砍敺 media 2014-12-21 14:12 蝺刻摩
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su=switch user ,頧郢oot 撣唾 c& d! m9 E+ T# p7 W- ]
sudo 臭誑root甈瑁賊賭誘,靘憒: sudo service mysqld restart,抵隤芣憒銝:% U* n4 }0 i% a$ g' b9 k! X
5 q' T" E# K8 F8 N/ D0 aLinux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 9 u0 l. j2 v# x- i3 R: k
4 L+ v' I0 F# ?1. 雿輻究u隞 - #究u雿輻刻5 M5 g8 [1 Q- y( @8 q
- [aaron@phoenix ~]$ su#雿輻究u氳oot
9 ~) h) \3 J) P2 ?% ?* D - Password:[頛詨叵oot撖蝣奭- C3 [, o, s. L% `; D. q8 q* I
+ X, @' r- n' z9 {# h: c; A- [root@phoenix aaron]# service httpd restart#撌脣氳oot
- Q( E' p3 E' d+ p- F - Stopping httpd: [ OK ]
; R2 H# V$ H3 |( w3 F7 j0 P - Starting httpd: [ OK ]' Q& b8 n! {, ]. u6 J7 ]4 m& p
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- [root@phoenix aaron]# exit#aaron. z' m/ i# [, ?' }( x
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- #瑁桐隞歹銝閬氳oot8 O0 q& j7 a) u, ?1 Y& X
- [aaron@phoenix ~]$ su -c "service httpd restart"
4 `* m0 p/ R" Y3 T - Password:[頛詨叵oot撖蝣奭
2 C* \* _7 d' Z0 h - Stopping httpd: [ OK ]- f( ^1 z6 \' A9 n
- Starting httpd: [ OK ]
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- #瑁susu -撌桀(Shell啣臬西)
! N2 v: r- |- A% S/ u2 G. e - [aaron@phoenix ~]$ su
7 Y' R; m, U& L) T% J2 } - Password:[頛詨叵oot撖蝣奭# a0 \: v- ~( X& [! j4 M
- [root@phoenix aaron]# echo $PATH#訐ATH霈賂潛暸雿輻災aronPATH霈
3 N5 T( M: e' F - /usr/local/bin:/bin:/usr/bin:/usr/local/sbin:/usr/sbin:/sbin:/home/aaron/bin
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- [aaron@phoenix ~]$ su -* T. _ p# s; L8 Q
- Password:[頛詨叵oot撖蝣奭2 U1 W: |. }9 u1 L3 j6 u9 h6 e6 O
- [root@phoenix aaron]# echo $PATH#訐ATH霈賂雿輻禿ootPATH霈$ S L$ T4 r# S. \
- /usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin
銴鋆賭誨蝣
* R! J5 e* U( W- @( H/ q2. 閮剖sudoer
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- [aaron@phoenix ~]$ su6 D3 |* T) q" ]/ e% U1 x+ x y
- Password:[頛詨叵oot撖蝣奭+ k9 v5 u1 E3 f0 r4 O1 P
8 O6 G4 ~' C- L d/ B R" |& S6 P- [root@phoenix aaron]# vim /etc/sudoers
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- ## Allow root to run any commands anywhere
5 x% r3 b2 n) u; e% ^ - root ALL=(ALL) ALL" O5 @- a3 x* a5 p
3 R% v; G0 I+ E) ~# H4 Q( v- ## Allow users to run any commands anywhere
5 ~9 v( B9 d1 l$ H) Y( c - aaron ALL=(ALL) ALL#啣璇閮帶aron臭誑瑁蝞∠⊥
銴鋆賭誨蝣
5 R, a* P% ^; j# o# O3. 蝭靘- #瘝擃甈嚗隞亙停鋡急鈭
* d( b7 f" S. @( Z- l6 o8 s; N - [aaron@phoenix ~]$ service httpd restart" T! j: D/ g7 m( B" f
- Stopping httpd:
# Q7 F2 @+ }7 X9 }2 I* B! y' E - rm: cannot remove `/var/run/httpd/httpd.pid': Permission denied
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- Starting httpd:7 S& Z3 {$ g# g4 A- c
- touch: cannot touch `/var/lock/subsys/httpd': Permission denied
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4 n, Z6 @0 x/ J. G6 p; `$ g2 p- #究udo撠勗臭誑
. Q/ m- t5 P/ f7 y, T - [aaron@phoenix ~]$ sudo service httpd restart
/ y/ X M9 F0 @8 ^ - [sudo] password for aaron:[頛詨亙蝣奭
& `& T0 G0 ~' N) c - Stopping httpd: [ OK ]
3 _+ X- U9 ]/ ] - 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∠⊥2 a6 \: O) } c7 c9 l! z
臬http://kezeodsnx.pixnet.net/blog/post/25810396 |