砍敺 media 2014-12-21 14:12 蝺刻摩 ! n% _3 N! ]9 W4 l J0 U* r, V
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su=switch user ,頧郢oot 撣唾
/ k! @6 c P7 b/ S: ~7 N5 l& X" Asudo 臭誑root甈瑁賊賭誘,靘憒: sudo service mysqld restart,抵隤芣憒銝:
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4 X) d7 s& P2 N% j& c5 OLinux摰鋆憟隞嗉蝟餌絞閮剖賡閬root甈嚗撠望盎uper-user privileges (擃甈)嚗銋撠望舐恣⊥憒雿root甈嚗臭誑湔亦究sh餃叵oot撣唾嚗究u(substitute user)隞支雿輻刻嚗銝嗅停臭蝙究udo隞扎
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7 W, v1 e: L! x. U3 P% z. G1. 雿輻究u隞 - #究u雿輻刻
0 {' z4 ?1 B& m% S. o/ Q4 M1 Q - [aaron@phoenix ~]$ su#雿輻究u氳oot
1 t; o" t" V, R! W Z" l* ]: N6 O - Password:[頛詨叵oot撖蝣奭" @& M! s9 m/ A8 `
/ q( m. g: }( |2 b1 l( I- [root@phoenix aaron]# service httpd restart#撌脣氳oot3 C) \5 t m! m% }) P4 s3 m1 ]
- Stopping httpd: [ OK ]
# k/ U0 u2 m0 z7 n5 y. l1 B - Starting httpd: [ OK ]
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- [root@phoenix aaron]# exit#aaron
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* a( z# ?8 Q+ h+ s5 n9 Q- #瑁桐隞歹銝閬氳oot
! W0 }6 h3 T+ i5 ? - [aaron@phoenix ~]$ su -c "service httpd restart"$ ^/ N' g/ f$ E8 ?& o
- Password:[頛詨叵oot撖蝣奭! F/ v( x3 q& E' G+ k6 z* x% K2 Y$ T( |
- Stopping httpd: [ OK ]
3 b0 R( J0 F- N v0 D4 @, @. t3 u - Starting httpd: [ OK ]
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* Y3 T6 M7 K# G9 ]( A) w- #瑁susu -撌桀(Shell啣臬西)0 w: i4 {8 J' O
- [aaron@phoenix ~]$ su
8 D# M/ X, @' m. Z - Password:[頛詨叵oot撖蝣奭/ V7 x2 T* J: Z3 K0 J, o# g. r' X
- [root@phoenix aaron]# echo $PATH#訐ATH霈賂潛暸雿輻災aronPATH霈
$ a$ d+ `: L% D" M - /usr/local/bin:/bin:/usr/bin:/usr/local/sbin:/usr/sbin:/sbin:/home/aaron/bin
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( i) M% O, @! a' ]- [aaron@phoenix ~]$ su -
/ o: L6 Z$ R+ x. h, a ]6 t - Password:[頛詨叵oot撖蝣奭) K1 }; A0 A, U& j! G4 K1 T+ E
- [root@phoenix aaron]# echo $PATH#訐ATH霈賂雿輻禿ootPATH霈
2 q5 Y8 \% e- b4 H: X/ ?7 v( s - /usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin
銴鋆賭誨蝣 : j6 G3 `+ ~6 U, C" J. U3 e/ m% M5 P
2. 閮剖sudoer
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- [aaron@phoenix ~]$ su
- z6 G+ l$ l. O4 `% a9 n A" w7 R - Password:[頛詨叵oot撖蝣奭
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1 y7 L+ p M+ ~" S; C2 ~0 S- [root@phoenix aaron]# vim /etc/sudoers
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' I3 P7 D' l E; j4 c( |+ t: J- ## Allow root to run any commands anywhere
5 U: y! y: F- ? - root ALL=(ALL) ALL5 _ o) L% ?% g( w
/ a4 L. D" Z- z& [, r' N( @- ## Allow users to run any commands anywhere
9 c/ Z$ H! n6 B! c3 R% y - aaron ALL=(ALL) ALL#啣璇閮帶aron臭誑瑁蝞∠⊥
銴鋆賭誨蝣
$ H& E1 \/ V0 c2 n" X4 {7 x3. 蝭靘- #瘝擃甈嚗隞亙停鋡急鈭% \% x; D7 ^! V" ~1 {6 U+ x' v* [
- [aaron@phoenix ~]$ service httpd restart6 r& K) G' v8 f4 z( N
- Stopping httpd:
+ C& S3 j* G. I0 [- k - rm: cannot remove `/var/run/httpd/httpd.pid': Permission denied
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8 `5 x7 }2 {7 h: M) E, l( M- Starting httpd:
, u b7 @" r( R, L l, }# l# k; F - touch: cannot touch `/var/lock/subsys/httpd': Permission denied" m. q+ { w. I
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- #究udo撠勗臭誑
, _5 \% J2 C a& n& T9 f - [aaron@phoenix ~]$ sudo service httpd restart9 R4 h, ~1 Z. P2 T9 E' \
- [sudo] password for aaron:[頛詨亙蝣奭9 |/ P% R t8 ~7 |/ U% g" b1 ]
- Stopping httpd: [ OK ]% d2 e: E4 N/ E* _1 y
- Starting httpd: [ OK ]
銴鋆賭誨蝣 #susudo撌桀亙冽潭臬西霈銝砌蝙刻仿root撖蝣潘憒究u撠勗撠root撖蝣澆鈭怠箏鳴敺航賡蝟餌絞鋡思噩亦梢芥sudo航銝砌蝙刻蝞∠⊥嚗芾頛詨亥芸楛撖蝣澆喳荔雿璅憸券迎箸蝞∠⊥
3 m8 a; h. @9 @臬http://kezeodsnx.pixnet.net/blog/post/25810396 |