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UNIX question

Discussion in 'Linux and Unix' started by tamer11007, Dec 29, 2012.

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  1. tamer11007

    tamer11007 Thread Starter

    Dec 29, 2012
    Pleas I want answer this question or reference or link website can find answer to
    this question?

    1. We consider that we are running on a UNIX system which uses ACL as a mechanism for file protection. Where is the protection information of the file stored?

    2. In UNIX, each device is represented by a device, give an example of a file representing the hard disk storage device. Give the full listing of this file using the "ls -l" command. What are the protection flags (rwx) for this file and WHY are they like this? What would happen if the protection flags were equal to rw-rw-rw ?

    3. What is the definition of MAC Times for UNIX systems? provide an example about the difference between the M flag and C flag.

    4. A system administrator suspects that there is an attack on his machine; he needs to make a backup of the files to check when they have been modified. For this purpose he uses the "cp –r" instruction to copy the root directory. What is the problem with this and what other instruction should the administrator use in order to avoid this problem?


    1. What is a "two-factor" authentication?
    2. Provide a full example of two-factor authentication where one factor is a password.
    3. Could we use the mobile phone as part of this two-factor authentication?
    4. Is "google" authentication a two-factor authentication system? What is the main problem with this device?

    I am find answer when search on internet but i can't find all "Full Answer "

    Pleas help me............. I need this information
  2. TerryNet

    TerryNet Moderator

    Mar 23, 2005
    First Name:
    Isn't that the purpose of taking the class--to learn by studying, searching for material, thinking and, if you are lucky, doing? If you do find a "Full Answer " tell the instructor he/she needs to modify the exercise.

    Closing, as you are not asking for help; you are asking for somebody to do your homework or exam for you.
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