Refer to the following guide to learn how to use IAM in the cloud\
<https://scribehow.com/shared/Creating_an_IAM_User_and_User_Group_in_AWS_Management_Console__hWNiiXlcRJKFqYZZEJD-cg>

Refer to this guide to learn how to create an EC2 instance\
<https://scribehow.com/shared/AWS__Creating_your_first_EC2_Instance__Xcu7ZVCdRfWx56YVktKgbQ>

Refer to this guide to learn how to connect to an EC2 instance<https://scribehow.com/shared/How_to_Connect_to_an_AWS_EC2_Instance__czXjLrH1R1yAIXika6fGbA>

Sign in to **AWS Management Console** as an **IAM User**

**Pre-requisite** - Ensure you have selected the AWS region closest to your location\
For this guide, we will be using us-east-2 (Ohio) as a preferred choice

Type **EC2** in the search bar and click on **EC2** to view the EC2 Dashboard

On the EC2 dashboard click on **Instances** from the left bar to view the EC2 instances

Select the instance named - **First EC2 Instance**

Scroll to the overview section and click on the **Security** tab to view the security related details such as IAM role, security groups, etc

Click on the link **launch-wizard-1** next to the security group name to open the security group wizard

Scroll to the overview section and click on **Outbound rules** tab

Return to the **Linux EC2 Console** and Enter the following commands one by one:

Execute: [[sudo su]]

Then, type: [[curl google.com]]

You're receiving responses because outbound traffic is permitted

Return to the **AWS Console** and click on the **Edit outbound rules** button

Click on the **Delete** button to remove the outbound rule which is allowing **All traffic** from all the port range and protocol, click on the **Save rules** button to modify the outbound rules

The Outbound security group rules are now successfully modified

Return to the **Linux EC2 Console**, then click on Page **Reload** to refresh the page

Enter the following commands one by one:

Execute: [[sudo su]]

Then, type: [[curl google.com]]

You will notice the curl request will timeout because there is no **All traffic**  outbound rule specified in the Security Group assigned to the EC2 instance

Return to the **AWS Console** and click on the **Edit outbound rules** button to add a new rule

Click on **Add rule** button, then search and select **All traffic** as the Type

Select "**Anywhere-IPv4**" for the Destination dropdown to allow outbound traffic to any IPv4 address

Click on **Save rules** button to modify the outbound rules

The Outbound rules in the Security Group will be updated successfully

Amazon Web Services

This guide offers concise instructions on handling EC2 security groups within AWS. It covers modifying, adding, and removing rules, illustrating how these actions affect accessibility to EC2 instances via the terminal.

Playing with EC2 Security Groups