CODEWITHSUNDEEP
amazon-web-servicesamazon-ec2
Ashish Agarwal
Ashish Agarwal

Reputation: 14925

Connecting to AWS EC2 instance using Private Key and Host IP

I have a private key file named awskey.ppk and a host ip address (let's call this 123.45.678.910

I am trying to connect to the EC2 instance using the command line command -

ssh -i /Users/ashishagarwal/EC2/awskey.ppk [email protected]

This is giving me the error:

Permissions 0644 for '/Users/ashishagarwal/EC2/awskey.ppk' are too open. It is required that your private key files are NOT accessible by others. This private key will be ignored. bad permissions: ignore key: /Users/ashishagarwal/EC2/awskey.ppk Permission denied (publickey).

How do I fix this ?

Upvotes: 2

Views: 5886

Answers (4)

Elmar
Elmar

Reputation: 4455

There is a bit extra work as we need to convert .ppk to .pem file first. Instructions for Macbook: Firtly, we need to install Homebrew and Putty:

/bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)"

brew install putty

Then converting .ppk to .pem like this:

puttygen yourFileLocation/your_aws.ppk -O private-openssh -o yourFileLocation/your_aws.pem

After that, set permission to limit access:

chmod 400 yourFileLocation/your_aws.pem

Now you can connect and login to to your server instance like below:

ssh -i yourFileLocation/your_aws.pem [email protected]

For Windows users you can access and download Putty from here.

Upvotes: 0

Bijendra
Bijendra

Reputation: 10053

The private key files should have file permissions as 400, which could be changed using

chmod 400 file_path

Make sure you are using the correct user name like ec2-user or ubuntu . If you are using unix based system then use .ppk key.

Upvotes: 4

datasage
datasage

Reputation: 19573

Two things.

  1. chmod will fix your permissions. The file needs to be changed to 600 or 400.
  2. ppk format is used by putty, need to convert the key to pem encoded format. You can use the putty keygen tool for this.

Upvotes: 6

Suman
Suman

Reputation: 9581

I'm assuming you are using Mac or Unix (based on the command line).

Run this command:

chmod 400 /Users/ashishagarwal/EC2/awskey.ppk

Then run your SSH command again, and it should work.

Upvotes: 3

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