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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
4 B' F- D! k) I7 n! A5 t% Hsudo 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 5 n: s; |% h# a# _0 i. U
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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. + }5 |# v8 t3 o6 @, u9 s6 X
  5. [root@phoenix aaron]# service httpd restart#撌脣氳oot- n' w5 [" X  J
  6. Stopping httpd:                                            [  OK  ]
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  7. Starting httpd:                                            [  OK  ]2 R0 M5 s: ^) s5 b' o9 T# k1 G
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  9. [root@phoenix aaron]# exit#aaron
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  10. ! S# a3 ^5 H+ R  W9 o
  11. #瑁桐隞歹銝閬氳oot& u3 d; u8 ?) b* |7 k
  12. [aaron@phoenix ~]$ su -c "service httpd restart"/ ]6 p" L0 O) d$ z: C
  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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  17. #瑁susu -撌桀(Shell啣臬西)( y# l  A8 ~! A  n0 |% \2 |# Y; n
  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 $PATH#訐ATH霈賂潛暸雿輻災aronPATH霈
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  21. /usr/local/bin:/bin:/usr/bin:/usr/local/sbin:/usr/sbin:/sbin:/home/aaron/bin
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  22.   `# `6 [! }7 }- Q
  23. [aaron@phoenix ~]$ su -4 w7 {' ^( y7 X4 o
  24. Password:[頛詨叵oot撖蝣奭4 A3 W3 V- o  C3 O" ]% c
  25. [root@phoenix aaron]# echo $PATH#訐ATH霈賂雿輻禿ootPATH霈$ ^9 `* I/ \; k0 [/ u- f% I1 [7 l
  26. /usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin
銴鋆賭誨蝣

0 y9 P, d3 s* }, i! S, T2. 閮剖sudoer

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  1. [aaron@phoenix ~]$ su# T$ u: Y) c) d7 I/ v7 T
  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 anywhere3 f' u0 F  G0 N, e5 C
  7. root    ALL=(ALL)       ALL$ ?+ P* {9 ]7 `$ `% a; s

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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( T! p$ t) D& Q0 [- {
  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:
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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
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  11. [sudo] password for aaron:[頛詨亙蝣奭7 q0 R" B- z" M% p1 K+ k9 x& t" g' s- H
  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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