砍敺 media 2014-12-21 14:12 蝺刻摩 6 R% l1 D: Y+ w/ u+ K
/ [2 E$ s& t1 h* ^0 k& s
su=switch user ,頧郢oot 撣唾& A0 a3 \( d9 _5 w- \& {3 t$ T, j
sudo 臭誑root甈瑁賊賭誘,靘憒: sudo service mysqld restart,抵隤芣憒銝:1 o8 @7 y& u1 G y4 S+ q3 M2 c
?- _' Z+ ^4 `; gLinux摰鋆憟隞嗉蝟餌絞閮剖賡閬root甈嚗撠望盎uper-user privileges (擃甈)嚗銋撠望舐恣⊥憒雿root甈嚗臭誑湔亦究sh餃叵oot撣唾嚗究u(substitute user)隞支雿輻刻嚗銝嗅停臭蝙究udo隞扎
+ S& J* w5 h6 I3 r1 N
) u3 h; Z& O8 j9 Y# L1. 雿輻究u隞 - #究u雿輻刻% T+ ^9 e4 f c
- [aaron@phoenix ~]$ su#雿輻究u氳oot, i, g: F1 K8 M) \9 |5 @
- Password:[頛詨叵oot撖蝣奭8 c) \1 r+ ]% k x+ _1 e
4 f, `" T) t4 q; B, \ s- [root@phoenix aaron]# service httpd restart#撌脣氳oot
. V% O M1 o9 ?7 W: n8 E+ U - Stopping httpd: [ OK ]" e+ c& T" O- ]
- Starting httpd: [ OK ]
) P. ^' S2 b% }2 a1 b
% H; R4 Z- d( O( O' E& _- [root@phoenix aaron]# exit#aaron& Z) h, e: k2 x9 {5 E
- 9 [$ f* ~* d$ ^3 C/ Z+ {6 F. r
- #瑁桐隞歹銝閬氳oot% j" [% E ]7 a) @
- [aaron@phoenix ~]$ su -c "service httpd restart"
6 l, c2 u1 X Y! Z+ c - Password:[頛詨叵oot撖蝣奭3 i& R1 o+ \) [% `1 H3 a$ n& M
- Stopping httpd: [ OK ]! a# \: o% z0 t# I @2 w
- Starting httpd: [ OK ]
7 }/ K! ~6 L) y8 ^
- A: f( b1 w |) ]2 O' u5 g A9 {, p- #瑁susu -撌桀(Shell啣臬西)
, D# u) J/ N5 @5 ?; k( L$ ~ - [aaron@phoenix ~]$ su, r% b9 D9 s9 H# H5 ?
- Password:[頛詨叵oot撖蝣奭
. w* \4 ?& o3 y% Z( l8 ^- V - [root@phoenix aaron]# echo $PATH#訐ATH霈賂潛暸雿輻災aronPATH霈; h# v, b6 `8 I# l8 J& W
- /usr/local/bin:/bin:/usr/bin:/usr/local/sbin:/usr/sbin:/sbin:/home/aaron/bin
7 n: C; z5 t& @3 f& x( ^ - * T2 \( {# @0 p" y( }6 L
- [aaron@phoenix ~]$ su -
w% s t5 P, f4 @1 X - Password:[頛詨叵oot撖蝣奭; |9 o8 A: ~9 E' @$ c: V( \
- [root@phoenix aaron]# echo $PATH#訐ATH霈賂雿輻禿ootPATH霈( ]3 j$ c6 ]& W, e' g. A
- /usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin
銴鋆賭誨蝣
2 B7 d( s" E3 b; z3 J, r2. 閮剖sudoer& r$ g: q! B0 n: [' R1 Y% P( X! X
- [aaron@phoenix ~]$ su M% x& a8 O7 q9 D
- Password:[頛詨叵oot撖蝣奭8 S# W- C) u Z$ ], Q9 l/ L% T* v+ d
g' {/ w t8 Q6 w$ I- Y8 P- t" W( N* M- [root@phoenix aaron]# vim /etc/sudoers
5 T- D% y. u' i - & T1 n' t0 K9 D( f
- ## Allow root to run any commands anywhere& I! H* I, T* E; W2 S8 ]- P
- root ALL=(ALL) ALL
/ A6 |# ~6 {( ]. X
$ L( ^% V$ L0 g% Y3 y$ W- ## Allow users to run any commands anywhere+ c% @* V2 C s1 i& {1 d0 U
- aaron ALL=(ALL) ALL#啣璇閮帶aron臭誑瑁蝞∠⊥
銴鋆賭誨蝣 * b2 A; ^6 [" K
3. 蝭靘- #瘝擃甈嚗隞亙停鋡急鈭
; ~ o4 |$ B; m: P% I. V - [aaron@phoenix ~]$ service httpd restart" _0 H4 l$ N- m0 I% F
- Stopping httpd:
0 ]8 I$ ]# B1 ^7 m - rm: cannot remove `/var/run/httpd/httpd.pid': Permission denied
+ B! H( H6 P9 [" D: f - ' e8 u' z5 l0 ~$ S8 o
- Starting httpd:# L2 ^8 U9 T9 s5 k( l C
- touch: cannot touch `/var/lock/subsys/httpd': Permission denied
; O' p1 b( x9 X& U' ^
. @. M5 M+ X. a$ `" @- #究udo撠勗臭誑) }! _8 k+ ^# ~, n" g
- [aaron@phoenix ~]$ sudo service httpd restart) a9 c! Q; W. k4 O7 B
- [sudo] password for aaron:[頛詨亙蝣奭
4 W! t1 E+ b( ]: i( N1 ?9 I - Stopping httpd: [ OK ]' |" L% m! D# f: c+ c" y( W2 Y- k
- 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∠⊥" @1 u+ r4 W& Q+ O
臬http://kezeodsnx.pixnet.net/blog/post/25810396 |