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Top Forums UNIX for Dummies Questions & Answers UNIX question Post 302749767 by tamer11007 on Saturday 29th of December 2012 11:43:01 AM

12-29-2012

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UNIX question

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?

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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?

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

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

tamer11007

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purity-ng

PURITY-NG(6)							   Games Manual 						      PURITY-NG(6)

NAME

       purity-ng - general purpose purity testing software

SYNOPSIS

       purity-ng [OPTION]...  list|FILE|TESTNAME

DESCRIPTION

       Purity  is  an  interactive purity test program with a simple, user interface and datafile format.  For each test, questions are printed to
       the your terminal, and you are prompted for an answer to the current question.  At a prompt, these are your choices:

	      y      Answer "yes" to the question.
	      n      Answer "no" to the question.
	      b      Backup  one  question, if you answered it incorrectly, or someone is watching you take the test, and you don't (or do) want to admit a different answer.
	      s      Print your current score on the test you are taking.
	      q      Quit the test, and print the current score.
	      ?      Print a help screen for the current prompt.

       At the end of the test, your score is printed out.  For most purity tests, lower scores denote more "experience" of the test material.

OPTIONS

       --version
	      print current version of purity-ng

       -h, --help
	      show the help message and exit

       -p     print the test without prompting for answers.

       -r     decrypt the test using the Rot 13 algorithm.

       To get a list of all purity tests available globally on your system, run purity-ng list.

AUTHORS

       purity was originally written by Eric Lechner in 1989.  purity-ng is a reimplementation of purity in Python for modern systems, written	by
       Simon Fondrie-Teitler and Luke Faraone.

       This manual page was written by Luke Faraone.

BUGS

       If you find bugs in the application, please report these to <https://bugs.launchpad.net/purity-ng> or to your distribution's distributor.

SEE ALSO

       purity(6)

       Running purity-ng format provides documentation about the datafile format.

       Additional documentation is available online at <http://packages.python.org/purity-ng>.

								  January 7, 2011						      PURITY-NG(6)