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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 6 R% l1 D: Y+ w/ u+ K
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su=switch user ,頧郢oot 撣唾& A0 a3 \( d9 _5 w- \& {3 t$ T, j
sudo 臭誑root甈瑁賊賭誘,靘憒: sudo service mysqld restart,抵隤芣憒銝:1 o8 @7 y& u1 G  y4 S+ q3 M2 c

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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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) u3 h; Z& O8 j9 Y# L1. 雿輻究u隞
  1. #究u雿輻刻% T+ ^9 e4 f  c
  2. [aaron@phoenix ~]$ su#雿輻究u氳oot, i, g: F1 K8 M) \9 |5 @
  3. Password:[頛詨叵oot撖蝣奭8 c) \1 r+ ]% k  x+ _1 e

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  5. [root@phoenix aaron]# service httpd restart#撌脣氳oot
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  6. Stopping httpd:                                            [  OK  ]" e+ c& T" O- ]
  7. Starting httpd:                                            [  OK  ]
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  9. [root@phoenix aaron]# exit#aaron& Z) h, e: k2 x9 {5 E
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  11. #瑁桐隞歹銝閬氳oot% j" [% E  ]7 a) @
  12. [aaron@phoenix ~]$ su -c "service httpd restart"
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  13. Password:[頛詨叵oot撖蝣奭3 i& R1 o+ \) [% `1 H3 a$ n& M
  14. Stopping httpd:                                            [  OK  ]! a# \: o% z0 t# I  @2 w
  15. Starting httpd:                                            [  OK  ]
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  17. #瑁susu -撌桀(Shell啣臬西)
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  18. [aaron@phoenix ~]$ su, r% b9 D9 s9 H# H5 ?
  19. Password:[頛詨叵oot撖蝣奭
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  20. [root@phoenix aaron]# echo $PATH#訐ATH霈賂潛暸雿輻災aronPATH霈; h# v, b6 `8 I# l8 J& W
  21. /usr/local/bin:/bin:/usr/bin:/usr/local/sbin:/usr/sbin:/sbin:/home/aaron/bin
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  23. [aaron@phoenix ~]$ su -
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  24. Password:[頛詨叵oot撖蝣奭; |9 o8 A: ~9 E' @$ c: V( \
  25. [root@phoenix aaron]# echo $PATH#訐ATH霈賂雿輻禿ootPATH霈( ]3 j$ c6 ]& W, e' g. A
  26. /usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin
銴鋆賭誨蝣

2 B7 d( s" E3 b; z3 J, r2. 閮剖sudoer
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  1. [aaron@phoenix ~]$ su  M% x& a8 O7 q9 D
  2. Password:[頛詨叵oot撖蝣奭8 S# W- C) u  Z$ ], Q9 l/ L% T* v+ d

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  4. [root@phoenix aaron]# vim /etc/sudoers
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  6. ## Allow root to run any commands anywhere& I! H* I, T* E; W2 S8 ]- P
  7. root    ALL=(ALL)       ALL
    / A6 |# ~6 {( ]. X

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  9. ## Allow users to run any commands anywhere+ c% @* V2 C  s1 i& {1 d0 U
  10. aaron   ALL=(ALL)       ALL#啣璇閮帶aron臭誑瑁蝞∠⊥
銴鋆賭誨蝣
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3. 蝭靘
  1. #瘝擃甈嚗隞亙停鋡急鈭
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  2. [aaron@phoenix ~]$ service httpd restart" _0 H4 l$ N- m0 I% F
  3. Stopping httpd:
    0 ]8 I$ ]# B1 ^7 m
  4. rm: cannot remove `/var/run/httpd/httpd.pid': Permission denied
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  5. ' e8 u' z5 l0 ~$ S8 o
  6. Starting httpd:# L2 ^8 U9 T9 s5 k( l  C
  7. touch: cannot touch `/var/lock/subsys/httpd': Permission denied
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  9. #究udo撠勗臭誑) }! _8 k+ ^# ~, n" g
  10. [aaron@phoenix ~]$ sudo service httpd restart) a9 c! Q; W. k4 O7 B
  11. [sudo] password for aaron:[頛詨亙蝣奭
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  12. Stopping httpd:                                            [  OK  ]' |" L% m! D# f: c+ c" y( W2 Y- k
  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∠⊥" @1 u+ r4 W& Q+ O
http://kezeodsnx.pixnet.net/blog/post/25810396

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