Over the past few weeks, AT has been tasked with making a podcast that tackles basic computer science concepts. For this project I decided to focus on Addressing and DNS servers because I was interested in explaining the process of going to a website. Here is my Outline:
- Episode 1 – Addressing
- Internetworking protocol
- Vint Cerf & Bob Kahn invented the internetworking protocol in 1974
- The internet is a network of networks
- ISP internet service providers
- A protocol is a well-known set of rules/standards
- All it takes for a device to access the internet is for the device to follow protocol
- Visiting a website is really just your computer asking another computer for information
- Your computer sends a message and with it, it’s own IP address so the computer knows where to send the information to.
- Internetworking protocol
- Episode 2 – Ip addresses
- IP stands for internet protocol
- Computer address is called an Ip Address
- All the different devices on the internet have unique addresses
- Similar to a phone number or street address
- Ipv4, Ipv6
- Just like a street address has a city, state, and country, IP addresses
- Ip addresses are broken up into bits ( traditional ip addresses are 32 bits long, 8 bits for each part of the ip)
- Broken up : Country, Region, Subnetwork, Device
- IPV4^ (maximum of 4 billion unique addresses)
- We are currently transitioning to using a longer format of IPv6
- IPv6 addresses are 128 bits in length and can provide 340 undecillion unique addresses
- DNS SERVER EPISODE 3
- Dns or domain name system which takes names for websites and translates that into an ip address.
- Your computer uses DNS servers to look up domain names and find the appropriate IP address.
- DNS SERVERS are broken up by a distributed hierarchy (.com, .net, .org, and .gov)
- DNS SPOOFING – WHEN A HACKER hacks into a dns server to match a domain with the wrong ip address
Link to Podcast: https://anchor.fm/dashboard
TUCKER DOES CODE GOOD 