02_2_users

download 02_2_users

of 14

Transcript of 02_2_users

  • 7/26/2019 02_2_users

    1/14

    2 2/3

    This wo! is "i#$%s$& '%&$ (h$ )$*(i+$ )o,,o%s -((i.'(io%0o%#o,,$#i*"0o 1$i+*(i+$ o!s 345i#$%s$ To +i$w * #o67 o8 (his "i#$%s$9 +isi( h((6://#$*(i+$#o,,o%so;/"i#$%s$s/.7%#%&/34/ o s$%& *

    "$(($ (o )$*(i+$ )o,,o%s9 $#o%& >($$(9 >'i($ 3449 >*% ?*%#is#o9 )*"i8o%i*9 @A-

  • 7/26/2019 02_2_users

    2/14

    D

    EF

    GF HF I

  • 7/26/2019 02_2_users

    3/14

    (c) 2007, 3

    D

    Use !" (#$%)

    & '' *'+

    JKL oo( Ci& M 4 D 4N'i&NB44 JKIFL

    OP /etc/passwd (-rw-r--r--)

    OP /etc/shadow (-r--------)

  • 7/26/2019 02_2_users

    4/14

    (c) 2007, -

    OP /$(#/6*ssw&

    Q:R:CS1:S1:U)V>:W:sh$""

    ../100../../$45s6

    $41$4$4s$44.8.9$4

    %5e:.4122%5e:.4s$4s$44.8.9$4

    5%:13-5%:;55%:s$44.8.9$4

    8

  • 7/26/2019 02_2_users

    5/14

    (c) 2007, >

    OP /$(#/sh*&ow

    QXYZFP [ I \ ] I

  • 7/26/2019 02_2_users

    6/14

    (c) 2007, B

    EF

    OP /etc/group (-rw-r--r--)

    OP /etc/gshadow (-r--------)

    D

  • 7/26/2019 02_2_users

    7/14

    (c) 2007, 7

    OP /$(#/;o'6

    :R:S1:

  • 7/26/2019 02_2_users

    8/14

    (c) 2007, C

    OP /$(#/;sh*&ow

    ::

  • 7/26/2019 02_2_users

    9/14

    (c) 2007, D

    cb

    's$*&&

    6*ssw&

    /$(#/s!$"

  • 7/26/2019 02_2_users

    10/14

    (c) 2007, 0

    _Zg b`

    's$,o& gj

  • 7/26/2019 02_2_users

    11/14

    (c) 2007,

    G

    's$&$" j

  • 7/26/2019 02_2_users

    12/14

    (c) 2007, 2

    G

    ;o'6*&&

    ;o'6&$"

    ;o'6,o&

  • 7/26/2019 02_2_users

    13/14

    (c) 2007, 3

    s7s($,#o%8i;'s$s

  • 7/26/2019 02_2_users

    14/14

    (c) 2007, -

    GF

    s' j

    who*,i

    S&

    ;o'6s

    's$s

    who "*s(

    %$w;6

    #how%

    #h;6