How do I change the PEM file of an EC2 instance?
AWS EC2 Support Instruction:
- Change pem login.
- go to your EC2 console.
- Under NETWORK AND SECURITY, click Key pair. Click Create Key Pair.
- Name your new key pair, save the .pem file.
- Create an SSH connection to your instance and keep it open.
- in PuttyGen, click “Upload” to upload your .pem file.
Table of Contents
Can we change the PEM file in AWS?
You can now use the new PEM file to log in to the server in AWS. Caution: Try the new pem file on the server using a different shell session, in case the new pem file doesn’t work, you can still use the ssh session launched from the old pem file to make changes.
What is the use of PEM file in AWS?
The PEM format is often used to represent certificates, certificate requests, certificate chains, and keys. The typical extension for a PEM format file is . pem , but it doesn’t have to be. AWS does not provide utilities to manipulate PEM files or other certificate formats.
What happens if I lose my EC2 key pair?
If you have lost the key pair, you can create an AMI from the existing instance and then launch a new instance. You can then select a new key pair by following the instance launch wizard.
How to create a PEM key for EC2?
To create a new Pem key: Go to EC2 Dashboard > Key Pair > Create Key Pair. This will download the pem key file for you. For SSH access: You can add your id_rsa.pub to the ~/.ssh/auth* instance file. After that you can ssh using ssh [email protected] You can use the pem key that is associated with that instance using ssh -i “file.pem” [email protected]
How can I redownload the PEM file in AWS EC2?
1. Create a new instance with the same region and VPC. 2. Stop the old machine (do not terminate). 3. Go to EBS, detach the root volume from the old machine. 4.Now it’s time to attach a new volume to the new instance (/dev/sdf). But this newly attached volume will be secondary to the new instance because it will have its default root volume.
When to change key pair for EC2 instance?
Once an instance has been accessed, it is recommended to change the key pair in use, create new users, and generally take ownership of the security of the instance. Follow your organization’s standard security practices instead of relying on the key pair used when the instance was launched.
How do I SSH into an EC2 instance?
SSH into the instance using the old key. Once you have access to the instance, add the public key you got in step 2 to the “~/.ssh/authorized_keys” files, then save the file. Log out of the instance and then try to access the instance with the new key.