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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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su=switch user ,頧郢oot 撣唾
7 k7 U; F, V6 l( c# v. q" Nsudo 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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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oot
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  3. Password:[頛詨叵oot撖蝣奭
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  4. 0 J, J5 o2 v) N
  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  ]& ^+ p" ~: [+ N% P. Z: \& v
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  9. [root@phoenix aaron]# exit#aaron
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  10. ( L% F" J1 ~0 C$ @
  11. #瑁桐隞歹銝閬氳oot
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  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  ]
    # W+ F+ }- b6 M+ X0 b5 H

  16. " S4 ]5 a5 f. a) t5 G3 ?
  17. #瑁susu -撌桀(Shell啣臬西)# ]0 U4 Y/ y0 q, ^- W8 j, Z
  18. [aaron@phoenix ~]$ su
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  19. Password:[頛詨叵oot撖蝣奭9 t" J, w6 _" x1 v4 |" T% G
  20. [root@phoenix aaron]# echo $PATH#訐ATH霈賂潛暸雿輻災aronPATH霈
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  21. /usr/local/bin:/bin:/usr/bin:/usr/local/sbin:/usr/sbin:/sbin:/home/aaron/bin# G; l+ ~, W8 {, W
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  23. [aaron@phoenix ~]$ su -
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  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
    % t; ^" l+ U. \" D! {3 Y
  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/ m1 o. h. U5 e5 y4 C# d4 f# P) c
  2. Password:[頛詨叵oot撖蝣奭
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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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  8. + R8 w0 Q+ \( P' S" }
  9. ## Allow users to run any commands anywhere7 Y# n! ]0 v/ x8 H0 b8 v; V
  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 restart
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  3. Stopping httpd:
      [, N2 K  }- p/ k
  4. rm: cannot remove `/var/run/httpd/httpd.pid': Permission denied, P, M7 O$ a3 y& n6 Y8 v2 _. `
  5. / ~! k6 X+ b$ O  H6 N# ~
  6. Starting httpd:
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  7. touch: cannot touch `/var/lock/subsys/httpd': Permission denied  |$ v2 [# D: d  O, O1 c8 f
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  9. #究udo撠勗臭誑
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  10. [aaron@phoenix ~]$ sudo service httpd restart9 r* \5 R7 q! L( x- n
  11. [sudo] password for aaron:[頛詨亙蝣奭
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  12. Stopping httpd:                                            [  OK  ]  ]2 [. m& ]9 X! ~1 X$ {
  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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