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        2. 查阅Linux缺省的存取控制权限具体步骤

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              实验目的:相识Linux文件花样以权限的设置

              实验步骤:

              1.以root身份登录进入linux

              2.使用以下下令建立新帐户anyuser/usr/sbin/useradd anyuser

              3.为anyuser帐户设置密码:

              /usr/sbin/passwd

              Changing password for user anyuser

              New UN IX password

              Retype UNIX password

              4.注销而且以anyuser帐户登录

              5.检察linux密码文件内容:/bin/cat/etc/passwd

              root:x:0:0:root:/bin/bash

              bin:x:1:1:bin:/bin

              daemon:x:2:2:daemon:/sbin:

              mail:x:8:12:mail:/var/spool/mail

              named:x"25:25:Bind User:/var/named:

              dnscache:x:410:405:dnscache user:/var/djbdns:/bin/true

              xfs:x:414:414:X Font Server:/etc/S11/fs:/bin/false

              postfix:x:415:416:postfix:/var/spool/postrix:

              mtsql:x:416:417MySQL server:/var/lib/mysql:/bin/bash

              test:x:501:501:condor:/home/condor:/bin/bash

              anyuser:x:502:506:zhengya:/home/julia:/bin/bash

              6.注销而且以root身份登录

              7.输入以下下令:/bin/chmod o-r/etc/

              chmod是在Linux下用来起家文件或目录权限的下令,有关其详细的内容我们会在操作系统宁静篇里先容.

              8.再次以anyuser帐户重新登录,试着列出/etc/下所有内容

              9.由于系统不再允许Everyone的会见,下令应该失败

              10.作为非root用户,可以使用以下下令起家密码:

              host$ passwd

              (current) UNIX password:

              New UNIX password:

              Retype new UNIX password:

              Passwd:all authentication tokens updated successfully