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To ensure the security of the files used by the new Web site, files need to access controls that limit which users can view and execute them. To further your understanding of file permissions, describe in detail these 5 file listings, explain all items on each line, explain what they specify or mean, and give the chmod command to set files with these permissions: -rwxr-xr-- 1 instruct staff 270311 Aug 11 2009 install.sh -rw-r--r-- 1 instruct staff 348039 Aug 12 2008 User_Guide.txt -rw-r----- 1 instruct staff 635106 Aug 12 2009 Admin_Guide.txt drwxr-xr-x 4 instruct staff 144 Aug 12 2009 Documents -rwsr-sr-x 1 nobody nobody 169202 Aug 11 2009 httpd It is also a necessity to know and understand regular expressions, not only at the UNIX command line, but editors and some programs use them quite extensively. Explain the following Metacharacters/Regular Expressions: * ? ^ $ [0-9] [a-z] Give a regular expression to match the following: All files that end in txt Files that have a second character of a and end in sh Any file that starts with a number A blank line A traditional 10-digit U.S.-based phone number, in the following format: (407) 555-1212 Submit the explanations, commands, definitions, and expressions in a Word document.
Write down 200- to 300-word response which answers the following question: Based on article by Lenning (2005), what is main security risk which users must acknowledge when using macros?
An earlier version of WTLS supported a 40-bit XOR MAC and also supported RC4 stream encryption. Show that this scheme doesn't give message integrity protection.
suppose that the security model is required for protection of your class. Using CNSS model, examine each of the cells and write a short statement.
The federal government regulates labels, warranties, and consumer products. Without government regulation, what abuses are likely to occur?
You must include in your investigation protection of both transmitted information also sensitive data stored locally in computer databases.
Bob loves foreign languages and wants to plan his course schedule for the following years. He is interested in the following nine language courses: LA15, LA16, LA22, LA31, LA32, LA126, LA127, LA141.
Describe network crimes that are related to DNS entry alteration or bogus DNS servers. In a network investigation, some network administrators may be cooperative while others may not.
Discuss what you believe to be the most important lesson you have learnt as a result of these discussions. Explain the impact of this and its application/impact in real life.
concept of Message Digest, File Carving, MD5, Locard's Exchange, Parker's categories, computer-related crime as suggested by Donn Parker, computer systems as sources of digital evidence
Create the statements to make an overloaded constructor for the class named Car. The constructors should support 0, 1, or 2 arguments. The 1st argument will denote engine size and contain an Integer.
Find another key that also has this property, and explain the structure of the DES key schedule that permit such keys to exist.
The state crime lab training coordinator is concerned with level of expertise at its Blacksburg, VA location and would like to contract DC Investigative to conduct four training sessions.
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