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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 |甇摨閬 |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9 Y$ C3 j, w+ \3 J2 a
sudo 臭誑root甈瑁賊賭誘,靘憒: sudo service mysqld restart,抵隤芣憒銝:! {# |; v: J* o! o8 J: B

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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 - A+ n0 r5 |0 h3 `5 y
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1. 雿輻究u隞
  1. #究u雿輻刻3 U# z0 e" C& Z# g( v2 }
  2. [aaron@phoenix ~]$ su#雿輻究u氳oot: e( A9 s3 N  Y' }! |( d* }* Y
  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  ]
    9 }% Y0 w9 v  M
  7. Starting httpd:                                            [  OK  ]
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  9. [root@phoenix aaron]# exit#aaron
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  10. ' ~3 W, E1 ?$ q- a9 ^, `" [
  11. #瑁桐隞歹銝閬氳oot
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  12. [aaron@phoenix ~]$ su -c "service httpd restart"6 _$ G) v  R/ N* C) l* u+ \( A
  13. Password:[頛詨叵oot撖蝣奭$ d' D8 x5 E5 Q. B  x. m/ {* E
  14. Stopping httpd:                                            [  OK  ]7 [( f% {* e+ V# ^' S
  15. Starting httpd:                                            [  OK  ]
    3 q# X' n+ ]5 s6 Y% G1 W9 ^

  16. 5 L2 z* _5 L" ^5 U4 q
  17. #瑁susu -撌桀(Shell啣臬西)6 B! N% c9 U3 G1 l
  18. [aaron@phoenix ~]$ su1 C+ K9 A7 F' }, e$ P: C
  19. Password:[頛詨叵oot撖蝣奭
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  20. [root@phoenix aaron]# echo $PATH#訐ATH霈賂潛暸雿輻災aronPATH霈
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  21. /usr/local/bin:/bin:/usr/bin:/usr/local/sbin:/usr/sbin:/sbin:/home/aaron/bin
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  22. : ]- W/ z$ q, f
  23. [aaron@phoenix ~]$ su -5 W  X- |. A- {1 W( N
  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
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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; E' m) m0 _$ a4 M/ f& i) J

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  4. [root@phoenix aaron]# vim /etc/sudoers4 Z. K' C) G7 \! b! Y1 q
  5.   u1 a, {* A1 D; y
  6. ## Allow root to run any commands anywhere1 U2 W5 F. t9 ^% o! Z, i- B
  7. root    ALL=(ALL)       ALL7 m- B1 n  v* }
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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+ K9 y% H5 M2 ?1 y& |
  2. [aaron@phoenix ~]$ service httpd restart
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  3. Stopping httpd:' @0 G- V, h! O" N2 O9 g( [$ @) F
  4. rm: cannot remove `/var/run/httpd/httpd.pid': Permission denied. O- F. [- T7 f) _: \4 |5 g) c3 b) A

  5. 4 P" {* ]- A0 {0 H
  6. Starting httpd:/ m( f2 ]$ |5 T; K, ?; {0 b, h
  7. touch: cannot touch `/var/lock/subsys/httpd': Permission denied+ _* A7 p; P7 E# r( r5 e

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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  ]
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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

雿輻券

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