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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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- ?' z  X% g& [su=switch user ,頧郢oot 撣唾
: d2 Q, g5 ?  tsudo 臭誑root甈瑁賊賭誘,靘憒: sudo service mysqld restart,抵隤芣憒銝:: ~; N. v0 E# x6 W/ N
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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8 ?7 ^# s2 |1 l- l! R5 l
  2. [aaron@phoenix ~]$ su#雿輻究u氳oot
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  3. Password:[頛詨叵oot撖蝣奭7 ^5 K$ U; W0 g+ k4 R6 G
  4. " q$ E* I. ~" [8 _3 W; n
  5. [root@phoenix aaron]# service httpd restart#撌脣氳oot8 ~* t" \" m* s$ }) y
  6. Stopping httpd:                                            [  OK  ]
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  7. Starting httpd:                                            [  OK  ]6 Q4 r7 [: B- ?& `5 \7 i+ B
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  9. [root@phoenix aaron]# exit#aaron, c* c% q3 p6 X

  10. / o  ~# p0 ?0 n4 t6 p0 ^# e6 C, h2 \
  11. #瑁桐隞歹銝閬氳oot( b% I' u. |* ~1 J
  12. [aaron@phoenix ~]$ su -c "service httpd restart"
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  13. Password:[頛詨叵oot撖蝣奭
    $ S4 \: R+ A; e# r
  14. Stopping httpd:                                            [  OK  ]3 R, [& P) ]6 r* @/ {) |
  15. Starting httpd:                                            [  OK  ]
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  16. 5 L" [: E. j( M+ X, t& L+ z
  17. #瑁susu -撌桀(Shell啣臬西)
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  18. [aaron@phoenix ~]$ su: }: f* c$ N. r4 y+ \$ W4 n' k
  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/bin6 T  }* h( z' T3 q: g

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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 $PATH#訐ATH霈賂雿輻禿ootPATH霈% w2 c; o3 g- E% V
  26. /usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin
銴鋆賭誨蝣
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2. 閮剖sudoer
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  1. [aaron@phoenix ~]$ su3 i' U4 l5 u/ V* N. J# \& p6 v
  2. Password:[頛詨叵oot撖蝣奭1 |: T6 \7 v' S
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  4. [root@phoenix aaron]# vim /etc/sudoers2 j! _7 S9 a, v
  5.   h0 y2 r0 M; {, t
  6. ## Allow root to run any commands anywhere0 D' L) _. b* d0 w! ?$ t% e, k8 y
  7. root    ALL=(ALL)       ALL
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  8. $ D" h3 G( [* U  l; c( j! E& V0 A
  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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  1. #瘝擃甈嚗隞亙停鋡急鈭. {* A# ]; u9 R6 b. a: _7 r7 |2 e
  2. [aaron@phoenix ~]$ service httpd restart
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  3. Stopping httpd:6 I! S3 `- @5 B) x
  4. rm: cannot remove `/var/run/httpd/httpd.pid': Permission denied
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  5. 5 i( ?. k* O, s3 ?7 {0 R8 j
  6. Starting httpd:# D( q6 Z9 b1 A$ j
  7. touch: cannot touch `/var/lock/subsys/httpd': Permission denied
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  8. # f5 o, i, v! ~: s
  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& ^- B9 Z- [* |& u" |9 k. T7 P
  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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