砍敺 IT_man 2016-4-9 22:36 蝺刻摩 ' J% G# V# h1 m; u
/ Q, s2 Q4 ]" O, h. T$ `) |啣:
- b) `2 ^; c1 v$ @( D! zCentOS 6.7 爹edHat蝟餃潸穿Fedora蝟颯嚗潸祉鞈閮 /etc/redhat-release嚗
; I$ h |+ k$ i3 M) d M1.肘um摰鋆fail2ban
`, y: U# M6 t' ]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)
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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2 O+ d- @5 w5 ~& C
. A. [$ G8 C' C0 Byum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% n- s# {9 z$ B* x/ w0 I2 n
! b! O. {2 ^% @* e隢蝺刻摩 /etc/yum.repos.d/CentOS-Base.repo 嚗
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vi /etc/yum.repos.d/CentOS-Base.repo6 ?" L% r3 H/ q Q# P
冽敺乩誑銝閮剖嚗% }; t0 G1 c- T) W
" j9 I7 i0 T. c; m( I4 R[atrpms]; o9 s" v# \# H" g
name=Red Hat Enterprise Linux $releasever - $basearch - ATrpms
/ P# ~$ x0 o% a' S+ a4 I, ^0 lbaseurl=http://dl.atrpms.net/el$releasever-$basearch/atrpms/stable
, a" D* i: _! _gpgkey=http://ATrpms.net/RPM-GPG-KEY.atrpms
) o9 h% X2 {7 e/ s6 l) zgpgcheck=1
. P B! i. m( B0 b9 S( Y4 q& V; G8 Eenabled=1# ~9 t! F5 g; N% ~6 G: Q
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2. 閮剖fail2ban
% N1 M1 z6 [, d& a5 W7 e銝餉拙閮剖瑼嚗/etc/fail2ban/fail2ban.conf 頝 /etc/fail2ban/jail.conf: E8 [, \- |) {% u/ D8 w- @
vi /etc/fail2ban/fail2ban.conf
p/ d- J2 `% `5 ~# q靽格 logtarget :- i& Z- y/ g, |8 h: ~7 C) o
- #閮剔
( W0 w7 {( p$ q! r - #logtarget = SYSLOG
% f% `; x- e6 w3 O3 C - #隤踵游8 M) t; s" {9 \ x0 M
- logtarget = /var/log/fail2ban.log
銴鋆賭誨蝣 vi /etc/fail2ban/jail.conf (fail2ban銝餉閮剖瑼). l8 Q) `1 X p* m' ?. d
- #閮剔
( V8 U2 T# X. i% D - #backend = auto " h% `9 ~8 b+ _( U# \
- #隤踵游8 Z9 k @. U4 a) D: {* W8 Z
- 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$ V, n1 O5 ^6 _& m0 Z3 Y: W
- [ssh-iptables]' R+ v: {! Z) \1 k
- #臬血% t. w- d3 J5 x* t& b; |7 ~# G3 O
- enabled = true; g; {6 c D8 } n
- #瞈曉蝔梧雿輻券閮剔喳
' [9 |& b) w3 e' _. r - filter = sshd( ~0 E# ^" t# J# l( d
- #iptables閮剖
1 g; @( Y7 @( o& I6 L4 Q - action = iptables[name=SSH, port=22022, protocol=tcp]
; d `: Z( g' X7 A- F% W% g# Z& a - #潛餅撖靽∟身摰
Y: `/ g( x& {! j0 z - sendmail-whois[name=SSH, dest=xxxx@gmail.com, sender=root@xxxx.com]+ A& o7 ?4 c5 ?7 K
: Z* Y7 {7 C3 n0 {' P( W. p- r9 s- #閬閮瑼
; M M% D& N6 Q. ^8 s - logpath = /var/log/secure3 U/ Z( R: b4 {+ l
- #擃閰阡航炊甈⊥
9 O* o8 S- N7 ^3 o1 D - maxretry = 29 n2 L0 ?* ^+ A( u: D9 ]8 N8 T' }
- #餅嚗-1銵函內瘞訾餅+ p: z1 V: I7 L7 H" ]- ^
- bantime = -1
銴鋆賭誨蝣 霈fail2ban啣銝閮剝餅IP閬
2 H; E7 k: M7 S. e+ b4 E, _; M1 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
! H# P, B9 e# X6 l- o憒閬霈fail2ban啣嚗銝閮剝餅IP閬嚗靽格 /etc/init.d/fail2ban 批捆; I& d. U6 w+ u+ p* ?
