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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 |甇摨閬 |梯璅∪
砍敺 media 2014-12-21 14:12 蝺刻摩 . E. T. u: Z( ^7 Z
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su=switch user ,頧郢oot 撣唾  I0 k1 L0 r6 v" K% P* E" ?
sudo 臭誑root甈瑁賊賭誘,靘憒: sudo service mysqld restart,抵隤芣憒銝:
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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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5 g9 r5 P- ]& ]9 l- }0 F4 P1. 雿輻究u隞
  1. #究u雿輻刻/ b' u( k% q# E' H: ?- y
  2. [aaron@phoenix ~]$ su#雿輻究u氳oot
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  3. Password:[頛詨叵oot撖蝣奭
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  5. [root@phoenix aaron]# service httpd restart#撌脣氳oot
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  6. Stopping httpd:                                            [  OK  ]$ B. m7 h7 O3 G- P7 O
  7. Starting httpd:                                            [  OK  ]: _' }3 I' J- b8 ]% x" u

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  9. [root@phoenix aaron]# exit#aaron
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  11. #瑁桐隞歹銝閬氳oot2 c; c% `% h" s1 K6 ^
  12. [aaron@phoenix ~]$ su -c "service httpd restart"
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  13. Password:[頛詨叵oot撖蝣奭! x& [; @0 V) B5 b& }/ f
  14. Stopping httpd:                                            [  OK  ]
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  15. Starting httpd:                                            [  OK  ]) N1 v% J+ h/ P, n9 g" O
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  17. #瑁susu -撌桀(Shell啣臬西)
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  18. [aaron@phoenix ~]$ su, l, C8 \0 e' {, c& h
  19. Password:[頛詨叵oot撖蝣奭  A& V) ], a! K6 p& \) q! q- K
  20. [root@phoenix aaron]# echo $PATH#訐ATH霈賂潛暸雿輻災aronPATH霈* q3 R$ A" i8 \/ x5 N% n4 t
  21. /usr/local/bin:/bin:/usr/bin:/usr/local/sbin:/usr/sbin:/sbin:/home/aaron/bin/ ?8 ^1 i8 I3 R; @# I
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  23. [aaron@phoenix ~]$ su -3 [1 K( B) g+ G: r  @
  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  ^9 h. s3 b4 J: O3 S" L
  26. /usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin
銴鋆賭誨蝣

$ e; O# j; L' K! B+ o7 E2. 閮剖sudoer

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  1. [aaron@phoenix ~]$ su" h) t; A0 P$ ^9 i, m6 U2 E, Z. t
  2. Password:[頛詨叵oot撖蝣奭4 d9 d3 R( g/ ?# j# |
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  4. [root@phoenix aaron]# vim /etc/sudoers4 N* f( v2 Y0 P! V& n% i4 _* A

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  6. ## Allow root to run any commands anywhere4 I* f/ ?" u* A, W/ x- _
  7. root    ALL=(ALL)       ALL' Y  I. @* K' }
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  9. ## Allow users to run any commands anywhere% N  ~) K$ i. v& `
  10. aaron   ALL=(ALL)       ALL#啣璇閮帶aron臭誑瑁蝞∠⊥
銴鋆賭誨蝣

9 \6 p! R+ t" t. b3. 蝭靘
  1. #瘝擃甈嚗隞亙停鋡急鈭
    * z( A' \$ y6 G7 L; f8 W5 \; |
  2. [aaron@phoenix ~]$ service httpd restart; V) p" v9 x# L
  3. Stopping httpd:5 b3 k+ J$ ~3 b# k  M
  4. rm: cannot remove `/var/run/httpd/httpd.pid': Permission denied
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  6. Starting httpd:+ b6 X: [! N% X  w, G( d
  7. touch: cannot touch `/var/lock/subsys/httpd': Permission denied
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  8. 8 ]- [& m6 ~" ?# \
  9. #究udo撠勗臭誑3 l$ _% w! c$ N8 o+ W; B7 o% v" o
  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  ]8 `: _2 k; a2 l
  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∠⊥3 Z! M' [! n: D1 Z. \( y0 X: c5 ^
http://kezeodsnx.pixnet.net/blog/post/25810396

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