Describe How the /Etc/passwd and /Etc/shadow Files Are Used in the Authentication

question 23

Essay

Describe how the /etc/passwd and /etc/shadow files are used in the authentication process. Why are two files used instead of one? How can you convert a system to use the /etc/shadow file to store passwords?

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Definitions:

Tubular Secretion

Movement of certain molecules from blood into the distal convoluted tubule of a nephron so that they are added to urine.

Distal Convoluted Tubule

Final portion of a nephron that joins with a collecting duct; associated with tubular secretion.

Active Transport

The movement of molecules across a cell membrane from an area of lower concentration to one of higher concentration, requiring energy.

Excretory System

A biological system that removes excess, unnecessary materials from an organism, allowing it to maintain homeostasis and prevent damage to its body.