Convert a putty ppk file to a pem file

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Recently, I am working on the AWS project, so I have to access AWS EC2 instance. ppk file was provided me to connect it, But I have to connect it with Linux machine so I required pem file. Now I have to convert the ppk file to pem file. I tried numerous things, google it, but nothing works. Finally I got the solution.

For below Setups of convert ppk file to a pem file.

Install Putty

First we need to install putty on your machine.

  • If using MAC you will run the following command to install putty:
    # sudo port install putty
    
  • If using Ubuntu run the following command to install putty:
    # sudo apt-get install putty-tools
    
  • If using Linux/CentOS run the following command to install putty:
    # yum install putty
    
  • Generate pem file

    To generate the pem file run the following command:

    # puttygen awsprivatekey.ppk -O private-openssh -o awsprivatekey.pem
    

    Set Pemission

    Now, lets set the pem file to have the proper permissions:

    # chmod 400 awsprivatekey.pem
    

    Access AWS Server

    Now you have a successfully generated pem file that you can use to connect to your EC2 instances. Use following command to connect to your EC2 instances:

    # ssh -i awsprivatekey.pem ec2-user@ec2-server-ip
    
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