砍敺 media 2014-12-21 14:12 蝺刻摩 # p9 d4 {/ k0 R k0 f
5 ?) I6 G) K$ @# ?/ K3 A5 Zsu=switch user ,頧郢oot 撣唾' x- q q0 E; l
sudo 臭誑root甈瑁賊賭誘,靘憒: sudo service mysqld restart,抵隤芣憒銝:3 |+ M* s0 O$ O) F4 Z8 S; I
2 i. W3 S+ u; @" Q
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 2 T- m7 | x1 q% B: H0 N
, z! N/ ~- x& E; j' V8 z, `1. 雿輻究u隞 - #究u雿輻刻
5 S# p8 T: b# Q, X - [aaron@phoenix ~]$ su#雿輻究u氳oot$ S" ?4 `$ W; D
- Password:[頛詨叵oot撖蝣奭
" w; {0 Z# @ j4 m/ J8 v1 q
( O- D/ ]+ p, ~! a- [root@phoenix aaron]# service httpd restart#撌脣氳oot+ Y5 s* g0 p- k# V
- Stopping httpd: [ OK ]
0 P8 F- w9 K4 E! U5 g" ^ I2 s7 n - Starting httpd: [ OK ]
8 O+ x. ]3 b# j3 L
6 k6 { M( z. L5 r- [root@phoenix aaron]# exit#aaron
# l! J* g! }3 i2 }6 P$ p2 _ - 5 ]4 @4 L% d9 {1 J
- #瑁桐隞歹銝閬氳oot: P$ M& J3 k2 p8 v4 y6 s+ o
- [aaron@phoenix ~]$ su -c "service httpd restart"6 p7 ?7 n. t& O6 z; Y
- Password:[頛詨叵oot撖蝣奭
: I2 l: \+ h1 l! n4 G: O, N' | - Stopping httpd: [ OK ]
6 ^" J0 [) E7 g - Starting httpd: [ OK ]
1 Q3 ~' g7 n0 r3 J' S* f' J
4 w. t9 o) _1 J' m- #瑁susu -撌桀(Shell啣臬西)7 r! T- U8 u( O! Q* N
- [aaron@phoenix ~]$ su6 X1 e9 T1 y( [" A0 T
- Password:[頛詨叵oot撖蝣奭
% L) G- U4 J* B - [root@phoenix aaron]# echo $PATH#訐ATH霈賂潛暸雿輻災aronPATH霈. C3 x$ _" _, h6 ? d9 j
- /usr/local/bin:/bin:/usr/bin:/usr/local/sbin:/usr/sbin:/sbin:/home/aaron/bin/ C& S: y$ d) u7 W' T! \- E
- 5 ]6 z. W) c' S& i6 w2 f4 ~6 k
- [aaron@phoenix ~]$ su -
( @: a; t7 w& W - Password:[頛詨叵oot撖蝣奭0 T% D$ F9 q6 ^
- [root@phoenix aaron]# echo $PATH#訐ATH霈賂雿輻禿ootPATH霈
: H, F; Y |+ o" f/ B - /usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin
銴鋆賭誨蝣 ! q, ~; s$ y2 h) p4 L1 i2 S* ], p
2. 閮剖sudoer5 V: Y9 f! d) |* Z6 P" c( M/ K
- [aaron@phoenix ~]$ su t2 ^1 t+ R! s1 ]/ G
- Password:[頛詨叵oot撖蝣奭/ ]- t/ a# M0 u5 y0 l! M( r
N# {/ l# v2 m" ]5 w& x( { Z- [root@phoenix aaron]# vim /etc/sudoers
6 j) ]; V5 {* @$ V+ y - : H/ M( Z! w8 s$ l
- ## Allow root to run any commands anywhere1 R% t% b* Y9 w; h# F
- root ALL=(ALL) ALL4 q E+ s- \, O# d$ y F
4 @* o# ^" Z8 ?; e- ## Allow users to run any commands anywhere; V- a; Q! ]$ T e6 ~
- aaron ALL=(ALL) ALL#啣璇閮帶aron臭誑瑁蝞∠⊥
銴鋆賭誨蝣 4 A' P' U( T1 f9 }: d& O
3. 蝭靘- #瘝擃甈嚗隞亙停鋡急鈭
1 t3 t0 {- d& {5 Y0 w" d9 f+ T - [aaron@phoenix ~]$ service httpd restart, Y1 S& F' a0 B& X) L! o
- Stopping httpd:
& z$ ]: q$ U" _- j6 `! U - rm: cannot remove `/var/run/httpd/httpd.pid': Permission denied# t1 a d' X- w( s1 k
4 O9 ~2 R: J' l/ R4 u- w8 s: _- Starting httpd:: T) e4 P4 L# O9 z Y/ P) A
- touch: cannot touch `/var/lock/subsys/httpd': Permission denied) s; C1 j$ m# I- } F; [
- . {0 C9 Y: `( C, x5 J
- #究udo撠勗臭誑% |2 Z2 \; x i. g
- [aaron@phoenix ~]$ sudo service httpd restart
! o' g* L! ^4 J2 e( v - [sudo] password for aaron:[頛詨亙蝣奭
0 i; ~( ]2 h% ~: M9 A# Y - Stopping httpd: [ OK ] ~5 X9 L$ c( ^4 H6 c; h& N
- 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∠⊥
" l) b- t- c3 }臬http://kezeodsnx.pixnet.net/blog/post/25810396 |