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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 & k' @9 `% f) d$ d6 B, x& J, ~, M

0 N/ V% R4 L4 E5 D: }0 Zsu=switch user ,頧郢oot 撣唾9 ~: i4 V. \$ @
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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' l) i2 H% m( L2 t2 N( K8 ^6 j1. 雿輻究u隞
  1. #究u雿輻刻
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  2. [aaron@phoenix ~]$ su#雿輻究u氳oot2 B1 @8 A) o# {$ H9 n* i- x
  3. Password:[頛詨叵oot撖蝣奭) l8 c- n# L- Y3 O; }  l. @/ v
  4. 7 _  f! T& g. M) s. R
  5. [root@phoenix aaron]# service httpd restart#撌脣氳oot7 N0 h% C; U$ m8 F2 X
  6. Stopping httpd:                                            [  OK  ]+ W( ^/ E0 z9 p
  7. Starting httpd:                                            [  OK  ]
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  8.   r, E  M+ w8 S
  9. [root@phoenix aaron]# exit#aaron' _  `3 i0 B+ _# e

  10. 0 M% Q' j1 N+ y9 Q( N% ^* M
  11. #瑁桐隞歹銝閬氳oot9 H# c! p$ S; v4 y& A7 ^
  12. [aaron@phoenix ~]$ su -c "service httpd restart"* j" R( R- d. w
  13. Password:[頛詨叵oot撖蝣奭- }8 o* Z+ g  h7 {& L% F
  14. Stopping httpd:                                            [  OK  ]
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  15. Starting httpd:                                            [  OK  ]
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  16. ' z: k/ L& u3 n( H5 K4 N
  17. #瑁susu -撌桀(Shell啣臬西)% Y9 T* o4 J- c
  18. [aaron@phoenix ~]$ su
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  19. Password:[頛詨叵oot撖蝣奭6 h/ M3 F  E/ B5 S
  20. [root@phoenix aaron]# echo $PATH#訐ATH霈賂潛暸雿輻災aronPATH霈& \  z6 z$ U# U+ ~  |% ?! P
  21. /usr/local/bin:/bin:/usr/bin:/usr/local/sbin:/usr/sbin:/sbin:/home/aaron/bin8 r3 Z$ k1 Y  o. e, q+ s) b
  22. ) X9 r. G; m9 g$ }: w
  23. [aaron@phoenix ~]$ su -
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  24. Password:[頛詨叵oot撖蝣奭! f( v/ Q6 r1 i+ U! f# \
  25. [root@phoenix aaron]# echo $PATH#訐ATH霈賂雿輻禿ootPATH霈2 Y5 n9 p; B3 m- n' Y
  26. /usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin
銴鋆賭誨蝣
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2. 閮剖sudoer

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  1. [aaron@phoenix ~]$ su- E9 R- s9 \: z: N* r' W
  2. Password:[頛詨叵oot撖蝣奭
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  3. 8 A! r, F- O! R" P4 H! e- m( P
  4. [root@phoenix aaron]# vim /etc/sudoers
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  5. $ E* M( y' m2 t/ S; E- m, T
  6. ## Allow root to run any commands anywhere
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  7. root    ALL=(ALL)       ALL
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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

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  1. #瘝擃甈嚗隞亙停鋡急鈭
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  2. [aaron@phoenix ~]$ service httpd restart0 E& A" b4 l7 _
  3. Stopping httpd:
    $ `2 h& X3 \) Q9 q1 u% c9 P: q
  4. rm: cannot remove `/var/run/httpd/httpd.pid': Permission denied, z. L7 N$ S" p7 ]

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  6. Starting httpd:
    # A) T4 g6 S- }8 P8 |6 h4 _
  7. touch: cannot touch `/var/lock/subsys/httpd': Permission denied
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  8. " X" @8 x9 m4 D7 o$ U
  9. #究udo撠勗臭誑+ \4 w" B/ A) F# C/ q( y
  10. [aaron@phoenix ~]$ sudo service httpd restart
    3 F! ?4 T8 B6 A- Y. c' {; T! j
  11. [sudo] password for aaron:[頛詨亙蝣奭% S6 a# c7 s3 Q) a# f7 n
  12. Stopping httpd:                                            [  OK  ]' D# E; W6 S& {; w* T3 C
  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∠⊥. w- N* k4 s6 S" D' G1 y
http://kezeodsnx.pixnet.net/blog/post/25810396

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