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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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3 B8 h9 Y2 D1 o' G* G" isu=switch user ,頧郢oot 撣唾
) S1 u. a3 ?' I, F% E! tsudo 臭誑root甈瑁賊賭誘,靘憒: sudo service mysqld restart,抵隤芣憒銝:9 s9 ?8 J: C' n* q8 Q

% }: I4 m; B$ H2 {9 {8 m
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1 ?8 m% `; u& q. W2 N1 r
  2. [aaron@phoenix ~]$ su#雿輻究u氳oot
    1 T9 c  I+ Y; A3 t8 I; b$ {& y
  3. Password:[頛詨叵oot撖蝣奭
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  4. ) ~. r; G/ \% `
  5. [root@phoenix aaron]# service httpd restart#撌脣氳oot
    ' _+ k6 i! S# f. X  M
  6. Stopping httpd:                                            [  OK  ]: V( b+ r% `8 Z. k
  7. Starting httpd:                                            [  OK  ]
    8 f$ [9 x1 n1 k5 {$ j) y
  8. 9 S5 Q8 u! G& n* w+ S
  9. [root@phoenix aaron]# exit#aaron
    9 N4 ^, d! ^. v+ k) R8 R

  10. 7 B- j0 P5 Y7 s1 v! H: W
  11. #瑁桐隞歹銝閬氳oot+ j4 o6 Z2 r* B+ ?
  12. [aaron@phoenix ~]$ su -c "service httpd restart"$ S# i) ?7 v+ x8 _/ W8 {) t  {
  13. Password:[頛詨叵oot撖蝣奭( f$ U6 |9 I  n  D5 R
  14. Stopping httpd:                                            [  OK  ]' j: m3 ]8 C. i+ n/ }" ^0 d* K/ G
  15. Starting httpd:                                            [  OK  ]
    + S" \4 J& y' f- `0 U
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  17. #瑁susu -撌桀(Shell啣臬西)/ ]8 G8 w4 ~' |8 o# u
  18. [aaron@phoenix ~]$ su
    - {& [! `% u2 B  |
  19. Password:[頛詨叵oot撖蝣奭
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  20. [root@phoenix aaron]# echo $PATH#訐ATH霈賂潛暸雿輻災aronPATH霈* y% s$ v4 V; E$ R: _! ^
  21. /usr/local/bin:/bin:/usr/bin:/usr/local/sbin:/usr/sbin:/sbin:/home/aaron/bin) K& i5 z* R' G. u; \" J8 Q& |! Y

  22. 0 q* \* U, X  O
  23. [aaron@phoenix ~]$ su -( Z1 l! r; ~) y, S
  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
    % q; z5 ~/ z. h: ?/ q
  26. /usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin
銴鋆賭誨蝣

; o4 e6 x3 \/ B, s% w2. 閮剖sudoer
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  1. [aaron@phoenix ~]$ su' M: H1 L1 U( P3 Q: p
  2. Password:[頛詨叵oot撖蝣奭1 r  V! V3 C/ o9 S* s5 f
  3. ) ~  k. U( N  X1 `
  4. [root@phoenix aaron]# vim /etc/sudoers! \: S% w, Q. {' ]

  5. 0 H; r  x& @  ~& O/ @
  6. ## Allow root to run any commands anywhere. S$ y5 E% h. V3 J: ]& {. C
  7. root    ALL=(ALL)       ALL
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  8. ' E/ U- t5 l* s0 p
  9. ## Allow users to run any commands anywhere
    # K& _- {! [9 h" W' {
  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+ R2 E6 b/ Q, S3 ~2 a4 p
  3. Stopping httpd:
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  4. rm: cannot remove `/var/run/httpd/httpd.pid': Permission denied
    0 Z# I3 ~5 I) F; [) x

  5. ' T  }% N6 x' g# f/ d. J
  6. Starting httpd:
    ; i3 j( c: `+ m& v5 ^: q7 W5 H$ A
  7. touch: cannot touch `/var/lock/subsys/httpd': Permission denied
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  9. #究udo撠勗臭誑' i2 s( ]+ }% h* S5 c6 Y0 W3 v) H
  10. [aaron@phoenix ~]$ sudo service httpd restart6 C3 M' E( j" }% x+ ~, L
  11. [sudo] password for aaron:[頛詨亙蝣奭
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  12. Stopping httpd:                                            [  OK  ]" G/ \' x( a; I( ~( A3 `4 T1 U
  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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