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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  I) g/ D9 v1 ?8 b0 \! C3 K
sudo 臭誑root甈瑁賊賭誘,靘憒: sudo service mysqld restart,抵隤芣憒銝:9 Z' {4 F# G2 |

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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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( b8 m' x) d' t& E: E$ X1 G1. 雿輻究u隞
  1. #究u雿輻刻
    % ?$ S# q; V4 q" [# k
  2. [aaron@phoenix ~]$ su#雿輻究u氳oot
    . \; I: b2 t+ q, y
  3. Password:[頛詨叵oot撖蝣奭
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  5. [root@phoenix aaron]# service httpd restart#撌脣氳oot6 b# ]0 j! r# O  D" p% ]/ i
  6. Stopping httpd:                                            [  OK  ]
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  7. Starting httpd:                                            [  OK  ]
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  9. [root@phoenix aaron]# exit#aaron9 f5 u/ [3 R* C

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  11. #瑁桐隞歹銝閬氳oot! W, ]& b- m$ R. ]7 q
  12. [aaron@phoenix ~]$ su -c "service httpd restart"
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  13. Password:[頛詨叵oot撖蝣奭" D8 \5 ]' w& `& z5 H$ ^5 x
  14. Stopping httpd:                                            [  OK  ]8 G2 ?3 `% y9 q
  15. Starting httpd:                                            [  OK  ]3 b  R9 t6 j) [% L, T$ x
  16. + x8 W  r& m2 J5 p
  17. #瑁susu -撌桀(Shell啣臬西): e4 v: ]9 @+ L2 @5 ^7 I1 v2 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 $PATH#訐ATH霈賂潛暸雿輻災aronPATH霈
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  21. /usr/local/bin:/bin:/usr/bin:/usr/local/sbin:/usr/sbin:/sbin:/home/aaron/bin
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  23. [aaron@phoenix ~]$ su -8 w' t0 I4 k% k9 U
  24. Password:[頛詨叵oot撖蝣奭* M3 K& N9 U5 Q6 y4 f
  25. [root@phoenix aaron]# echo $PATH#訐ATH霈賂雿輻禿ootPATH霈) G6 Y5 R* }9 ~% E& J( L
  26. /usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin
銴鋆賭誨蝣

+ ^2 ^: G" N4 R8 b6 p& ]- u1 ^2 L3 a3 z3 R2. 閮剖sudoer
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  1. [aaron@phoenix ~]$ su" q: [0 d0 g6 R0 @* ^$ |
  2. Password:[頛詨叵oot撖蝣奭! O, {9 C- @  L' R1 R
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  4. [root@phoenix aaron]# vim /etc/sudoers3 j9 C2 s! H7 |0 s
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  6. ## Allow root to run any commands anywhere7 g  t. {& V9 s/ T0 N& Q
  7. root    ALL=(ALL)       ALL2 ~+ |: u4 e& w( h+ u8 x3 g; [
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  9. ## Allow users to run any commands anywhere/ f2 T* T/ D( l: X& X0 H8 p
  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" d, O( j5 I7 M+ Q  g7 \3 P! u
  2. [aaron@phoenix ~]$ service httpd restart! w' n& H2 Y' m2 E
  3. Stopping httpd:7 T: f! y# n4 Q0 X0 ^" |. u- b
  4. rm: cannot remove `/var/run/httpd/httpd.pid': Permission denied7 ^6 X* O7 l1 J) g  P9 S8 ?

  5. ! ~+ d2 t( S& p) h0 E
  6. Starting httpd:- I9 c( Y) Y- W, |% R
  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
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  12. Stopping httpd:                                            [  OK  ]: F  X" j: |# X0 J
  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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