Module 5: How to Connect to EC2

 How to connect to an EC2 instance from your local machine 

Let us see how to connect to an EC2 running in AWS from your local machine.

Pre-requistes:

1. Keys(for e.g., yourkey.pem) already downloaded in your local machine, preferably in Downloads folder.
2. EC2 instance is up and running
3. For windows laptop, you need to install Git by downloading from this URL - https://git-scm.com/downloads. For Apple laptop you need to download iTerm from here.

Steps to connect to your EC2 instance:

1. Go to AWS console.
2. Click on EC2, click on running instances link

3. Select the checkbox of EC2 you would like to connect to.
4. Click on Connect or Action, Connect. Under SSH client.

 

Copy the url from SSH which looks like below:
For e.g.
ssh -i "mykey.pem" ubuntu@dns_name.compute.amazonaws.com

Windows Laptop instructions
5. Go to your local machine, Open Git Bash in Windows

make sure you are in downloads directory where your keys got downloaded. Type the below commands:

type below commands: 

pwd

this should tell you which directory you are and then navigate to downloads dir.

cd ~/downloads 

Now copy the value from Example in the above screen

ssh -i "mykey.pem" ubuntu@dns_name.compute.amazonaws.com

and then type enter, say yes and enter

Mac Book Laptop or iMac Instructions

Open iTerm window, type the below command to go to downloads directory.

cd downloads

For few Mac laptops, it may add .txt in the end of pem file. in that case you need to remove .txt in the end

pwd
and then execute below commands to make sure you are not making keys publicly viewable. 

chmod 400 *.pem

6. Paste the url from example highlighted above in step # 4.

ssh -i "mykey.pem" ubuntu@dns_name.compute.amazonaws.com

7. type yes when it is asking to connect.
8. now you should be in AWS cloud, screen should show something like this, It means you are successfully connected to EC2 instance running on AWS cloud.