How to converting a PPK file to a PEM file on Linux?

Question

How to converting a PuTTY Private Key Files(PPK) file to a Privacy Enhanced Mail (PEM) file for accessing AWS ec2 instances on Linux?

Answer 1

Install the putty tools

sudo apt-get install putty-tools

Generate the pem file run the following command as-

puttygen ppkkey.ppk -O private-openssh -o pemkey.pem

Place the pemkey.pem file in your ~/.ssh directory as-

cp pemkey.pem ~/.ssh

Set the pem file to have the proper permissions as-

chmod 400 pemkey.pem

Now, we have a valid pem file that we can use to connect to our EC2 instances from Linux.
Now Connect to your pem by this command

ssh -i pemkey.pem user@ec2-instancedotcom

Similarly, if we want to convert pem file to ppk, we can do it like this

puttygen pemKey.pem -o ppkKey.ppk -O private

#Flags:
-o Tells it where to write out the converted putty private key
-O private Tells it that you want a putty private key.