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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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su=switch user ,頧郢oot 撣唾5 m: U+ C! {6 c( X5 d! x, \4 t1 h
sudo 臭誑root甈瑁賊賭誘,靘憒: sudo service mysqld restart,抵隤芣憒銝:3 G1 u& s6 p( u

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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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- |8 p5 O+ o3 J5 _6 X1. 雿輻究u隞
  1. #究u雿輻刻3 L2 q% `/ Z: B
  2. [aaron@phoenix ~]$ su#雿輻究u氳oot  d" \0 E- ~& a; U- F7 X! a
  3. Password:[頛詨叵oot撖蝣奭# \" I% K! @6 Y6 e
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  5. [root@phoenix aaron]# service httpd restart#撌脣氳oot
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  6. Stopping httpd:                                            [  OK  ]" n; c, ~& O" U* v. x
  7. Starting httpd:                                            [  OK  ]6 ^1 D! L5 f) }2 i/ n7 ~  ?+ m8 N
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  9. [root@phoenix aaron]# exit#aaron* X  l) V% }& [% F) K/ y6 l, n
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  11. #瑁桐隞歹銝閬氳oot( Z1 R$ V* b$ O+ [
  12. [aaron@phoenix ~]$ su -c "service httpd restart"0 U& [) C: g& g8 V& j
  13. Password:[頛詨叵oot撖蝣奭+ b2 |5 {1 e2 ?$ r  @0 ?, k
  14. Stopping httpd:                                            [  OK  ]
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  15. Starting httpd:                                            [  OK  ]
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  16. 6 \  s! L+ v5 D' t6 s
  17. #瑁susu -撌桀(Shell啣臬西)
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  18. [aaron@phoenix ~]$ su/ E3 o) w) K- B
  19. Password:[頛詨叵oot撖蝣奭" {3 Z6 f! h0 ?3 G  ~( x% I
  20. [root@phoenix aaron]# echo $PATH#訐ATH霈賂潛暸雿輻災aronPATH霈! y# l/ R. Y5 @' j# [9 h4 J& i
  21. /usr/local/bin:/bin:/usr/bin:/usr/local/sbin:/usr/sbin:/sbin:/home/aaron/bin
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  22. * I/ ]3 _2 p( Y0 t+ }3 q2 q
  23. [aaron@phoenix ~]$ su -
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  24. Password:[頛詨叵oot撖蝣奭4 a) C. Q- k" T
  25. [root@phoenix aaron]# echo $PATH#訐ATH霈賂雿輻禿ootPATH霈
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  26. /usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin
銴鋆賭誨蝣

; L7 I6 ?$ ^, M4 Y) I4 g2. 閮剖sudoer
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  1. [aaron@phoenix ~]$ su
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  2. Password:[頛詨叵oot撖蝣奭
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  3. # r$ Z4 n( V, l5 \, e9 u
  4. [root@phoenix aaron]# vim /etc/sudoers
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  6. ## Allow root to run any commands anywhere
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  7. root    ALL=(ALL)       ALL0 s2 z5 L% s" E2 C# X! i: F( [
  8. # B/ J0 d( x* h! J' t0 `3 o
  9. ## Allow users to run any commands anywhere/ A3 n2 C' y0 b# C4 k% P
  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, p9 y: N, f5 ?. j
  2. [aaron@phoenix ~]$ service httpd restart/ J& c5 e  v1 i5 I
  3. Stopping httpd:3 c# W2 \4 i8 ?4 L2 |
  4. rm: cannot remove `/var/run/httpd/httpd.pid': Permission denied
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  5. # A) D7 B$ q/ X) \# k
  6. Starting httpd:
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  7. touch: cannot touch `/var/lock/subsys/httpd': Permission denied
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  8. , W2 C% q- E7 C# Z
  9. #究udo撠勗臭誑
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  10. [aaron@phoenix ~]$ sudo service httpd restart5 y6 [3 c5 C9 x- R) j& S5 ?0 t7 F
  11. [sudo] password for aaron:[頛詨亙蝣奭* k7 T# n' D7 z( X- ], a
  12. Stopping httpd:                                            [  OK  ]; G3 G) f# b' H0 E4 h1 m
  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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