Section: 2. Writing a MAC Address Changer – Python Basics

 What is MAC Address & How To Change it

MAC Address

• Media Access Control
  • Permanent.
  • Physical.
  • Unique.
• Assigned by manufacturer.

Why change the MAC Address?

1. Increase anonymity.
2. Impersonate other devices.
3. Bypass filters.

Mac_Changer

Using a Module To Execute System Commands

• The subprocess module contains a number of functions.
• These functions allow us to execute system commands.
• Commands depend on the OS which executes the script.

Syntax:
import subprocess
subprocess.call(“COMMAND”, Shell=True)

Mac_Changer
Variables

• A variable is a location in memory that contains a certain value.
• Similar to maths, its a name that is used to store information.

Ex:
X=1
Now x has a value of one, so we can do
Y=x+x
And y has a value of 2 now.
print(y)
Will print the value of y on screen which is 2.

Mac_Changer
Handling User Input

• Easiest way of getting user input is through keyboard.
• There are a number of ways to achieve that.
• input() function prompts the user to enter a value.

Ex:
age = input(“What is your age?”)
Result
What is your age ?
The variable age will hold the value of the user input

Mac_Changer Functions

• Set of instructions to carry out a task.
• Can take input, and return result.
• Make the code clearer, reusable, and more abstract.
• input() function prompts the user to enter a value.

Ex, we can define a function like so:
def function_name(variable1, variable2 …etc)
And call it in code like so:
function_name(value1, value2)

Mac_Changer Decision Making

● Execute code ONLY if a condition is true.