I was trying to connect to my Ubuntu server using SSH private key. For that I already converted my
id_rsa file from
~/.ssh directory to a ppk file using PuTTYgen, but after loading my
.ppk key I get below error:
Unable to load key file "F:\ubuntu.ppk" (Putty key format too new)
Solution 1 : Download the latest version of Putty
Usually the root cause is you are using a newer version of PuTTYgen than the version of PuTTY. So you can download the latest version of Putty
Solution 2 : Re-export your private key to version 2 of ppk using puttygen
Open your puttygen , click
Parameters for saving key files...
Select PPK file version : 2
load your ssh private key again , then save as ppk file
Now issue should be fixed ,no “Putty key format too new” error again.