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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
0 N. Z  x* g; r  i7 csudo 臭誑root甈瑁賊賭誘,靘憒: sudo service mysqld restart,抵隤芣憒銝:; q4 a0 [0 O& r7 C) Q

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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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3 {1 f' c# A8 ~% ~; a* \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
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  3. Password:[頛詨叵oot撖蝣奭
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  5. [root@phoenix aaron]# service httpd restart#撌脣氳oot$ ?0 g: M9 w0 J# N" F, M0 k
  6. Stopping httpd:                                            [  OK  ]% ?1 f/ x/ v; x" _/ k
  7. Starting httpd:                                            [  OK  ]4 z7 s% `& Y; w9 @1 j6 |5 {

  8. " ~; A1 R7 \# ^1 b' ^# o1 @
  9. [root@phoenix aaron]# exit#aaron& S1 o' w& f4 k% B+ M& U3 M9 g
  10. 7 A9 ]  n; o8 `
  11. #瑁桐隞歹銝閬氳oot9 P* }- R7 D/ \$ ?2 H/ b
  12. [aaron@phoenix ~]$ su -c "service httpd restart"
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  13. Password:[頛詨叵oot撖蝣奭
    $ v( X% f; W' S
  14. Stopping httpd:                                            [  OK  ]' c* B5 ?) s7 u$ w
  15. Starting httpd:                                            [  OK  ]
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  16. 5 w+ |: j. _9 {. V
  17. #瑁susu -撌桀(Shell啣臬西)8 b3 N5 _6 H! r* m. M2 t. ]
  18. [aaron@phoenix ~]$ su* |: [( o  Q; v1 X
  19. Password:[頛詨叵oot撖蝣奭  u* Z3 g+ _; \2 k# x
  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/bin  [  z  A5 u( O

  22. % _& i$ \6 g7 C, W9 {
  23. [aaron@phoenix ~]$ su -  |1 y7 f* Z' @) g
  24. Password:[頛詨叵oot撖蝣奭$ E9 D, O$ H& W% H% S2 D+ B: }8 H
  25. [root@phoenix aaron]# echo $PATH#訐ATH霈賂雿輻禿ootPATH霈3 Y0 e: D$ {9 |0 }: o! p% [
  26. /usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin
銴鋆賭誨蝣

' G& W, }1 g: Q  y2. 閮剖sudoer

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  1. [aaron@phoenix ~]$ su; G& ~# [+ b% @7 ~
  2. Password:[頛詨叵oot撖蝣奭& n- p$ E' G$ \0 X  |
  3. 1 u$ S2 U$ w, w$ ?
  4. [root@phoenix aaron]# vim /etc/sudoers# z+ G4 S+ p+ P( h- j
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  6. ## Allow root to run any commands anywhere
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  7. root    ALL=(ALL)       ALL- R( s/ E; a, a8 Z$ F* |

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  9. ## Allow users to run any commands anywhere
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  10. aaron   ALL=(ALL)       ALL#啣璇閮帶aron臭誑瑁蝞∠⊥
銴鋆賭誨蝣

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  1. #瘝擃甈嚗隞亙停鋡急鈭
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  2. [aaron@phoenix ~]$ service httpd restart
      y4 u3 Z. f7 r2 S( J4 n" `$ |
  3. Stopping httpd:
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  4. rm: cannot remove `/var/run/httpd/httpd.pid': Permission denied
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  5. 2 k) D) ^( i" x
  6. Starting httpd:
    . {; C; N- L! O# Y) I$ f
  7. touch: cannot touch `/var/lock/subsys/httpd': Permission denied+ A( d" }) Y$ f9 M/ g# h$ i

  8. + q6 w  s, Z/ h
  9. #究udo撠勗臭誑
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  10. [aaron@phoenix ~]$ sudo service httpd restart; v* g9 l; o2 v( H0 p  E
  11. [sudo] password for aaron:[頛詨亙蝣奭3 }  G+ s, @* [" |: c
  12. Stopping httpd:                                            [  OK  ]
    1 r% h! I0 R! v% l& z( \
  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∠⊥
# Q. l- K0 w' O& ?
http://kezeodsnx.pixnet.net/blog/post/25810396

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