM-GPG-KEY.atrpms3 c s( h) a+ d5 c
gpgcheck=1$ J7 @1 {1 s7 B; e6 j
enabled=19 C- ?: z5 [$ X7 ^4 A1 W- V
. m8 ^. z5 N" T( e- E+ @2. 閮剖fail2ban. h V) G n! D! E* T9 H
銝餉拙閮剖瑼嚗/etc/fail2ban/fail2ban.conf 頝 /etc/fail2ban/jail.conf
6 R8 z! u0 |6 D8 f' }vi /etc/fail2ban/fail2ban.conf
9 c) ^0 O, ~& M$ o# e5 @靽格 logtarget :/ Y" Z/ G- T8 U. Q6 t
- #閮剔, z$ _3 g, P! a8 d8 G
- #logtarget = SYSLOG0 L8 w. J- E; v- z) Y1 i
- #隤踵游/ v0 c/ ~/ Q: ~9 `
- logtarget = /var/log/fail2ban.log
銴鋆賭誨蝣 vi /etc/fail2ban/jail.conf (fail2ban銝餉閮剖瑼)+ }1 S+ ], q! b& n
- #閮剔
: T, R/ Q" l4 k" G - #backend = auto " q/ M# h' t. J% H. |% `" Q* E% g$ ^% X
- #隤踵游
8 z$ O" c% _8 m& \; D" E0 e - 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8 M* F" o$ Y( {
- [ssh-iptables]' F) z. P3 X8 e9 T5 w8 \+ ~8 V
- #臬血- q* G% m, |0 v; `+ x0 [! k; l
- enabled = true; z0 l$ T X9 l5 n5 q7 k1 U% P
- #瞈曉蝔梧雿輻券閮剔喳" d& s5 a- q+ ?' k8 Q7 d
- filter = sshd+ g I i0 j/ x6 x$ r3 t
- #iptables閮剖" n& c' N( ^# b
- action = iptables[name=SSH, port=22022, protocol=tcp]
' ~% f r; o* U; e) s - #潛餅撖靽∟身摰) B+ J0 q7 h- B! N' } @& F) x `
- sendmail-whois[name=SSH, [email protected], [email protected]]
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( \* n4 K1 A: s; B: F ]- #閬閮瑼/ b; t& V; U! P% a
- logpath = /var/log/secure6 J) r7 t0 {6 Z7 T+ J! j; ^
- #擃閰阡航炊甈⊥
# E$ C3 _2 Z4 P- v! _6 ] - maxretry = 2
9 e; L) j0 ^$ K4 a9 h7 d - #餅嚗-1銵函內瘞訾餅
; |& K2 @) Q; b0 ~6 D# L - bantime = -1
銴鋆賭誨蝣 霈fail2ban啣銝閮剝餅IP閬
; Z1 x$ F& D; r0 T' u V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! v, N. F! T6 f" L# }7 [' l$ [
憒閬霈fail2ban啣嚗銝閮剝餅IP閬嚗靽格 /etc/init.d/fail2ban 批捆6 a L/ q' n& T7 d1 ^
vi /etc/init.d/fail2ban# u/ W: t4 t: Z) M7 z. Z2 b
曉酒tart()憛嚗乩誑銝#閮餉圾閮剖嚗* l. y$ P5 w5 ?+ w/ Z
- start() {8 u* e" A3 }6 |) r. A
- echo -n [ DISCUZ_CODE_3 ]quot;Starting fail2ban: "
' U( D- k) k+ h/ k: E5 w - getpid
3 x$ C; H9 J9 Y# F) r7 r - if [ -z "$pid" ]; then; B+ m. M! ^' l; _
- rm -rf /var/run/fail2ban/fail2ban.sock # unclean in case of restart fal2ban t; r; v$ h! [/ E3 @7 o0 W. c
- $FAIL2BAN -x start > /dev/null" {( H% D; n4 v8 g; }
- RETVAL=$?4 C9 e5 f% ?" y; m+ v: V
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- if [ $RETVAL -eq 0 ]; then
: z6 Q, V% e) n" o - touch /var/lock/subsys/fail2ban
5 v# [9 E" ~, E3 I- J# q+ Q - echo_success
" b- N+ ]8 h6 Y5 U - /sbin/service iptables restart # reloads previously banned ip's. d4 e' s9 U8 ?; w2 A7 m, I
- else( p1 j+ J3 t- W" g
- echo_failure
& x% m" |! z7 i6 W( R - fi
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- echo D' O1 b3 H+ t% ?* Y' h# u) l
- return $RETVAL
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銴鋆賭誨蝣 曉酒top()憛嚗乩誑銝#閮餉圾閮剖嚗2 j" ], C' f- N$ m
- stop() {
% }+ a0 ^2 C: _$ I3 q - echo -n [ DISCUZ_CODE_4 ]quot;Stopping fail2ban: "
1 v; s- A- e. I! k; I' b: e/ ]% e - getpid
( ? i7 _) w' Z+ }6 s - RETVAL=$?5 `+ R5 \ v" w4 k3 U+ h& a% [
- if [ -n "$pid" ]; then
; J3 g6 ?( N- l0 ^8 A6 l V - /sbin/service iptables save # saves banned ip's( t, A( u" H i/ J$ B7 C" I
- $FAIL2BAN stop > /dev/null
1 z0 T* i. y' d - sleep 1
/ R2 v% I3 N' H2 ~ - getpid
- }: I/ X u. t4 D - if [ -z "$pid" ]; then
+ [+ k* x" ^- F- l' h - rm -f /var/lock/subsys/fail2ban0 K8 [: y3 R: A# ~" s- f% N
- echo_success
/ Q; a# c) b! {- T J1 j/ R$ l - else
* h7 {/ F9 y2 M) R2 v% J - echo_failure5 ?, @3 D& N C( K# O& `' m
- fi$ B0 `6 ^% s0 Z/ A* d7 x
- else7 \& @3 p( C6 a2 c' q1 C
- echo_failure
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- echo0 f* A9 e; L1 z7 [
- return $RETVAL
銴鋆賭誨蝣 3. 閮剖fail2ban璈摨% ^4 m$ p, G6 H. S4 U/ L, E
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chkconfig --add fail2ban
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1 _, ^; X5 _6 n4 fhttp://blog.pulipuli.info/2011/07/centosfail2ban.html 9 B' M' ?$ |* [' [% Z
http://www.vixual.net/blog/archives/252/ {* |3 L, W6 `* J( y% i0 l# \" v5 ^
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