OpenSSLCmdlineCA

1) Creating CA private key (1024b)

openssl req -out slave.csr -newkey rsa:1024 -nodes -keyout slave.key

2) Finishing the self-signed certificate (10 years)

openssl req -new -x509 -days 3650 -key ca.key -out cacert.pem

3) New server CSR (1024b)

openssl req -out server.csr -newkey rsa:1024 -nodes -keyout server.key

4) Finishing the server certificate (3 years)

openssl x509 -req -days 1095 -in server.csr -CA cacert.pem -CAkey ca.key -CAcreateserial -out server.crt