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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 0 u" q, D6 f' `/ C9 \% x3 k

. H: F% \& `: dsu=switch user ,頧郢oot 撣唾  b: |/ R6 _- D- Y
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
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* d4 n; V- K. `( W, s, r' U1. 雿輻究u隞
  1. #究u雿輻刻* G9 _9 _+ Y' f* l* N
  2. [aaron@phoenix ~]$ su#雿輻究u氳oot) O1 h1 b! v& C
  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  ]4 C$ |+ q# `8 r8 j3 a( X
  7. Starting httpd:                                            [  OK  ]8 f3 g. j: U' n9 R2 _

  8. % T- D' J+ o$ ?- K* l1 l
  9. [root@phoenix aaron]# exit#aaron# k8 {( ?. D3 |1 H+ \2 M" A8 Y: Y
  10. - a5 `* y  w+ ]3 Y0 x, a6 ?
  11. #瑁桐隞歹銝閬氳oot# j  g& K9 N% _* G9 `4 h$ e
  12. [aaron@phoenix ~]$ su -c "service httpd restart"- W( b& _8 C5 C8 `' C* c
  13. Password:[頛詨叵oot撖蝣奭4 O! R6 X+ I' |( I+ ^
  14. Stopping httpd:                                            [  OK  ]- w2 R) v7 E& X3 H$ v4 I9 b& u
  15. Starting httpd:                                            [  OK  ]
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  17. #瑁susu -撌桀(Shell啣臬西); ~$ W' K  v& a( G9 Q2 D0 |
  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 $PATH#訐ATH霈賂潛暸雿輻災aronPATH霈
    # ]: r6 L0 s" m
  21. /usr/local/bin:/bin:/usr/bin:/usr/local/sbin:/usr/sbin:/sbin:/home/aaron/bin
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  23. [aaron@phoenix ~]$ su -
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  24. Password:[頛詨叵oot撖蝣奭. n( l: w, {, g+ \, B
  25. [root@phoenix aaron]# echo $PATH#訐ATH霈賂雿輻禿ootPATH霈
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  26. /usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin
銴鋆賭誨蝣
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2. 閮剖sudoer
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  1. [aaron@phoenix ~]$ su
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  2. Password:[頛詨叵oot撖蝣奭
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  3. : d% {* g1 Q' s; j) \! c& {
  4. [root@phoenix aaron]# vim /etc/sudoers
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  6. ## Allow root to run any commands anywhere
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  7. root    ALL=(ALL)       ALL
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  9. ## Allow users to run any commands anywhere
    # ~2 B. v, q2 }
  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; y0 ^0 I9 V& C& P
  2. [aaron@phoenix ~]$ service httpd restart
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  3. Stopping httpd:' Q8 b: i+ I; P# A( k8 C
  4. rm: cannot remove `/var/run/httpd/httpd.pid': Permission denied
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  5. * l# U& t5 ?' B0 V
  6. Starting httpd:. S" N- Q- L5 j9 Z: t' F
  7. touch: cannot touch `/var/lock/subsys/httpd': Permission denied& f- B- o8 I3 Y' a- v$ F+ _

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  9. #究udo撠勗臭誑
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  10. [aaron@phoenix ~]$ sudo service httpd restart
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  11. [sudo] password for aaron:[頛詨亙蝣奭
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  12. Stopping httpd:                                            [  OK  ]' {  h' r6 e. y4 y/ L6 E
  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

雿輻券

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