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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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+ |  w. y. G8 H4 Esu=switch user ,頧郢oot 撣唾' h+ }2 t3 O# r% n
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 , ?1 v9 w- m9 J, P  [

7 N# j/ |6 b8 z+ @2 {1. 雿輻究u隞
  1. #究u雿輻刻  \" `; ]% B$ ?& `7 w( |
  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
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  6. Stopping httpd:                                            [  OK  ]
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  7. Starting httpd:                                            [  OK  ]
    $ I" ~# @% @9 {, Q
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  9. [root@phoenix aaron]# exit#aaron
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  10. $ [: v# M  z  F6 W& K, h- F5 w
  11. #瑁桐隞歹銝閬氳oot
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  12. [aaron@phoenix ~]$ su -c "service httpd restart"2 u+ ~( Z" g# y8 l  P  G) H3 l: S
  13. Password:[頛詨叵oot撖蝣奭& O9 c$ |( T" X$ a2 C
  14. Stopping httpd:                                            [  OK  ]
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  15. Starting httpd:                                            [  OK  ]* r4 S" v( {8 a# ?: d! O: }

  16. 6 W/ E9 Z, {) U5 I) x1 P; N$ m8 q4 H
  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; G4 N% P8 A0 f" ^0 {
  20. [root@phoenix aaron]# echo $PATH#訐ATH霈賂潛暸雿輻災aronPATH霈
    * `% L4 T3 m" ^0 Q  s4 H7 I. y3 C
  21. /usr/local/bin:/bin:/usr/bin:/usr/local/sbin:/usr/sbin:/sbin:/home/aaron/bin: x# F+ W. b9 F: _; a' f/ ?

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  23. [aaron@phoenix ~]$ su -
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  24. Password:[頛詨叵oot撖蝣奭( B5 _' w& c, L, J# a
  25. [root@phoenix aaron]# echo $PATH#訐ATH霈賂雿輻禿ootPATH霈3 b" Z  ?2 f, Z7 v
  26. /usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin
銴鋆賭誨蝣
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2. 閮剖sudoer
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  1. [aaron@phoenix ~]$ su- N* }8 U& ~! i6 |! k4 K9 ^
  2. Password:[頛詨叵oot撖蝣奭
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  4. [root@phoenix aaron]# vim /etc/sudoers8 w  h' y# @8 \7 z3 i, I

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  6. ## Allow root to run any commands anywhere
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  7. root    ALL=(ALL)       ALL& [0 F  x: }) {) g  p
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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

: q: M' |5 @5 o3. 蝭靘
  1. #瘝擃甈嚗隞亙停鋡急鈭0 J) B8 A$ T3 B6 f
  2. [aaron@phoenix ~]$ service httpd restart& _+ G& u/ T, t' E
  3. Stopping httpd:
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  4. rm: cannot remove `/var/run/httpd/httpd.pid': Permission denied1 Q# F' b2 m4 H# F9 O' T
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  6. Starting httpd:
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  7. touch: cannot touch `/var/lock/subsys/httpd': Permission denied8 }. ~. i$ Y! k% s7 k" ]: L
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  9. #究udo撠勗臭誑
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  10. [aaron@phoenix ~]$ sudo service httpd restart6 T6 x4 K  ]! V7 }( Q
  11. [sudo] password for aaron:[頛詨亙蝣奭
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  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∠⊥
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http://kezeodsnx.pixnet.net/blog/post/25810396

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