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Book: LPI Linux Certification in a Nutshell
Section: Chapter 22. Exam 102 Review Questions and Exercises
22.9 Security (Topic 1.14) 22.9.1 Review Questions -
What daemon is associated with the control files /etc/hosts.allow and /etc/hosts.deny. -
In general terms, describe a method to locate SUID programs in the local filesystem. Why might an administrator do this routinely? -
What is the function of the md5sum utility? -
Why might a user run SSH instead of Telnet? -
Describe shadow passwords and the file where the passwords are stored. 22.9.2 Exercises -
Use find as described in Chapter 21, to locate SUID files. Is the list larger than you expected? Are the entries on your list justifiably SUID programs? -
Use the md5sum utility on a binary program file and examine its output. -
Using the instructions in Chapter 21 (or a package from your distribution), install SSH. Start sshd and attempt to connect to your own system with ssh localhost. The connection should proceed in a manner similar to a Telnet session. | | |
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