Month: March 2021

Difference between AWS Internet Gateway ( IGW ) and NAT Gateway or NAT Instance?

What is the difference between AWS Internet Gateway ( IGW ) and NAT Gateway or NAT Instance? One very basic way of looking at the two types of access are in terms of where the initiating User or App is coming from. If the initiating User or Application is inside AWS they can use a …

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How to generate a simulated load on an EC2 instance to test Auto Scaling Group / ASG

How to generate a simulated load on an EC2 instance to test Auto Scaling Group / ASG There are an lots of ways to create load, here is one (requires root): dd if=/dev/zero of=/dev/null This command will quickly use a lot of CPU. Use control-c  twice to kill.  WARNING NEVER DO THIS TO AN EXISTING …

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