AWS

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What is EC2 in AWS?

Amazon Elastic Compute Cloud (Amazon EC2) is a web service that provides resizable compute capacity in the cloud.

How to launch Amazon Linux EC2 Instance?

We need to follow below steps:

Step 1: Sign in AWS Account. Click on the EC2 icon under Recently visited services. If it is not visible search EC2 in the search bar. Then click on the EC2 icon.

Step 2: Click on Launch instance -> Launch instance Button.

Step 3: Choose any Machine. Here I choose Amazon Linux 2. Then click on the Select button.

Step 4: Select machine type. Here I choose t2.micro. Then click on Configure Instance Details button.

Step 5: In this screen If you want you can Configure Instance Details. Then click on Add Storage button.

Step 6: In this screen, you can change Volume Size and Volume Type as well as also Add New Volume. Then click on Add Tags button.

Step 7: In this screen, you can add Tag Name for adding tag name click on Add Tag button and enter tag name. Then click on Configure Security Group button.

Step 8: In this screen, you can Add Rule like allow Protocol and Port Number. Then click on the Review and Launch button.

Step 9: In the Review Instance Launch screen you can verify all details then click on the Launch button.

Step 10: In this screen, you can choose: Select an existing key pair or create a new key pair. If you did not create any key pair already or if you want to use new key pair then select Create a new key pair option. Give key pair name and click on Download Key pair button.

Step 11: If you want to use existing key pair then Choose an existing key pair option. Then click on the check box and then click on the Launch Instances button.

Step 12: In this screen, you can see Instances Launch Status. Click on Instance ID.

Step 13: In this screen, you can see created Instance.

How to Stop EC2 Instance?

Below Actions need to perform for stop, running ec2 instance.

Click on the Actions button -> Instance State -> Click on Stop Button

Click on the Yes, Stop button.

How to Start EC2 Instance?

Below Actions need to perform for start, stopped ec2 instance.

Click on the Actions button -> Instance State -> Click on Start Button

OR

Select ec2 instance -> Click on Instance state -> Click Start instance

Now instance will start.

How to Delete/ Terminate EC2 Instance?

Below Steps need to perform for the delete ec2 instance.

Step 1: Select ec2 instance.

Step 2: Click on Actions button -> Instance State -> Click on Terminate button

Step 3: Click on the Yes, Terminate button.

Step 4: Now, the ec2 instance terminates.

How to assign Elastic IP to EC2 instance?

Step 1: In the below screen you can see selected ec2 instance is not associated with Elastic IPs.

Step 2: Go to the Elastic IPs tab. Click on Allocate new address button.

Step 3: I am selecting the Amazon Pool scope. Click on Allocate Button.

Step 4: Click on the Close button.

Step 5: Click on the Actions button. Click on the Associate Address button.

Step 6: Select ec2 instance. Click on the Associate button.

Step 7: Now you will see a success message. Click on the Close button.

Step 8: Now elastic IP address associated to ec2 instance. Click on Instance Id.

Step 9: Now you can see elastic IP is associated with IPv4 Public IP address.

How to deregister Elastic IP?

Step 1: Go to the Elastic IPs tab. Click on the Actions button -> Disassociate Address button.

Step 2: Click on Disassociate address button.

Step 3: Now elastic IP, disassociate from ec2 instance. You can see the below screen.

Step 4: Now finally Release elastic IP address. Go to the Elastic IPs tab. Click on the Actions button -> Click the Release addresses button.

Step 5: Click on the Release button.

Step 6: Now elastic IP address Release successfully also, removed from showing list.

How to solve .pem file bad permissions issue?

If you face the below issue while connecting ec2 instance using Windows System then the below steps need to follow:

Step 1: Go to the pem file location -> Right click on pem file -> Click on Properties button -> Click Security Button -> Click on Advanced Button

Step 2: Click on Add Button.

Step 3: Click on the Select a principal button.

Step 4: Inside Enter the object name to select, text field type “Administrator”. Click the Check Names button. Click on the Advanced… button.

Step 5: Click on Find Now button. Select your system user. Click the OK button.

Step 6: Now you can see the object name to select text field value, changed with your user name. Click on OK Button.

Step 7: Basic permissions Options. Check Full control. Click on the OK button.

Step 8: Click on Disable inheritance button. Click on Remove all inherited permissions from this object.

Step 9: Click on Apply -> Click on the OK button.

Step 10: Click on the OK button.

How to generate .ppk file from .pem file?

Step 1: Download and install PuTTYgen in your system. If it is not already installed in your system.

Step 2: Open PuTTYgen. Then click on Load Button.

Step 3: Then select the .pem file. Click on the Open button.

Step 4: Click on the OK button.

Step 5: Then click on Save private key button. Then click on the yes button

Step 6: Give file name. Then click on the Save button.

Step 7: Now .ppk file is available in your system.

How to upload a file from the local machine to the EC2 instance?

Syntex: scp -i Pem_File_Location Upload_File_Location EC2_USER@Public_IPv4_DNS : Destination_File_Location

Example: To upload a single file. Use the below command. Here I am going to upload only 1.txt file.

Example: To upload multiple files. Use the below command. Here I am going to upload all .txt extension files.

Example: To upload multiple files. Use the below command. Here I am going to upload all types of extension files (.txt, .docx etc).

How to download a file from the EC2 instance to the local machine?

Syntex: scp -i Pem_File_Location EC2_USER@Public_IPv4_DNS : Source_File_Location Destination_File_Location

Example: To download a single file. Use the below command. Here I am going to download only 1.txt file.

Example: To download multiple files. Use the below command. Here I am going to download all .txt extension files.

Example: To download multiple files. Use the below command. Here I am going to download all types of extension files (.txt, .docx etc).

Important Points:

1. This post showing the screenshot view may be different at the time of practical. If you follow the concept then definitely you will get the desired output.

2. If you are not using EC2 Instance then you should stop EC2 instance. Stopped ec2 instance will not charge you.

3. If there is an elastic IP address that is not associated with running the ec2 instance. Release it otherwise it will charge.

4. While launching EC2 instance, instance type selection should be based on requirement type.