Terminology

What are Amazon Web Services Availability Zones?

What are Amazon Web Services Availability Zones?

You know what a Amazon Web Services Region is? Look closer.

Amazon Web Services Terminology

How to ping if you've never pinged before

How to ping if you've never pinged before

An introduction to using ping and interpreting the results.

Networking Terminology

What are Amazon Web Services Regions?

What are Amazon Web Services Regions?

What are Amazon Web Services Regions, and how do you deploy to them?

Amazon Web Services Terminology

What's the difference between public and private IPv4 addresses?

What's the difference between public and private IPv4 addresses?

What if you don't want everything on your network to be addressable on the public Internet?

Networking Security Terminology

What's SQL injection, and why should Starfleet care?

What's SQL injection, and why should Starfleet care?

The USS Discovery was compromised by SQL injection. What's SQL injection, then?

Security Terminology

What's a subnet?

What's a subnet?

Let's go back to the hotel analogy and look what what subnets are, and how they can reduce network congestion.

Networking Terminology

IP addresses and CIDR blocks, basically

IP addresses and CIDR blocks, basically

An introduction to IP addresses and CIDR blocks, with hotel rooms and binary numbers.

Mathematics Networking Terminology

What are VPCs?

What are VPCs?

If you've ever used Amazon Web Services then you've probably seen one already -- but what is a VPC?

Amazon Web Services Networking Terminology

Authentication vs Authorisation

Authentication vs Authorisation

What's the difference between authorisation and authentication? Does it really matter? (SPOILER: Yes, it does.)

Security Terminology