openssl req \ -newkey rsa:4096 \ -keyout lvh.me.key \ -x509 \ -nodes \ -new \ -out lvh.me.crt \ -subj "/CN=*.lvh.me" \ -reqexts SAN \ -extensions SAN \ -config <(cat /System/Library/OpenSSL/openssl.cnf \ <(printf '[SAN]\nsubjectAltName=DNS:lvh.me,DNS:*.lvh.me')) \ -sha256 \ -days 3650
![*.lvh.meでSSL - Qiita](https://cdn-ak-scissors.b.st-hatena.com/image/square/f0bef621809a00831919a1880cf0eadd02e39937/height=288;version=1;width=512/https%3A%2F%2Fqiita-user-contents.imgix.net%2Fhttps%253A%252F%252Fcdn.qiita.com%252Fassets%252Fpublic%252Farticle-ogp-background-412672c5f0600ab9a64263b751f1bc81.png%3Fixlib%3Drb-4.0.0%26w%3D1200%26mark64%3DaHR0cHM6Ly9xaWl0YS11c2VyLWNvbnRlbnRzLmltZ2l4Lm5ldC9-dGV4dD9peGxpYj1yYi00LjAuMCZ3PTk3MiZoPTM3OCZ0eHQ9JTJBLmx2aC5tZSVFMyU4MSVBN1NTTCZ0eHQtYWxpZ249bGVmdCUyQ3RvcCZ0eHQtY29sb3I9JTIzMjEyMTIxJnR4dC1mb250PUhpcmFnaW5vJTIwU2FucyUyMFc2JnR4dC1zaXplPTU2JnM9YjgxYWQxNmYwMjAzNDFkZTIyYTdhNTQyNTJlZjRlMzQ%26mark-x%3D142%26mark-y%3D57%26blend64%3DaHR0cHM6Ly9xaWl0YS11c2VyLWNvbnRlbnRzLmltZ2l4Lm5ldC9-dGV4dD9peGxpYj1yYi00LjAuMCZoPTc2Jnc9NzcwJnR4dD0lNDBwcHdvcmtzJnR4dC1jb2xvcj0lMjMyMTIxMjEmdHh0LWZvbnQ9SGlyYWdpbm8lMjBTYW5zJTIwVzYmdHh0LXNpemU9MzYmdHh0LWFsaWduPWxlZnQlMkN0b3Amcz0wYjI3ZDM4ZmExYzJhNTdmNmM4ODdlZGVmYTUyMDZkZA%26blend-x%3D142%26blend-y%3D436%26blend-mode%3Dnormal%26txt64%3DaW4gZXNhIExMQw%26txt-width%3D770%26txt-clip%3Dend%252Cellipsis%26txt-color%3D%2523212121%26txt-font%3DHiragino%2520Sans%2520W6%26txt-size%3D36%26txt-x%3D156%26txt-y%3D536%26s%3Dc3e23c65ad12561fa3492c7c134eeab3)