Check connections

1. Access to EC2

   • Select Instances
   • Select EC2 Public
   • Select Connect

2. In the tab Connect to instance :
   • Select SSH Client
   • Copy the address sample

3. Prepare the key
   • Move downloaded key to ~/.ssh , this is the directory that specializes in storing ssh keys

1. Before connect, we have to chmod 400 for key, then based on the sample ssh address in step 2, change the local key address to ssh to EC2 Public

5. Try ping to internet, ping to 2 EC2 in Private Subnet

6. Copy the key from local to EC2 Public using the scp command, used to ssh to EC2 Private

7. Check if you have received the key in EC2 public

8. Before ssh, remember to chmod 400 for the key

9. Use ssh key to 2 Private instances

10. Try pinging the internet from EC2 Private

11. As a result, we cannot ping, in the next step we will configure.