openssl genrsa -out ca.key 2048
openssl req -new -key astro.ogatism.com.key -out astro.ogatism.com.csr
Country Name (2 letter code) [AU]:JP
State or Province Name (full name) [Some-State]:Kanagawa
Locality Name (eg, city) []:Kawasaki
Organization Name (eg, company) [Internet Widgits Pty Ltd]:ogatism
Organizational Unit Name (eg, section) []:
Common Name (e.g. server FQDN or YOUR name) []:astro.ogatism.com
Email Address []:
openssl x509 -text -noout -in file.crt
openssl rsa -text -noout -in file.key
openssl req -text -noout -in file.csr
# 疎通確認
openssl s_client -connect test.ogatism.com:20443