砍敺 media 2014-12-21 14:12 蝺刻摩 2 w. G, |0 p5 H% R5 Y S
& x |7 H% @+ r0 t1 [, Y" \su=switch user ,頧郢oot 撣唾" Y; K9 B; t- Q6 R) u
sudo 臭誑root甈瑁賊賭誘,靘憒: sudo service mysqld restart,抵隤芣憒銝:
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7 c8 R* k# `- t! j$ yLinux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 ! e8 J: z6 i# ^6 G% @
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1. 雿輻究u隞 - #究u雿輻刻6 i; ^/ d3 ^1 Z$ [. l! s
- [aaron@phoenix ~]$ su#雿輻究u氳oot* g6 `7 u$ O3 b+ e( ]3 a
- Password:[頛詨叵oot撖蝣奭+ w% l1 H" s) N5 v6 u
5 R) d$ t: K( E: c- [root@phoenix aaron]# service httpd restart#撌脣氳oot
6 u4 v, g& y, ~( d' K. i) b/ P - Stopping httpd: [ OK ]3 z: h) }$ |8 @+ Q1 N! }! O5 C
- Starting httpd: [ OK ]
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- [root@phoenix aaron]# exit#aaron
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- #瑁桐隞歹銝閬氳oot
1 d, ]# A0 W6 c. X; k1 ~$ H - [aaron@phoenix ~]$ su -c "service httpd restart"
1 Y; G0 G" I2 M" }+ e& H N3 a - Password:[頛詨叵oot撖蝣奭
% y( l& g1 K* |: l' \% z - Stopping httpd: [ OK ]
* J1 ~) U I/ O+ e8 D2 M - Starting httpd: [ OK ]* o+ f8 M# L! i) [% f$ H; ?
; W m5 }6 ~4 V/ s- #瑁susu -撌桀(Shell啣臬西)
4 M6 r* W" g+ H7 q, A* V - [aaron@phoenix ~]$ su+ E5 [* w T; u' N( U. s
- Password:[頛詨叵oot撖蝣奭! y3 W2 o4 \2 E) X
- [root@phoenix aaron]# echo $PATH#訐ATH霈賂潛暸雿輻災aronPATH霈8 g1 W2 C9 S9 Z
- /usr/local/bin:/bin:/usr/bin:/usr/local/sbin:/usr/sbin:/sbin:/home/aaron/bin
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$ r" v5 b% F1 R! B( H- [aaron@phoenix ~]$ su -0 h0 B' B0 @' b
- Password:[頛詨叵oot撖蝣奭$ [( {1 i/ b+ D3 k$ Y0 Q# h
- [root@phoenix aaron]# echo $PATH#訐ATH霈賂雿輻禿ootPATH霈
2 z- n2 O" p6 V9 H9 d - /usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin
銴鋆賭誨蝣
9 n8 A! @0 X x3 j; K2. 閮剖sudoer
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- [aaron@phoenix ~]$ su! v4 o3 Q. b7 \4 {. u
- Password:[頛詨叵oot撖蝣奭1 R3 ~7 `8 @: m8 B" Z
- % F1 n, b! [7 v' b& s; o
- [root@phoenix aaron]# vim /etc/sudoers3 ?% C/ k' d4 S; F( j$ H
- ! ^) |: ~/ c' j2 L% n
- ## Allow root to run any commands anywhere' p. A$ A2 _: p1 Z% _: H
- root ALL=(ALL) ALL
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' h# m# R( L: V9 F( x& o* {) w6 k- K- ## Allow users to run any commands anywhere8 B% W, O: j0 p) t( U( g1 \
- aaron ALL=(ALL) ALL#啣璇閮帶aron臭誑瑁蝞∠⊥
銴鋆賭誨蝣
; y3 O! ^# n& R, H v' U3. 蝭靘- #瘝擃甈嚗隞亙停鋡急鈭
' c* r( ~4 T# \ - [aaron@phoenix ~]$ service httpd restart; ~3 U I6 b- P5 w A) l$ H
- Stopping httpd:# K4 d L9 e$ r i* |/ W
- rm: cannot remove `/var/run/httpd/httpd.pid': Permission denied6 `9 ]% I' F( z/ q5 H
- t$ E# j$ Z7 C" }% O( W/ f' ^- t/ a- Starting httpd:9 e5 m/ s1 L i1 `: @3 p/ i; e( {
- touch: cannot touch `/var/lock/subsys/httpd': Permission denied
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3 X0 K( U& Y' i" @* I5 U- #究udo撠勗臭誑
. Y4 V* H6 O& U - [aaron@phoenix ~]$ sudo service httpd restart! @ ~& X& E; @0 E1 z# m8 n
- [sudo] password for aaron:[頛詨亙蝣奭2 r7 e& a* U: v& e, j& @8 g0 p
- Stopping httpd: [ OK ]
I w% H- O! q' E0 M; O - 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∠⊥' ] D) \, r P$ j1 t! j2 I
臬http://kezeodsnx.pixnet.net/blog/post/25810396 |