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Practical Guide to Fedora and Red Hat Enterprise Linux, A (4th Edition)

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1 Answers to Even-numbered Exercises 1. How does single-user mode dif er from multiuser mode? 2. How would you communicate each of the following messages? a. The system is coming down tomorrow at 6:00 in the evening for peri- odic maintenance. Use the /etc/motd file and/or email. b. The system is coming down in 5 minutes. Use wall . c. Jenny’s jobs are slowing the system down drastically, and she should postpone them. Use write or talk . d. Alex’s wife just had a baby girl. Use the motd file and/or email. 3. What do the kgs in? 4. How would you allow a user to execute privileged commands without giv- ing the user the Superuser password? You can create a setuid program that belongs to a group that only the user who is to execute it belongs to and that has no permissions for other users. Alternatively you can implement sudo to grant the user permission to exe- cute the file (see the sudo and sudoers man pages). 5.
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11.core.ans.even.RH4 - 11 Answers to Even-numbered...

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