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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
& F( \* g! d$ \
' p* `+ S5 W, m5 ]) Asu=switch user ,頧郢oot 撣唾
* q; ^  e: `  I. v6 k! fsudo 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 1 T  }4 W2 f+ v8 \: `7 Z) c

" c3 Y/ @# l: |& F! Z; T1. 雿輻究u隞
  1. #究u雿輻刻
    " k( u: D  I# W- }) j  U
  2. [aaron@phoenix ~]$ su#雿輻究u氳oot+ @4 `& ]- D' i: M  x% n1 x
  3. Password:[頛詨叵oot撖蝣奭/ E# e/ k7 ?: m+ A1 v4 n- X. R

  4. 8 }+ v3 P! }; \$ u  f
  5. [root@phoenix aaron]# service httpd restart#撌脣氳oot2 Y. q* l$ {0 j' L
  6. Stopping httpd:                                            [  OK  ]' ~/ s5 A! I7 z
  7. Starting httpd:                                            [  OK  ]
    ) b" o9 H6 o% O
  8. / }# ?9 P) u; e1 F& {( w% m6 e9 {( i
  9. [root@phoenix aaron]# exit#aaron
    ! ^, V! R" M: C8 [  m6 j
  10. ! x- g& {0 n! o! K1 ^" w
  11. #瑁桐隞歹銝閬氳oot$ y# P( Q, W& B7 v/ v, \$ T
  12. [aaron@phoenix ~]$ su -c "service httpd restart") F9 Y% \% g; `% P7 g
  13. Password:[頛詨叵oot撖蝣奭9 T1 n4 y. N' l: X% N
  14. Stopping httpd:                                            [  OK  ]
      w+ \& k: M; y+ E. r0 c' ^5 M3 l
  15. Starting httpd:                                            [  OK  ]3 c9 w  E, }; a1 ]

  16. ; A+ s1 D# e, ^8 t8 I" S+ V
  17. #瑁susu -撌桀(Shell啣臬西)
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  18. [aaron@phoenix ~]$ su
    : ]* a$ p. T1 Q- {6 Q
  19. Password:[頛詨叵oot撖蝣奭
    2 q+ [) H7 @* q
  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( q; ?* Q2 R8 K/ H: E

  22. 0 r3 J# u( S( F1 _
  23. [aaron@phoenix ~]$ su -  ^; r0 c. ?7 p( p/ _; x& J
  24. Password:[頛詨叵oot撖蝣奭  \* q& ^# a$ g2 r: f+ A- e
  25. [root@phoenix aaron]# echo $PATH#訐ATH霈賂雿輻禿ootPATH霈: P- d0 f% ~7 s' u
  26. /usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin
銴鋆賭誨蝣

1 F# s5 r. ?8 ?( G5 B2. 閮剖sudoer
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  1. [aaron@phoenix ~]$ su
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  2. Password:[頛詨叵oot撖蝣奭- I: I. o7 x8 R- L
  3. , y1 g8 S% C" D9 @/ v9 X  `7 S( O/ `
  4. [root@phoenix aaron]# vim /etc/sudoers; D2 ]1 w2 V3 Z! `6 d

  5. ; l6 J0 J- T$ B$ _0 r6 a0 e
  6. ## Allow root to run any commands anywhere
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  7. root    ALL=(ALL)       ALL8 Q, u" \% s* a2 g/ P
  8. / i2 h0 c4 ~7 L9 C2 ~4 U6 I
  9. ## Allow users to run any commands anywhere, L& Z. O+ f' s! A8 g$ l& l# b" @
  10. aaron   ALL=(ALL)       ALL#啣璇閮帶aron臭誑瑁蝞∠⊥
銴鋆賭誨蝣

6 b) y, F1 k: y- k2 x' ~/ g3. 蝭靘
  1. #瘝擃甈嚗隞亙停鋡急鈭
    7 S4 \  v4 O2 ?1 U: R
  2. [aaron@phoenix ~]$ service httpd restart' @' t" J% K. c/ m9 L& p9 [* w
  3. Stopping httpd:
    & R+ |  U3 E; |% z+ j% a6 e& S
  4. rm: cannot remove `/var/run/httpd/httpd.pid': Permission denied
    & O) r. M" I; I) |- t  V; a

  5. / S0 x6 @% h" w0 A' l6 `
  6. Starting httpd:
    : j) M6 M4 |! q& \% Z2 D
  7. touch: cannot touch `/var/lock/subsys/httpd': Permission denied
    ) Q$ n5 l5 z, L

  8. 5 V1 P9 p! z4 H7 J' _
  9. #究udo撠勗臭誑, ^5 z5 P. A+ L7 ?. X+ K) p
  10. [aaron@phoenix ~]$ sudo service httpd restart
    ( Y1 z' z, T( W$ R* j4 G7 U  {% r
  11. [sudo] password for aaron:[頛詨亙蝣奭
    ' B0 e3 G! t. a' }- \$ ~1 m' w2 n
  12. Stopping httpd:                                            [  OK  ]  O$ M: S1 s& o% j
  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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