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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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$ c( C# Q: D# l8 H+ vsu=switch user ,頧郢oot 撣唾3 Y3 l* E' U( t; I( o! v0 y; T# S
sudo 臭誑root甈瑁賊賭誘,靘憒: sudo service mysqld restart,抵隤芣憒銝:- y' q2 q/ Y5 G3 \
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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: Z/ r; _. @8 x3 ]) o" H
  2. [aaron@phoenix ~]$ su#雿輻究u氳oot
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  3. Password:[頛詨叵oot撖蝣奭  Q$ C5 V7 x+ Q9 l. d! S% v. }  i/ e# r3 f

  4. 7 L, ]+ s" V& p8 e$ D2 ?( l9 H
  5. [root@phoenix aaron]# service httpd restart#撌脣氳oot3 q' v' k. y1 e( Y. ?
  6. Stopping httpd:                                            [  OK  ]- F; e" z0 Q3 V. I2 |+ r& y: H
  7. Starting httpd:                                            [  OK  ]
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  8. + M/ C: E1 j4 l9 h
  9. [root@phoenix aaron]# exit#aaron
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  10. # r3 Z2 S: Q5 }( [% `; p
  11. #瑁桐隞歹銝閬氳oot
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  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  ]
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  15. Starting httpd:                                            [  OK  ]
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  16.   H& W. S5 _8 n
  17. #瑁susu -撌桀(Shell啣臬西)1 i6 z5 A* |# M4 r4 b( W+ }! `8 v; o
  18. [aaron@phoenix ~]$ su
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  19. Password:[頛詨叵oot撖蝣奭- h. d3 Z$ n1 U
  20. [root@phoenix aaron]# echo $PATH#訐ATH霈賂潛暸雿輻災aronPATH霈
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  21. /usr/local/bin:/bin:/usr/bin:/usr/local/sbin:/usr/sbin:/sbin:/home/aaron/bin
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  22. 3 n9 y7 U: |6 B$ R9 D
  23. [aaron@phoenix ~]$ su -# h) d. G# x& |, p) X
  24. Password:[頛詨叵oot撖蝣奭
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  25. [root@phoenix aaron]# echo $PATH#訐ATH霈賂雿輻禿ootPATH霈4 b, `/ T$ S- ]. k: _0 @
  26. /usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin
銴鋆賭誨蝣

2 x8 o3 H! O4 c7 v2. 閮剖sudoer

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  1. [aaron@phoenix ~]$ su! O. E1 _# U/ s, K. c7 h/ w8 h8 z9 ~& ?0 y
  2. Password:[頛詨叵oot撖蝣奭
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  3. ' e, [% s* s1 _% d6 o* ~
  4. [root@phoenix aaron]# vim /etc/sudoers# |# _$ Z; a# O
  5. ) G5 e% r5 x/ }
  6. ## Allow root to run any commands anywhere0 m8 g# x+ N" A
  7. root    ALL=(ALL)       ALL( p) c/ |4 }. g# a5 p" X# u; Y, u' o
  8. ! ~3 U1 Y( @3 z* y
  9. ## Allow users to run any commands anywhere$ H5 s. s" i# D' G' f/ p. g
  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
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  3. Stopping httpd:7 ~* w* O3 r6 x2 h1 N3 e- p0 V
  4. rm: cannot remove `/var/run/httpd/httpd.pid': Permission denied3 v5 }; n' _+ o- A; l

  5. 4 M6 x4 x7 H" i7 B% z! {' O
  6. Starting httpd:5 R8 C# ^. Q4 g' b1 y; G
  7. touch: cannot touch `/var/lock/subsys/httpd': Permission denied2 l4 B" o. {; e2 W' T

  8.   D* ]- U7 a( y- T& G
  9. #究udo撠勗臭誑
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  10. [aaron@phoenix ~]$ sudo service httpd restart  ^; p! }4 Q& B7 G& m7 l4 {
  11. [sudo] password for aaron:[頛詨亙蝣奭
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  12. Stopping httpd:                                            [  OK  ]
    # o3 M) Z$ ^& a2 U7 |" d) I
  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

雿輻券

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