The -Z KeyFile option is used to specify a file which contains the private client key in PEM format.
If both an X.509 client certificate and a private client key are contained in the same file (see the -Z CertificateFile option "-Z CertificateFile - Specify file with X.509 client certificates"), the -Z KeyFile option need not be specified.
If the client key is protected with a passphrase, this passphrase must be entered after the TELNET client has started up when establishing a TLS-secured TELNET connection.
-Z KeyFile |
={<file-name 1..54> | *NONE} |
<file-name 1..54>
Name of the file which contains the private client key.
*NONE
No separate client key file is used.
The default is the file name specified in the -Z CertificateFile option (see "-Z CertificateFile - Specify file with X.509 client certificates").