====== How to convert ssh private key id_rsa to Putty .ppk ======

This how to will show how to convert id_rsa keys that were already created on Linux, without a passphrase, to .ppk extension so it can be used with Putty on a Windows box.

  * Download PuttyGen from here and open it. Once it opens click on Conversions => Import Key
  * Search for the id_rsa key on you computer
  * Click on “Save Private Key” and “Yes” to save without a passphrase.
  * Choose a location and a name for the new .ppk key
  * Now go to putty and add a path to key for the connection.

fonte: https://sites.google.com/site/xiangyangsite/home/technical-tips/linux-unix/common-tips/how-to-convert-ssh-id_rsa-keys-to-putty-ppk