砍敺 media 2014-12-21 14:12 蝺刻摩 1 j. G' m# V. e- F7 T
; k% }& m* {- r, R9 c% vsu=switch user ,頧郢oot 撣唾0 ~9 ~6 C& n; x% l% e/ b4 ~" W
sudo 臭誑root甈瑁賊賭誘,靘憒: sudo service mysqld restart,抵隤芣憒銝:, y/ p! s9 k8 R# E
2 D k7 L8 x0 L% M: LLinux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 " j, F) B, m" R5 }
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1. 雿輻究u隞 - #究u雿輻刻1 W9 r. P. ~2 M) F
- [aaron@phoenix ~]$ su#雿輻究u氳oot5 L" `1 M# F q0 O4 ?1 }: Q
- Password:[頛詨叵oot撖蝣奭4 x2 q" e7 W. d% O: D% K) M( o
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- [root@phoenix aaron]# service httpd restart#撌脣氳oot
' x* L" h" B7 D. m1 W7 X - Stopping httpd: [ OK ]- \* e* n' b4 u
- Starting httpd: [ OK ]& O1 X, ^% J2 B3 m5 N" A6 j& J+ e( b
) F' i9 o7 P- r- [root@phoenix aaron]# exit#aaron( e, F2 N6 Z. z) j- k
% v5 e/ I7 w0 ~9 T; g) K b) Y- #瑁桐隞歹銝閬氳oot
& P- o' d) w& ]# C! q - [aaron@phoenix ~]$ su -c "service httpd restart"
7 K1 P& y$ x. `; p8 ^- o8 {* @4 @ - Password:[頛詨叵oot撖蝣奭1 Q0 P- ?0 \+ y0 q# y7 e
- Stopping httpd: [ OK ]
+ ]: D2 g9 W" p6 B - Starting httpd: [ OK ], o4 j& H+ M$ x/ X
$ d" m o# E }# P- #瑁susu -撌桀(Shell啣臬西)
4 |# S; X- F' Q; W. V+ d - [aaron@phoenix ~]$ su
4 ~ x6 B" J+ [" p) R! H1 t0 c - Password:[頛詨叵oot撖蝣奭
1 y' d* e+ x5 M& G/ w - [root@phoenix aaron]# echo $PATH#訐ATH霈賂潛暸雿輻災aronPATH霈
( a$ X/ n- Q2 p; | `. H. k2 ?: j - /usr/local/bin:/bin:/usr/bin:/usr/local/sbin:/usr/sbin:/sbin:/home/aaron/bin
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- [aaron@phoenix ~]$ su -
! ^, ?8 d. c9 j+ y0 p - Password:[頛詨叵oot撖蝣奭" a! X. S; O ?) X' C7 y7 b8 f) ^8 e
- [root@phoenix aaron]# echo $PATH#訐ATH霈賂雿輻禿ootPATH霈( R1 d' ?& l% Z
- /usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin
銴鋆賭誨蝣 # y6 ~' J, ~0 `" m' x5 g/ m
2. 閮剖sudoer
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- [aaron@phoenix ~]$ su
5 o. r. O$ s# O; m! y9 n' w - Password:[頛詨叵oot撖蝣奭- ] p2 {4 A) h u0 D8 t
6 e* e' Q/ q/ F, Z- [root@phoenix aaron]# vim /etc/sudoers
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- ## Allow root to run any commands anywhere( \1 x3 b, P1 [
- root ALL=(ALL) ALL
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% A; o" |9 P/ c0 I+ ]- ## Allow users to run any commands anywhere
$ t$ \0 o2 n) z: ~7 C - aaron ALL=(ALL) ALL#啣璇閮帶aron臭誑瑁蝞∠⊥
銴鋆賭誨蝣
1 I4 ]4 X# b4 e$ V; u3. 蝭靘- #瘝擃甈嚗隞亙停鋡急鈭$ S9 a k: y5 _' }% m0 c5 a
- [aaron@phoenix ~]$ service httpd restart; R/ G, q% f( w) _- E4 p1 z% j
- Stopping httpd:/ t7 p, x' V; n* P! A7 `
- rm: cannot remove `/var/run/httpd/httpd.pid': Permission denied; k1 T+ u0 j( |+ _3 q& ]6 x# H& j
* p& h3 Z# Y( v8 A. [- Starting httpd:
: Y# T; D# b$ x$ M - touch: cannot touch `/var/lock/subsys/httpd': Permission denied
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* [! @( `! m, r7 g: v2 y/ z- #究udo撠勗臭誑& m* `& Z/ y0 K5 F" U3 }
- [aaron@phoenix ~]$ sudo service httpd restart
: I' M3 V* d/ }' s0 ?8 W! _2 n - [sudo] password for aaron:[頛詨亙蝣奭) n c, j) R' f/ c, T! y9 o% O
- Stopping httpd: [ OK ]+ m c% w5 z3 ]
- 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∠⊥ J2 o( ?/ c+ e9 ]% Q4 w6 S
臬http://kezeodsnx.pixnet.net/blog/post/25810396 |