How does single-user mode differ from multiuser mode?
2.
How would you communicate each of the following messages?
The system is coming down tomorrow at 6:00 in the evening for periodic maintenance.
The system is coming down in 5 minutes.
Jenny's jobs are slowing the system down drastically, and she should postpone them.
Alex's wife just had a baby girl.
3.
What do the letters of the su command stand for? (Hint: It is not Superuser.) What can you do with su besides give yourself Superuser privileges? How would you log in as Alex if you did not know his password but knew the root password? How would you establish the same environment that Alex has when he first logs in?
4.
How would you allow a user to execute privileged commands without giving the user the Superuser password?
5.
Assume you are working as Superuser. How do you kill process 1648? How do you kill all processes running kmail?
6.
How can you disable SELinux?
7.
Develop a strategy for coming up with a password that an intruder would not be likely to guess but that you will be able to remember.
