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Question 2: Access Control For this question concerns a Linux machine on which you are the
administrator (with sudo rights). The system has 5 normal users aj, brian, nick, jc, lance (with
their respective home directories in /home: /home/aj, and so on). In addition to the default user
groups, there are 2 additional groups grpb = { aj , brain, nick } , and grpn = { j c , lance } (a) [6
marks] The default permission for the user home directories is set as 755 , but you wish to limit
access. Write the commands you would have to execute to change is so that no user can access
another user's home directory.

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