# openssl req -x509 -nodes -days 3650 -newkey rsa:2048 -keyout server.key -out server.crt -config openssl.cnf

[req]
default_bits       = 2048
prompt             = no
default_md         = sha256
distinguished_name = dn
x509_extensions    = v3_req

[dn]
CN = localhost

[v3_req]
subjectAltName = @alt_names

[alt_names]
DNS.1 = localhost