Building a Keystore
Use this command to create a keystore file in PEM format:
cat <signed-certificate>.pem <keyfile>.pem <keystore.pem>
If you are using PKCS12 as the file type (preferred) instead of PEM, you must additionally convert the PEM file to PKCS12, as follows:
openssl pkcs12 -export -in <keystore>.pem -out <keystore.p12>
-name "friendly name"
The "friendly name" (sometimes referred to as an alias) is optional. It can be any string.