砍敺 media 2014-12-21 14:12 蝺刻摩 ; J& t' Z3 J9 Y$ F7 J) G& b. \
( g6 a0 f) S% G9 b& _su=switch user ,頧郢oot 撣唾
5 r' i) q8 V" L" g. ssudo 臭誑root甈瑁賊賭誘,靘憒: sudo service mysqld restart,抵隤芣憒銝:0 q0 B+ S: r" r3 K5 `
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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 - D% w% e+ |, y5 _7 }
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1. 雿輻究u隞 - #究u雿輻刻
: y' j/ p5 y& l' [ - [aaron@phoenix ~]$ su#雿輻究u氳oot
% Q! e. w5 K+ L: H* F - Password:[頛詨叵oot撖蝣奭
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- [root@phoenix aaron]# service httpd restart#撌脣氳oot
- t+ b* `4 p( s8 S% ?- k: e* C - Stopping httpd: [ OK ]8 E+ P' j7 a+ ]/ o2 w/ k, N8 e( S v- E
- Starting httpd: [ OK ]
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- [root@phoenix aaron]# exit#aaron
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- #瑁桐隞歹銝閬氳oot
' z0 z& ^# Y6 e. Y( E - [aaron@phoenix ~]$ su -c "service httpd restart") k" C4 I3 A7 p' O
- Password:[頛詨叵oot撖蝣奭4 T1 P' `+ _5 _" v; {5 N: Z0 g
- Stopping httpd: [ OK ]
9 _: Y# O, h0 M$ S7 v% u# z4 [ - Starting httpd: [ OK ]) m. I9 P+ q2 k0 q
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- #瑁susu -撌桀(Shell啣臬西)
& L* q C' s5 A - [aaron@phoenix ~]$ su
2 z8 U3 C. ]) r$ e- n - Password:[頛詨叵oot撖蝣奭
; ]- O/ a( s7 x, \. i- ?0 A - [root@phoenix aaron]# echo $PATH#訐ATH霈賂潛暸雿輻災aronPATH霈: q6 C/ V0 R/ @/ B) O. Z9 V) ]
- /usr/local/bin:/bin:/usr/bin:/usr/local/sbin:/usr/sbin:/sbin:/home/aaron/bin
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9 ?( R6 E7 N+ O0 P; I6 j6 \$ @- [aaron@phoenix ~]$ su -& U: u: i* y, r/ V5 W
- Password:[頛詨叵oot撖蝣奭
. ^; i; V) Z7 U2 z* { - [root@phoenix aaron]# echo $PATH#訐ATH霈賂雿輻禿ootPATH霈
# t* N, I- h% \! x, V9 [+ c - /usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin
銴鋆賭誨蝣 $ U. U9 `+ U5 m C$ p0 d4 h0 m) \( b
2. 閮剖sudoer8 L; N! q. E, @. q
- [aaron@phoenix ~]$ su+ F. ` C+ J0 u
- Password:[頛詨叵oot撖蝣奭8 f3 ?0 F" k! X ]
" [0 Q8 h) z) X! g% g9 w- [root@phoenix aaron]# vim /etc/sudoers
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& j; W! a8 H5 Y) Z- ?. L- ## Allow root to run any commands anywhere
: Y: B" r- ~8 `& F6 [+ Y - root ALL=(ALL) ALL
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- ## Allow users to run any commands anywhere7 X$ Q% |# Y9 I9 y9 ? _/ h
- aaron ALL=(ALL) ALL#啣璇閮帶aron臭誑瑁蝞∠⊥
銴鋆賭誨蝣 * r8 p) t- \' A4 n; k
3. 蝭靘- #瘝擃甈嚗隞亙停鋡急鈭4 i* x k; A' m( h
- [aaron@phoenix ~]$ service httpd restart
" R8 D* {9 b# U" f) z- I7 H - Stopping httpd:
: u5 e1 a2 A. O, s7 ? - rm: cannot remove `/var/run/httpd/httpd.pid': Permission denied0 ?; d8 o0 F0 b7 a
- ; S0 r. c9 |: M0 I" \; |
- Starting httpd:. _; ?( \* U2 W8 w% ^
- touch: cannot touch `/var/lock/subsys/httpd': Permission denied
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- #究udo撠勗臭誑' c" n) O- C, w$ y' D: ?* J: u
- [aaron@phoenix ~]$ sudo service httpd restart' ?8 i. S" ^8 R0 q, M
- [sudo] password for aaron:[頛詨亙蝣奭
r' w6 b9 v4 k/ |6 p - Stopping httpd: [ OK ]3 |( l2 K& ~! r
- 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∠⊥5 H' L* p# L: f
臬http://kezeodsnx.pixnet.net/blog/post/25810396 |