I have been trying to use PAC to connect to a ssh running system, with private .ppk key. No success so far. I can connect normally when using putty. When I switch to PAC.. first I had "WARNING: UNPROTECTED PRIVATE KEY FILE!" then I ran chmod 0400 to the ppk. Now, the PAC is asking for passphrase, which I do not need when I am using normal putty.
Can you help ?