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[linux隞也 Linux 銝 su v.s sudo 隞斗頛

[銴鋆賡包
頝唾唳摰璅撅
璅銝
潸” 2014-12-21 14:08:00 | 芰閰脖 撣 |摨閬 |梯璅∪
砍敺 media 2014-12-21 14:12 蝺刻摩 . G/ k7 C1 a1 {3 I6 {

5 r( v$ D6 I6 N& bsu=switch user ,頧郢oot 撣唾" J2 Q% a5 |- G7 \
sudo 臭誑root甈瑁賊賭誘,靘憒: sudo service mysqld restart,抵隤芣憒銝:0 `! G' m. w! z. c# u& w( U  \  X$ \5 [

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Linux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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1. 雿輻究u隞
  1. #究u雿輻刻* ~$ V) }2 g7 h- Q* K
  2. [aaron@phoenix ~]$ su#雿輻究u氳oot. ]- s" w: S' a9 R& s7 h+ z8 y
  3. Password:[頛詨叵oot撖蝣奭
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  4. 3 d7 h0 _! |" e9 L5 s4 }8 C  E
  5. [root@phoenix aaron]# service httpd restart#撌脣氳oot* v4 w% b$ d: L' \4 i
  6. Stopping httpd:                                            [  OK  ]! A6 Q2 B" Z! F$ v
  7. Starting httpd:                                            [  OK  ]/ v- l) j1 T! A0 f

  8. $ [3 B* a# `# p
  9. [root@phoenix aaron]# exit#aaron  b; i' x" f& k  o
  10.   f/ F2 |# W1 Y
  11. #瑁桐隞歹銝閬氳oot
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  12. [aaron@phoenix ~]$ su -c "service httpd restart"  P) y" a2 \& q! n/ l4 b
  13. Password:[頛詨叵oot撖蝣奭/ n% Z6 S; J/ h1 u8 {" b$ k7 e0 Y
  14. Stopping httpd:                                            [  OK  ]
    ! |, L! v; D, u
  15. Starting httpd:                                            [  OK  ]( o' i5 I) V$ j  [

  16. 2 N6 k8 q: i/ a# ]
  17. #瑁susu -撌桀(Shell啣臬西)
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  18. [aaron@phoenix ~]$ su
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  19. Password:[頛詨叵oot撖蝣奭
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  20. [root@phoenix aaron]# echo $PATH#訐ATH霈賂潛暸雿輻災aronPATH霈, q' Q+ w1 v0 n( O# b$ M
  21. /usr/local/bin:/bin:/usr/bin:/usr/local/sbin:/usr/sbin:/sbin:/home/aaron/bin+ D5 Q5 q4 H- `* i

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  23. [aaron@phoenix ~]$ su -
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  24. Password:[頛詨叵oot撖蝣奭! A5 X' ^6 B) t, w- e* P
  25. [root@phoenix aaron]# echo $PATH#訐ATH霈賂雿輻禿ootPATH霈4 g! r+ f! g/ \. l: S
  26. /usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin
銴鋆賭誨蝣

2 _* E- c5 q- [' C' q6 q2. 閮剖sudoer

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  1. [aaron@phoenix ~]$ su
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  2. Password:[頛詨叵oot撖蝣奭% c" P; d8 h1 n+ I) e; M' l
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  4. [root@phoenix aaron]# vim /etc/sudoers
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  6. ## Allow root to run any commands anywhere5 {& [0 g2 H0 M* ^! y. ~
  7. root    ALL=(ALL)       ALL
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  9. ## Allow users to run any commands anywhere4 M: S" ^. F$ _) r; K/ j
  10. aaron   ALL=(ALL)       ALL#啣璇閮帶aron臭誑瑁蝞∠⊥
銴鋆賭誨蝣

1 o) Z9 ]: K2 x7 S3. 蝭靘
  1. #瘝擃甈嚗隞亙停鋡急鈭
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  2. [aaron@phoenix ~]$ service httpd restart" ?# c8 b& F( Q! @9 P: F( D
  3. Stopping httpd:
    * z  v; U- n* K4 H
  4. rm: cannot remove `/var/run/httpd/httpd.pid': Permission denied
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  5. & Z6 H6 b4 ]3 ?  E7 k8 \- T5 r
  6. Starting httpd:
    * U% A* X/ r9 z5 z8 U
  7. touch: cannot touch `/var/lock/subsys/httpd': Permission denied6 d4 i9 z; a4 F! i9 {3 i
  8. 7 }. e* c% {' W. _0 e* o, i9 w+ i
  9. #究udo撠勗臭誑2 g5 b% z3 H( g, B  [6 ~
  10. [aaron@phoenix ~]$ sudo service httpd restart
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  11. [sudo] password for aaron:[頛詨亙蝣奭+ d0 h; O2 C5 @, a
  12. Stopping httpd:                                            [  OK  ]! h5 E7 w: c0 Q7 r9 L
  13. 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∠⊥
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http://kezeodsnx.pixnet.net/blog/post/25810396

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