Networking basics #1

This project was the second of two introducing networking. I continued to learn about IP addresses while practicing manipulating them with Bash scripts.

Tasks 📃

• Localhost

  • 0-localhost: Text file that answers the following question:
  • What is localhost?
    1. A hostname that means this IP
    2. A hostname that means this computer
    3. An IP attached to a computer

• 1. All IPs

  • 1-wildcard: Text file that answers the following question:
  • What is 0.0.0.0?
    1. All IPv4 addresses on the local machine
    2. All the IPs
    3. It means null in networking

• 2. Change your home IP

  • 2-change_your_home_IP: Bash script that configures an Ubuntu server as follows:
  • localhost resolves to 127.0.0.2
  • facebook.com resolves to 8.8.8.8

• 3. Show attached IPs

  • 3-show_attached_IPs: Bash script that displays all active IPv4 IP's on the machine.

• 4. Port listening on localhost

  • 4-port_listening_on_localhost: Bash script that listens on port 98 on localhost.