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サーバー関連｜Nginxの設定
======================

参考
---

[Ubuntu 20.04にNginxをインストールする方法](https://www.digitalocean.com/community/tutorials/how-to-install-nginx-on-ubuntu-20-04-ja)

[【Ubuntu】Let’s Encrypt+nginxでSSL/TLS（https接続）を設定する方法](https://vpslife.server-memo.net/letsencrypt_nginx/)

環境
----

VPS, WebARENA indigo, Ubuntu20.04, 1vCPU 1G
DDNS Nowで取得したドメインで接続 xxx.f5.si, ooo.f5.si

操作ログ
------


```
$ sudo apt update
$ sudo apt upgrade
```

```
$ sudo apt install nginx
```

http(暗号化なし)ではつながる。
{{:server:pasted:20220718-172614.png}}

サーバーブロックの設定

```
ubuntu@i-12100000390816:~$ sudo mkdir -p /var/www/xxx.f5.si/html
ubuntu@i-12100000390816:~$ sudo chown -R $USER:$USER /var/www/xxx.f5.si/html
ubuntu@i-12100000390816:~$ sudo chmod -R 755 /var/www/xxx.f5.si
ubuntu@i-12100000390816:~$ vi /var/www/xxx.f5.si/html/index.html  #効果確認用ページ
ubuntu@i-12100000390816:~$ sudo ln -s /etc/nginx/sites-available/xxx.f5.si /etc/nginx/sites-enabled/
ubuntu@i-12100000390816:~$
```

```
ubuntu@i-12100000390816:~$ cat /etc/nginx/sites-enabled/xxx.f5.si 
server {
        listen 80;
        listen [::]:80;

        root /var/www/xxx.f5.si/html;
        index index.html index.htm index.nginx-debian.html;

        server_name xxx.f5.si www.xxx.f5.si;

        location / {
                try_files $uri $uri/ =404;
        }
}
ubuntu@i-12100000390816:~$ 

```

```
ubuntu@i-12100000390816:~$ sudo systemctl restart nginx.service
```
xxx.f5.si　効果確認用テストページが表示された
{{:server:pasted:20220718-175444.png}}
ooo.f5.si (xxx.f5.siと同じIP)　デフォルトのページが表示された
{{:server:pasted:20220718-181553.png}}

---

SSL証明書

xxx.f5.siのSSL証明書を取って、HTTPS接続可能にする。

```
ubuntu@i-12100000390816:~$ sudo apt install certbot python3-certbot-nginx
ubuntu@i-12100000390816:~$ sudo certbot --nginx -d xxx.f5.si -m xxx@xxxxxx.co.jp --agree-tos
Saving debug log to /var/log/letsencrypt/letsencrypt.log
Plugins selected: Authenticator nginx, Installer nginx

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Would you be willing to share your email address with the Electronic Frontier
Foundation, a founding partner of the Let's Encrypt project and the non-profit
organization that develops Certbot? We'd like to send you email about our work
encrypting the web, EFF news, campaigns, and ways to support digital freedom.
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
(Y)es/(N)o: n
Obtaining a new certificate
Performing the following challenges:
http-01 challenge for xxx.f5.si
Waiting for verification...
Cleaning up challenges
Deploying Certificate to VirtualHost /etc/nginx/sites-enabled/xxx.f5.si

Please choose whether or not to redirect HTTP traffic to HTTPS, removing HTTP access.
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
1: No redirect - Make no further changes to the webserver configuration.
2: Redirect - Make all requests redirect to secure HTTPS access. Choose this for
new sites, or if you're confident your site works on HTTPS. You can undo this
change by editing your web server's configuration.
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Select the appropriate number [1-2] then [enter] (press 'c' to cancel): 2
Redirecting all traffic on port 80 to ssl in /etc/nginx/sites-enabled/xxx.f5.si

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Congratulations! You have successfully enabled https://xxx.f5.si

You should test your configuration at:
https://www.ssllabs.com/ssltest/analyze.html?d=xxx.f5.si
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

IMPORTANT NOTES:
 - Congratulations! Your certificate and chain have been saved at:
   /etc/letsencrypt/live/xxx.f5.si/fullchain.pem
   Your key file has been saved at:
   /etc/letsencrypt/live/xxx.f5.si/privkey.pem
   Your cert will expire on 2022-10-16. To obtain a new or tweaked
   version of this certificate in the future, simply run certbot again
   with the "certonly" option. To non-interactively renew *all* of
   your certificates, run "certbot renew"
 - Your account credentials have been saved in your Certbot
   configuration directory at /etc/letsencrypt. You should make a
   secure backup of this folder now. This configuration directory will
   also contain certificates and private keys obtained by Certbot so
   making regular backups of this folder is ideal.
 - If you like Certbot, please consider supporting our work by:

   Donating to ISRG / Let's Encrypt:   https://letsencrypt.org/donate
   Donating to EFF:                    https://eff.org/donate-le

ubuntu@i-12100000390816:~$ 

```

できた。

{{:server:pasted:20220718-180407.png}}

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