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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, G2 {9 }7 p, ~( g8 u
sudo 臭誑root甈瑁賊賭誘,靘憒: sudo service mysqld restart,抵隤芣憒銝:2 W2 a. s( K- @$ C. H

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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 & o2 Q0 O( ]9 r' m  X3 O5 L
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1. 雿輻究u隞
  1. #究u雿輻刻+ Y5 f+ I3 N# `
  2. [aaron@phoenix ~]$ su#雿輻究u氳oot
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  3. Password:[頛詨叵oot撖蝣奭! G. }3 {# D; P* f9 ^- v$ B  h& J

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  5. [root@phoenix aaron]# service httpd restart#撌脣氳oot4 j. z/ P" z" T6 \
  6. Stopping httpd:                                            [  OK  ]
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  7. Starting httpd:                                            [  OK  ]' d' n2 C2 p, _5 W
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  9. [root@phoenix aaron]# exit#aaron
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  11. #瑁桐隞歹銝閬氳oot1 z8 T4 M" _# {9 X) C$ h
  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  ]
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  15. Starting httpd:                                            [  OK  ]
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  16. 8 z) D3 |2 D; ]; s# I
  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
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  20. [root@phoenix aaron]# echo $PATH#訐ATH霈賂潛暸雿輻災aronPATH霈
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  21. /usr/local/bin:/bin:/usr/bin:/usr/local/sbin:/usr/sbin:/sbin:/home/aaron/bin  m( J+ R1 `# Y
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  23. [aaron@phoenix ~]$ su -" q4 z* W1 w; l) H
  24. Password:[頛詨叵oot撖蝣奭4 ?+ h& }0 z+ n$ m! w% H
  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

" h) U' a6 u+ p2. 閮剖sudoer

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  1. [aaron@phoenix ~]$ su
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  2. Password:[頛詨叵oot撖蝣奭2 y2 ?3 n4 e& G0 m

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  4. [root@phoenix aaron]# vim /etc/sudoers& u% I4 X% z; b" C# k8 s
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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  X3 c$ Y7 g/ Q% _8 Z4 k1 O
  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 restart7 F( l, n* d! o8 R& ?; o$ `, Z# R9 ]
  3. Stopping httpd:
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  4. rm: cannot remove `/var/run/httpd/httpd.pid': Permission denied
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  6. Starting httpd:. k" `& y+ }' k8 ~- t
  7. touch: cannot touch `/var/lock/subsys/httpd': Permission denied
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  9. #究udo撠勗臭誑+ y" a3 V# K# z7 \) i' f& f
  10. [aaron@phoenix ~]$ sudo service httpd restart" {2 h$ [, ~2 I* ~
  11. [sudo] password for aaron:[頛詨亙蝣奭2 y- f: l; t) C2 _  w) t
  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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