EC2 instance with custom ssh key pair

 

Description

Following howto describes how to build EC2 instance with custom user and corresponding ssh public key.

User will be created:

  • as a member of wheel group
  • with /bin/bash shell
  • ALL=(ALL) NOPASSWD:ALL sudo rights.

Preconfiguration

1. Create key pair

To create key pair, execute ssh-keygen command. By default, keys will be created into ./.ssh/ directory

Configs

2. EC2 instance deployment

Deploy EC2 instance in standard way. In Step 3, in the bottom paste following script.

Replace name with proper username and public key using previously generated id_rsa.pub



		

	



	

		

			


		

	



	

		
		

			

		

	



	

		

			

3. Default key pair



 


You can still using existing key pairs to allow ec2-user to log in


		

	



	

		
		

			

		

	



	

		

			

4. EC2 deployment check



When EC2 instance will be deployed, proceed to test phase


		

	



	

		
		

			

		

	


Test Area



	

		

			

5. Establish ssh session using IPv4



obsd$ ssh 3.121.225.228


 


 



6. Establish ssh session using IPv6



obsd$ ssh 2a05:d014:60e:7100:81f0:fe14:570a:e305


		

	



	

		
		

			

		

	


me@radkowski.pro