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In this tutorial, you will learn how you can create SSH key pair with custom name. This means that you no longer have to use the "id_rsa" and "id_rsa.pub" keys, you can generate "username" and "username.pub" instead.
On Windows, you can add this line to your "%USERPROFILE%\.ssh\config" file:
IdentityFile "/c/dev/new folder/mykey"