砍敺 media 2014-12-21 14:12 蝺刻摩
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su=switch user ,頧郢oot 撣唾9 Y$ C3 j, w+ \3 J2 a
sudo 臭誑root甈瑁賊賭誘,靘憒: sudo service mysqld restart,抵隤芣憒銝:! {# |; v: J* o! o8 J: B
7 G# K$ ~. a6 XLinux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 - A+ n0 r5 |0 h3 `5 y
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1. 雿輻究u隞 - #究u雿輻刻3 U# z0 e" C& Z# g( v2 }
- [aaron@phoenix ~]$ su#雿輻究u氳oot: e( A9 s3 N Y' }! |( d* }* Y
- Password:[頛詨叵oot撖蝣奭
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9 Y) V3 e c; A7 r% p% r8 K- [root@phoenix aaron]# service httpd restart#撌脣氳oot
! Q+ f! K+ P! w, K* n - Stopping httpd: [ OK ]
9 }% Y0 w9 v M - Starting httpd: [ OK ]
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4 i5 E2 P7 {8 }4 Q1 P- [root@phoenix aaron]# exit#aaron
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' ~3 W, E1 ?$ q- a9 ^, `" [- #瑁桐隞歹銝閬氳oot
) {, Y$ x/ h. _( t7 Q - [aaron@phoenix ~]$ su -c "service httpd restart"6 _$ G) v R/ N* C) l* u+ \( A
- Password:[頛詨叵oot撖蝣奭$ d' D8 x5 E5 Q. B x. m/ {* E
- Stopping httpd: [ OK ]7 [( f% {* e+ V# ^' S
- Starting httpd: [ OK ]
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5 L2 z* _5 L" ^5 U4 q- #瑁susu -撌桀(Shell啣臬西)6 B! N% c9 U3 G1 l
- [aaron@phoenix ~]$ su1 C+ K9 A7 F' }, e$ P: C
- Password:[頛詨叵oot撖蝣奭
% A" F& s9 f7 @ - [root@phoenix aaron]# echo $PATH#訐ATH霈賂潛暸雿輻災aronPATH霈
7 u# r6 M" w4 }3 i - /usr/local/bin:/bin:/usr/bin:/usr/local/sbin:/usr/sbin:/sbin:/home/aaron/bin
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- [aaron@phoenix ~]$ su -5 W X- |. A- {1 W( N
- Password:[頛詨叵oot撖蝣奭
4 P R y+ l3 ^, Q1 z - [root@phoenix aaron]# echo $PATH#訐ATH霈賂雿輻禿ootPATH霈
0 ^; c A* @, o- O: I - /usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin
銴鋆賭誨蝣 O1 \% v& x8 i5 u
2. 閮剖sudoer
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- [aaron@phoenix ~]$ su
8 j/ `& g0 }! E9 [( } - Password:[頛詨叵oot撖蝣奭; E' m) m0 _$ a4 M/ f& i) J
% J7 C0 s+ i: U- [root@phoenix aaron]# vim /etc/sudoers4 Z. K' C) G7 \! b! Y1 q
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- ## Allow root to run any commands anywhere1 U2 W5 F. t9 ^% o! Z, i- B
- root ALL=(ALL) ALL7 m- B1 n v* }
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- ## Allow users to run any commands anywhere
- E) w8 j! M; J* u; _" U, n - aaron ALL=(ALL) ALL#啣璇閮帶aron臭誑瑁蝞∠⊥
銴鋆賭誨蝣
% g% |( ?" d$ n e9 J2 t( y# k3. 蝭靘- #瘝擃甈嚗隞亙停鋡急鈭+ K9 y% H5 M2 ?1 y& |
- [aaron@phoenix ~]$ service httpd restart
4 p" `& Y" G- O/ Z - Stopping httpd:' @0 G- V, h! O" N2 O9 g( [$ @) F
- rm: cannot remove `/var/run/httpd/httpd.pid': Permission denied. O- F. [- T7 f) _: \4 |5 g) c3 b) A
4 P" {* ]- A0 {0 H- Starting httpd:/ m( f2 ]$ |5 T; K, ?; {0 b, h
- touch: cannot touch `/var/lock/subsys/httpd': Permission denied+ _* A7 p; P7 E# r( r5 e
9 n) a! }+ \' H% Q7 q- #究udo撠勗臭誑
3 }4 \4 L& N! @- _7 B - [aaron@phoenix ~]$ sudo service httpd restart
: r6 ?- W. V5 o: j* |8 y$ l - [sudo] password for aaron:[頛詨亙蝣奭
$ b8 x: M; F0 q4 G8 ^' t1 R' h$ m; S4 h - Stopping httpd: [ OK ]
0 T7 e! Y1 K0 U" q8 S - 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∠⊥
; Y% _$ A# ]% O臬http://kezeodsnx.pixnet.net/blog/post/25810396 |