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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 " j# q& Z$ o' x2 w. A9 y

2 M; @% f5 B! O  V$ Fsu=switch user ,頧郢oot 撣唾8 p2 Q" h2 d$ h2 `
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 , R  G$ x6 R9 Z
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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oot8 E$ H" U7 O" b
  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  ]
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  9. [root@phoenix aaron]# exit#aaron+ I9 g, ]1 v9 Y/ I6 V8 F

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  11. #瑁桐隞歹銝閬氳oot( @5 t, }' ~3 s) `- X4 I
  12. [aaron@phoenix ~]$ su -c "service httpd restart"
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  13. Password:[頛詨叵oot撖蝣奭
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  14. Stopping httpd:                                            [  OK  ]) M# t; K; |, p  ~
  15. Starting httpd:                                            [  OK  ]
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  16. " i4 r, T$ n3 u
  17. #瑁susu -撌桀(Shell啣臬西), e& Z$ }; y% S: h( J
  18. [aaron@phoenix ~]$ su/ |1 [. w8 m0 V) e0 D: y( i% D
  19. Password:[頛詨叵oot撖蝣奭
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  20. [root@phoenix aaron]# echo $PATH#訐ATH霈賂潛暸雿輻災aronPATH霈4 f3 V: K4 `0 d7 {
  21. /usr/local/bin:/bin:/usr/bin:/usr/local/sbin:/usr/sbin:/sbin:/home/aaron/bin
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  22.   ~  ~7 }3 S# w0 F' U  E7 b
  23. [aaron@phoenix ~]$ su -& i: F+ ~$ J) n% U8 c
  24. Password:[頛詨叵oot撖蝣奭. M( F( k! {1 C9 `8 C' z
  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

$ ], L! h! y5 }% r, [2. 閮剖sudoer

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  1. [aaron@phoenix ~]$ su) a3 B# d: O' D& g& P3 z$ W9 t. G
  2. Password:[頛詨叵oot撖蝣奭* T  I; C5 H  l$ F2 L3 |

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  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
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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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3. 蝭靘
  1. #瘝擃甈嚗隞亙停鋡急鈭
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  2. [aaron@phoenix ~]$ service httpd restart. }) ?' y0 z# `; I' L4 Q0 w
  3. Stopping httpd:) K: w$ U( \3 y' q& e  v3 {3 m
  4. rm: cannot remove `/var/run/httpd/httpd.pid': Permission denied* E% H5 _; o# Z; X2 X
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  6. Starting httpd:
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  7. touch: cannot touch `/var/lock/subsys/httpd': Permission denied
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  9. #究udo撠勗臭誑
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  10. [aaron@phoenix ~]$ sudo service httpd restart& {" `/ E( s: T
  11. [sudo] password for aaron:[頛詨亙蝣奭" d  T, |9 d% W# w: a
  12. Stopping httpd:                                            [  OK  ]. r% x' `1 W5 _+ }1 x2 ?# ~3 t
  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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