.ppk
files. However, the tool can also convert keys to and from other formats.PuTTYgen.exe
on Windows is a graphical tool. A command-line version is available for Linux..msi
package installation. There is no need for a separate PuTTYgen download. Download the PuTTY installation package. For detailed installation instructions, see PuTTY installation instructions.SSH-2 RSA
with 2048 bit key size is good for most people; another good well-known alternative is ECDSA
).authorized_keys
file with your favorite editor, and cut-and-paste the public key output by the above command to the authorized_keys
file. Save the file. Configure PuTTY to use your private key file (here keyfile.ppk
). Then test if login works. See configuring public key authentication for PuTTY.