Debian 8 (Jessie) - Web サーバ Nginx で SSL 接続！

# apt-get -y install openssl

# cd /etc/ssl/private
# openssl genrsa -des3 -out server.key 2048
Generating RSA private key, 2048 bit long modulus
...................+++
.....+++
e is 65537 (0x10001)
Enter pass phrase for server.key:              # <= パスフレーズ設定
Verifying - Enter pass phrase for server.key:  # <= 確認再入力

# openssl rsa -in server.key -out server.key
Enter pass phrase for server.key:              # <= パスフレーズ
writing RSA key

# openssl req -new -days 3650 -key server.key -out server.csr
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) [AU]:JP                                    # <= 国の略名
State or Province Name (full name) [Some-State]:Shimane                 # <= 都道府県名
Locality Name (eg, city) []:Matsue                                      # <= 市区町村名
Organization Name (eg, company) [Internet Widgits Pty Ltd]:mk-mode.com  # <= サイト名（何でもよい）
Organizational Unit Name (eg, section) []:                              # <= 部署名（空でよい）
Common Name (e.g. server FQDN or YOUR name) []:www.mk-mode.com          # <= ホスト名
Email Address []: webmaster@mk-mode.com                                 # <= 管理者メールアドレス
Please enter the following 'extra' attributes
to be sent with your certificate request
A challenge password []:                                                # <= 追加属性・空エンターでよい
An optional company name []:                                            # <= 追加属性・空エンターでよい

# openssl x509 -in server.csr -out server.crt -req -signkey server.key -days 3650
Signature ok
subject=/C=JP/ST=Hiroshima/L=Hiroshima/O=GTS/OU=Server World/CN=www.server.world/emailAddress=xxx@server.world
Getting Private key

# chmod 400 server.*

# cd /etc/nginx/conf.d
# cp example_ssl.conf ssl.conf

# HTTPS server
#
server {
    listen       443 ssl;
    server_name  localhost;

    #ssl_certificate      cert.pem;
    ssl_certificate      /etc/ssl/private/server.crt;
    #ssl_certificate_key  cert.key;
    ssl_certificate_key  /etc/ssl/private/server.key;

    ssl_session_cache    shared:SSL:1m;
    ssl_session_timeout  5m;

    ssl_ciphers  HIGH:!aNULL:!MD5;
    ssl_prefer_server_ciphers  on;

    location / {
        root   html;
        index  index.html index.htm;
    }
}

# systemctl restart nginx

# ufw allow 443/tcp
Rule added
Rule added (v6)

# ufw status
    :
443/tcp                    ALLOW       Anywhere
    :
443/tcp                    ALLOW       Anywhere (v6)