How AWS Security Groups Work

Being able to filter and manage the traffic to your AWS EC2 instances is critical for improving the security of your cloud environment. With the help of security groups, you can filter traffic to and from certain instances in your subnet, acting as a virtual firewall. In this ACG Fundamental, we'll explain what a security group is, how you can leverage it to control incoming and outgoing traffic and rules.

0:14 - What is a security group?
0:59 - Creating a security group demo
1:46 - Adding a rule to a security group
2:42 - Assigning a security group to an EC2 instance
3:32 - Deleting a security group
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Continue your learning with these additional resources:
AWS free tier account details

AWS EC2 console

Security Groups user guide

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[mathewkargarzadeh]

Thanks for this simple and excellent illustration on was security groups. much appreciated.

[kasirbarati]

Nice tut, just a question then. What is the best practice for SSH then? Specifying IP address probably, am I right?

Also could you please explain what you meant by over complicating things?

[douglasemsantos]

It looks like it's mandatory to always have at least one security group assigned to the EC2 instance. Why is that? Thank you for the video!

[pjpj]

What a waste of time. Even day 1 newbie can do this