vi /etc/init.d/fail2ban
( n( L+ S7 H5 F) |* x9 t/ ^5 G- i曉酒tart()憛嚗乩誑銝#閮餉圾閮剖嚗
6 y' u, D- B! T; p/ U2 N ~- start() {. r2 A. Z) G5 J# X% q5 w
- echo -n [ DISCUZ_CODE_3 ]quot;Starting fail2ban: ". F& {, R% g6 _+ _2 k2 M% j- {
- getpid
) g8 I9 a2 E8 g& Z+ T - if [ -z "$pid" ]; then
, ~: h- `6 Z* f! b% z" o - rm -rf /var/run/fail2ban/fail2ban.sock # unclean in case of restart fal2ban
6 I7 J5 g; _4 i" M - $FAIL2BAN -x start > /dev/null
# _8 `6 x" M; {) z# k, R+ J) v - RETVAL=$?8 q8 K" z/ h) @/ n: J/ ?! Z4 \
- fi
r7 T) p" a' g6 B6 H% @: S2 | - if [ $RETVAL -eq 0 ]; then
$ q1 N% z! q: S6 K+ Q - touch /var/lock/subsys/fail2ban
: Y& w* ]) c2 D/ u - echo_success
+ d- W! Q- } }6 a8 m! u3 ? - /sbin/service iptables restart # reloads previously banned ip's
# R9 E( B) O0 H5 ^: O - else0 h( q' E4 F' G* U8 c; a
- echo_failure H3 a2 t8 y' L6 h
- fi
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- echo
# p, Z$ t' F/ A! Y! ` v L* F1 \ - return $RETVAL; @8 n9 r- f1 \. T! @* i% a7 ~. t
- }
銴鋆賭誨蝣 曉酒top()憛嚗乩誑銝#閮餉圾閮剖嚗# b! C1 r) \* E! k/ {
- stop() {
7 u. ~* B0 U J4 H; [) c - echo -n [ DISCUZ_CODE_4 ]quot;Stopping fail2ban: "% y' L* P" i t3 z. j8 M
- getpid6 N$ e% \' J3 B
- RETVAL=$?
, {7 n( l8 g+ M; j1 s5 q - if [ -n "$pid" ]; then
$ v+ F% m4 M0 F; |* T( l - /sbin/service iptables save # saves banned ip's
& N6 ?! n) S i* j - $FAIL2BAN stop > /dev/null. G8 c) [1 m/ ^: `5 f2 y: E3 A
- sleep 1
# q* c/ a1 Q- t# Y, ] - getpid8 b7 B8 L0 m: {8 E; ]9 B
- if [ -z "$pid" ]; then0 t3 q" d9 \3 B4 ?& K/ [
- rm -f /var/lock/subsys/fail2ban# n8 \2 N% } j6 M# t, ~
- echo_success
) I1 {' k* m3 n* d0 u - else5 Q9 ^3 u; _ F6 L* N1 _
- echo_failure
6 o( e) J$ n! U8 ?* C1 N, ^4 e - fi$ d i, o6 M* d+ h6 N7 c) \3 ?1 C# e
- else
( v6 P1 s/ Q1 \- C/ T% _ - echo_failure* I; K5 R2 {& t/ h' v( b% B
- fi* t9 G: m6 }0 K0 C- D8 }
- echo' A' b6 G5 T# ^ _
- return $RETVAL
銴鋆賭誨蝣 3. 閮剖fail2ban璈摨4 x6 I) k& i" h2 P# n) M6 @
. o* c' f/ P% f' Uchkconfig --add fail2ban; h4 s6 m! j$ p# h# z: d
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隞乩 :
$ P2 I* _. `6 i2 z9 B t7 Whttp://blog.pulipuli.info/2011/07/centosfail2ban.html
4 Q2 c+ T4 j4 T+ o" f q5 W$ |$ mhttp://www.vixual.net/blog/archives/252$ s. Q) w! e3 i# h. ~% \. X; g/ \
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