openssl unable to pass -config and -signkey options in the same command

I am attempting to generate a self-signed certificate with my custom config file for openssl. However, the options -config and -signkey are generating errors as below when used in the same command.

command attempt 1:

openssl req -x509 -config my_ssl.cnf \ -in my_new.csr -signkey my_private_key.pem \ -out my_new_crt.pem -days 3650 -sha256 \ -extfile my_V3.ext

Error message:

req: Unrecognized flag signkey
req: Use -help for summary.

Command Attempt 2:

openssl x509 -req -config my_ssl.cnf \ -in my_new.csr -signkey my_private_key.pem \ -out my_new_crt.pem -days 3650 -sha256 \ -extfile my_V3.ext

Error Message:

x509: Unrecognized flag config
x509: Use -help for summary.

What is going wrong in the above commands? And how can I pass both the -config and -signkey options together in the same command?

1 Answer

Nothing - there's no -config option in x509 and no -signkey option for req.

man x509

man req