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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 x* m+ D4 u( p) z8 G$ G, Fsu=switch user ,頧郢oot 撣唾1 ?% j; G) C( S1 h
sudo 臭誑root甈瑁賊賭誘,靘憒: sudo service mysqld restart,抵隤芣憒銝:. l% w# @; L3 _( \

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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 ) _6 H4 i5 E* g) ]8 S% L
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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) m9 s# f( [0 b9 y
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  5. [root@phoenix aaron]# service httpd restart#撌脣氳oot
    # ^7 ^6 J& D4 V% K4 T- v/ g9 b
  6. Stopping httpd:                                            [  OK  ]1 L' F+ G$ E& C! A+ i0 ?" ?/ w, r
  7. Starting httpd:                                            [  OK  ]4 Q5 H5 L9 r6 h7 A" u8 {
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  9. [root@phoenix aaron]# exit#aaron
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  10. * W1 q: n) g  ?
  11. #瑁桐隞歹銝閬氳oot5 ^" d1 v2 ]2 t; |
  12. [aaron@phoenix ~]$ su -c "service httpd restart"
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  13. Password:[頛詨叵oot撖蝣奭( s5 l/ {7 e& S7 n' V$ t
  14. Stopping httpd:                                            [  OK  ]+ W8 G( N4 X) q+ k
  15. Starting httpd:                                            [  OK  ]3 i/ ^* r* _! i% @1 t

  16. 6 ~1 E! u' B! t2 ]; w
  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
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  20. [root@phoenix aaron]# echo $PATH#訐ATH霈賂潛暸雿輻災aronPATH霈
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  21. /usr/local/bin:/bin:/usr/bin:/usr/local/sbin:/usr/sbin:/sbin:/home/aaron/bin) L4 q6 P' N8 q
  22. 6 Y/ @1 R: B' x9 {# w4 K1 o# ?+ T
  23. [aaron@phoenix ~]$ su -6 Q; Y7 n- `3 U: c1 M' t
  24. Password:[頛詨叵oot撖蝣奭  d& m1 ^- D* @: x& I6 ?
  25. [root@phoenix aaron]# echo $PATH#訐ATH霈賂雿輻禿ootPATH霈. d! M7 m* n0 X& Y1 l9 q
  26. /usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin
銴鋆賭誨蝣

2 o" f2 G7 Z% ~. o4 n2. 閮剖sudoer

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  1. [aaron@phoenix ~]$ su& j/ s# R4 F0 b2 O" I
  2. Password:[頛詨叵oot撖蝣奭
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  4. [root@phoenix aaron]# vim /etc/sudoers  c$ U2 P- n3 J& v" G6 d, I9 x  ]8 P
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  6. ## Allow root to run any commands anywhere' L, d0 k0 W/ T, s
  7. root    ALL=(ALL)       ALL  G' Y1 ^; B4 \- ^# A; i: Y$ P- M
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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

% x1 C3 W& f5 ]' `( M3 z2 c3. 蝭靘
  1. #瘝擃甈嚗隞亙停鋡急鈭
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  2. [aaron@phoenix ~]$ service httpd restart* `+ g4 I2 [" f7 [+ f* a. C; Y
  3. Stopping httpd:2 u  U: C/ h! s
  4. rm: cannot remove `/var/run/httpd/httpd.pid': Permission denied7 ]0 n4 l* @9 h; v
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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# R% o- W, @3 @* @. ~+ H
  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∠⊥( ^% G! U( ^# Z% c1 v( W$ ^- L# Q
http://kezeodsnx.pixnet.net/blog/post/25810396

雿輻券

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