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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  c& d! m9 E+ T# p7 W- ]
sudo 臭誑root甈瑁賊賭誘,靘憒: sudo service mysqld restart,抵隤芣憒銝:% U* n4 }0 i% a$ g' b9 k! X

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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 9 u0 l. j2 v# x- i3 R: k

4 L+ v' I0 F# ?1. 雿輻究u隞
  1. #究u雿輻刻5 M5 g8 [1 Q- y( @8 q
  2. [aaron@phoenix ~]$ su#雿輻究u氳oot
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  3. Password:[頛詨叵oot撖蝣奭- C3 [, o, s. L% `; D. q8 q* I

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  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  ]' Q& b8 n! {, ]. u6 J7 ]4 m& p
  8. 2 {$ _5 R3 i  S6 v
  9. [root@phoenix aaron]# exit#aaron. z' m/ i# [, ?' }( x
  10. & A3 L5 J3 I& L3 n1 V
  11. #瑁桐隞歹銝閬氳oot8 O0 q& j7 a) u, ?1 Y& X
  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  ]- f( ^1 z6 \' A9 n
  15. Starting httpd:                                            [  OK  ]
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  16. , x4 U: [% K+ @9 c
  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# a0 \: v- ~( X& [! j4 M
  20. [root@phoenix aaron]# echo $PATH#訐ATH霈賂潛暸雿輻災aronPATH霈
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  21. /usr/local/bin:/bin:/usr/bin:/usr/local/sbin:/usr/sbin:/sbin:/home/aaron/bin
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  22. 5 O3 b- _" R/ Y, r4 X! w
  23. [aaron@phoenix ~]$ su -* T. _  p# s; L8 Q
  24. Password:[頛詨叵oot撖蝣奭2 U1 W: |. }9 u1 L3 j6 u9 h6 e6 O
  25. [root@phoenix aaron]# echo $PATH#訐ATH霈賂雿輻禿ootPATH霈$ S  L$ T4 r# S. \
  26. /usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin
銴鋆賭誨蝣

* R! J5 e* U( W- @( H/ q2. 閮剖sudoer

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  1. [aaron@phoenix ~]$ su6 D3 |* T) q" ]/ e% U1 x+ x  y
  2. Password:[頛詨叵oot撖蝣奭+ k9 v5 u1 E3 f0 r4 O1 P

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  4. [root@phoenix aaron]# vim /etc/sudoers
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  5. . @: D6 Y( v0 v& m% k; ^
  6. ## Allow root to run any commands anywhere
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  7. root    ALL=(ALL)       ALL" O5 @- a3 x* a5 p

  8. 3 R% v; G0 I+ E) ~# H4 Q( v
  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

5 R, a* P% ^; j# o# O3. 蝭靘
  1. #瘝擃甈嚗隞亙停鋡急鈭
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  2. [aaron@phoenix ~]$ service httpd restart" T! j: D/ g7 m( B" f
  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:7 S& Z3 {$ g# g4 A- c
  7. touch: cannot touch `/var/lock/subsys/httpd': Permission denied
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  8. 4 n, Z6 @0 x/ J. G6 p; `$ g2 p
  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∠⊥2 a6 \: O) }  c7 c9 l! z
http://kezeodsnx.pixnet.net/blog/post/25810396

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