Convert PPK file to PEM
To convert putty PPK format file to Linux OpenSSL format, run puttygen SSH_KEY.ppk -O private-openssh -o SSH_KEY.pem To install puttygen, On CentOS yum install putty -y On Debian/Ubuntu apt-get install putty-tools -y Related Posts puttygen: error loading x.ppk: PuTTY key format too new Remove SSH Private Key Passphrase SSH