OpenSSLコマンドでSSL証明書を発行してAWS EC2のNginxに設定する方法

# openssl version
OpenSSL 1.0.2k-fips  26 Jan 2017

# cd /etc/ngnx
# mkdir ssl
# cd ssl

# openssl genrsa -des3 -out ./yourdomain.com.key 2048

Enter pass phrase for ./yourdomain.com.key:******** ← パスワードを入力+エンター
Verifying - Enter pass phrase for ./yourdomain.com.key:******** ← 再度パスワードを入力+エンター

# ls -l ./
total 4
-rw-r--r-- 1 root root 1743 Aug 28 11:32 yourdomain.com.key

#  openssl req -new -key ./yourdomain.com.key -out ./yourdomain.com.csr
Enter pass phrase for ./yourdomain.com.key:******** ←キー作成時パスワードを入力
You are about to be asked to enter information that will be incorporated
into your certificate request.
What you are about to enter is what is called a Distinguished Name or a DN.
There are quite a few fields but you can leave some blank
For some fields there will be a default value,
If you enter '.', the field will be left blank.
-----
Country Name (2 letter code) [XX]:JP
State or Province Name (full name) []:Fukuoka
Locality Name (eg, city) [Default City]:Fukuoka-shi
Organization Name (eg, company) [Default Company Ltd]:mycompanyname.inc
Organizational Unit Name (eg, section) []:              
Common Name (eg, your name or your server's hostname) []:*.yourdomain.com
Email Address []:

Please enter the following 'extra' attributes
to be sent with your certificate request
A challenge password []:
An optional company name []:

# ls -l ./
total 8
-rw-r--r-- 1 root root 1005 Aug 28 12:11 yourdomain.com.csr
-rw-r--r-- 1 root root 1743 Aug 28 11:32 yourdomain.com.key

# less yourdomain.com.csr

—-BEGIN CERTIFICATE REQUEST—–

………………………………………………………
…………英数字の文字列…………
………………………………………………………

—–END CERTIFICATE REQUEST—–

# vi /etc/nginx/sites-available/default

.....
server {

    listen 443;
    server_name yourdomain.com;
    ssl on;

    # 秘密鍵
    ssl_certificate_key  /etc/nginx/ssl/yourdomain.com.key.rsa;
    # 証明書
    ssl_certificate      /etc/nginx/ssl/yourdomain.com.pem;

    ssl_session_timeout  5m;
    ssl_protocols  SSLv2 SSLv3 TLSv1;
    ssl_ciphers  ALL:!ADH:!EXPORT56:RC4+RSA:+HIGH:+MEDIUM:+LOW:+SSLv2:+EXP;
    ssl_prefer_server_ciphers   on;

    .........
}

$ sudo nginx -t
nginx: the configuration file /etc/nginx/nginx.conf syntax is ok
nginx: configuration file /etc/nginx/nginx.conf test is successful

$ sudo systemctl restart nginx

$ sudo restart nginx.service
Job for nginx.service failed because the control process exited with error code. See "systemctl status nginx.service" and "journalctl -xe" for details.