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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
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su=switch user ,頧郢oot 撣唾$ f5 E) u8 e/ Q. b
sudo 臭誑root甈瑁賊賭誘,靘憒: sudo service mysqld restart,抵隤芣憒銝:
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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 & {- g3 ]6 |* T  Q) p0 D( g/ Q# B
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1. 雿輻究u隞
  1. #究u雿輻刻
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  2. [aaron@phoenix ~]$ su#雿輻究u氳oot# M1 f' v( A% k- b
  3. Password:[頛詨叵oot撖蝣奭; v5 E' r+ r9 U+ b4 O2 E/ U

  4. % d5 W  r& T3 M2 y8 R
  5. [root@phoenix aaron]# service httpd restart#撌脣氳oot
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  6. Stopping httpd:                                            [  OK  ]; M$ B" V; c' K9 U5 H. `
  7. Starting httpd:                                            [  OK  ]& J; c* N7 e* H+ v6 G# J& j" R
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  9. [root@phoenix aaron]# exit#aaron; i! h$ ?' m- x+ r2 o1 p- v
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  11. #瑁桐隞歹銝閬氳oot
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  12. [aaron@phoenix ~]$ su -c "service httpd restart". n+ ~4 ^/ f: j! V. p
  13. Password:[頛詨叵oot撖蝣奭$ g: l; h( U$ Y! t% v/ W! ~
  14. Stopping httpd:                                            [  OK  ]
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  15. Starting httpd:                                            [  OK  ]
    # F7 q$ e8 P. @3 Q2 d

  16. ! Y6 `/ R$ h" ~2 K8 X8 ^! q
  17. #瑁susu -撌桀(Shell啣臬西)
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  18. [aaron@phoenix ~]$ su( J/ s2 I5 X9 P5 K
  19. Password:[頛詨叵oot撖蝣奭% g7 x, ~  V0 p
  20. [root@phoenix aaron]# echo $PATH#訐ATH霈賂潛暸雿輻災aronPATH霈
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  21. /usr/local/bin:/bin:/usr/bin:/usr/local/sbin:/usr/sbin:/sbin:/home/aaron/bin6 z# r. v4 [! N$ H4 G8 J$ a# |

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  23. [aaron@phoenix ~]$ su -. ?0 s* s4 F& D4 u: }
  24. Password:[頛詨叵oot撖蝣奭
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  25. [root@phoenix aaron]# echo $PATH#訐ATH霈賂雿輻禿ootPATH霈
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  26. /usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin
銴鋆賭誨蝣

' e% i& O7 }& V& {! Y3 l0 d2. 閮剖sudoer
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  1. [aaron@phoenix ~]$ su
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  2. Password:[頛詨叵oot撖蝣奭2 ~+ W7 L  y" C& a9 f$ D

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  4. [root@phoenix aaron]# vim /etc/sudoers! o5 f1 }4 J) d) |) E+ P
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  6. ## Allow root to run any commands anywhere7 X  Y6 H8 A* p4 Y3 t4 }
  7. root    ALL=(ALL)       ALL& I* Z# B7 {# k

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  9. ## Allow users to run any commands anywhere5 z4 K  i9 J- `/ B* L& L
  10. aaron   ALL=(ALL)       ALL#啣璇閮帶aron臭誑瑁蝞∠⊥
銴鋆賭誨蝣
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3. 蝭靘
  1. #瘝擃甈嚗隞亙停鋡急鈭
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  2. [aaron@phoenix ~]$ service httpd restart6 {6 G0 E. o  J, f# ]% Z- p
  3. Stopping httpd:* v/ b* q7 f! r6 q( l1 f
  4. rm: cannot remove `/var/run/httpd/httpd.pid': Permission denied4 N6 L' ^- ^' R; Z% c

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  6. Starting httpd:! \  H! P/ u- `% @% p' @
  7. touch: cannot touch `/var/lock/subsys/httpd': Permission denied% d" `) S& r- X) F
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  9. #究udo撠勗臭誑
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  10. [aaron@phoenix ~]$ sudo service httpd restart% q2 P8 e, u1 n7 O
  11. [sudo] password for aaron:[頛詨亙蝣奭1 Z2 i3 d/ Y' r3 |) g
  12. Stopping httpd:                                            [  OK  ]
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  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∠⊥6 w, x( I9 c& f
http://kezeodsnx.pixnet.net/blog/post/25810396

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