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How To solve this warning error “Warning: Unprotected Private Key File” in AWS EC2

The warning message "Warning: Unprotected Private Key File" is related to the permissions set on your private key file (.pem) used to connect to your AWS EC2 instance. This warning appears when the permissions on the private key file are too permissive, potentially allowing unauthorized users to read the file.

To solve this warning error in AWS EC2, you need to set appropriate permissions on your private key file. The recommended permission setting for the private key file is 400, which means that only the file owner has read and write permissions, and no one else can read the file.

Here's how you can set the correct permissions on the private key file:

Open your terminal or command prompt.

Locate your private key file (.pem). By default, it might be in your home directory under a folder like .ssh/, and its name is often something like key.pem.

Change the permissions of the private key file using the chmod command. Run the following command:vbnetCopy codechmod 400 /path/to/your/private/key.pem Replace /path/to/your/private/key.pem with the actual path to your private key file.

Verify the new permissions using the ls -l command. The output should show that only the owner has read and write permissions, and the group and others have no permissions.For example:vbnetCopy code$ ls -l /path/to/your/private/key.pem -r-------- 1 user_name user_group 1679 Jul 26 10:00 /path/to/your/private/key.pem

Now, try connecting to your EC2 instance using the private key. The warning message should no longer appear, and you should be able to log in successfully.

For example, if you are using the ssh command to connect to your EC2 instance, you can specify the private key with the -i option:

vbnetCopy code

ssh -i /path/to/your/private/key.pem ec2-user@your-ec2-instance-public-ip

Replace /path/to/your/private/key.pem with the actual path to your private key file, and your-ec2-instance-public-ip with the public IP address of your EC2 instance.

Suggested Read: How to fix the EC2 error “Warning: Unprotect Private Key File

By following these steps, you should be able to fix the "Warning: Unprotected Private Key File" error and securely connect to your AWS EC2 instance using the private key.

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