12.filesystem.ans.even.RH4

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

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1 Answers to Even-numbered Exercises 1. What isle? 2. What does the /etc/resolv.conf file do? What does the nameserver line in this file do? The /etc/resolv.conf file is the resolver configuration file. It provides access to DNS for Internet address resolution. The nameserver line indicates which systems the local system should query to resolve hostnames into IP addresses, and vice versa. 3. What is m? 4. What does the .. entry in a directory point to? What does this entry point to in the root ( / ) directory? The .. entry is a link to the parent directory. In the case of the root direc- tory, there is no parent, so the .. entry is a link to the root directory itself. 5. Whatcated? 6. What is a FIFO? What does FIFO stand for? What is another name for a FIFO? How does a FIFO work? A FIFO is a special file, also called a named pipe. You read from and write to the file to read from and write to the pipe. The term FIFO stands for
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Unformatted text preview: “first in, first out.” The first information that you put in one end is the first information that comes out the other end. 7. Wrem. 8. Without using rm , how can you delete a file? ( Hint: How do you rename a file?) $ mv file /dev/null 9. After burnind line? 10. Why should /var reside on a separate partition from /usr ? Files in /var change often, unlike files in /usr . When a system crashes, it is more likely that a filesystem with recently modified files will become corrupt than a stable filesystem. To lessen the chance of the data in /usr becoming corrupted when a system crashes, it is kept on a separate partition. 11. Creously. 12 2 12. How would you mount an ISO image so that you could copy files from it without burning it to a CD? $ mount -t -o loop image.iso /mnt/image See “THE LOOP DEVICE” on the mount man page for more information....
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