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It Cns

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Submitted By jquiroz12818717
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Christopher Almendares

Chapter 11 1-8 , 10

1. How does single-user mode differ from muliti user mode?
Single user mode is designed primarily for systems administration. As such, the system will only load minimal drivers and processes necessary for that administration. Most disk partitions will not be loaded unless they are crucial to the administration of the system.
Other users are not allowed to log in to the system in this mode.Multi-user mode is the normal mode of the system, with all resources available to users both locally and via the network.
2. How would you communicate each of the following messages?
a. The system is coming down tomorrow at 6:00 in the evening for periodic 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 letters of the su command stand for? satisfaction units

4. How would you allow a user to execute privileged commands without giving 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 execute the file (see the sudo and sudoers man pages).

5. Assume you are working as superuser. How do you kill process 1648?
How do you kill all processes running kmail? to kill processes click ctr+alt f3 and it will bring up a prompt and log in as root, ( ctr+alt f7 to leave this menu) type in top. next type in the letter 'k' to bring up the kill command. type in the process to kill then your good.

6. How can you disable SELinux?
Either use the SELinux tab of the

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