关于WordPress，在我移除 /etc/nginx/conf.d 目录下的 _ssl.conf 和 _http.conf 文件后，似乎开始正常工作了。
但是我仍然无法获得ssl证书

[root@kusanagi71 ~]# kusanagi ssl --email xxxxx@gmail.com cx_html
Saving debug log to /var/log/letsencrypt/letsencrypt.log
Obtaining a new certificate
Performing the following challenges:
http-01 challenge for www.xx.me
http-01 challenge for xx.me
Using the webroot path /home/kusanagi/cx_html/DocumentRoot for all unmatched dom                                                                                     ains.
Waiting for verification...
Cleaning up challenges
Failed authorization procedure. www.xx.me (http-01): urn:acme:error:connection                                                                                      :: The server could not connect to the client to verify the domain :: Could not                                                                                      connect to 153.126.131.7, 24q.me (http-01): urn:acme:error:connection :: The ser                                                                                     ver could not connect to the client to verify the domain :: Could not connect to                                                                                      153.126.131.7

IMPORTANT NOTES:
 - The following errors were reported by the server:

   Domain: www.xx.me
   Type:   connection
   Detail: Could not connect to 153.126.131.x

   Domain: xx.me
   Type:   connection
   Detail: Could not connect to 153.126.131.x

   To fix these errors, please make sure that your domain name was
   entered correctly and the DNS A record(s) for that domain
   contain(s) the right IP address. Additionally, please check that
   your computer has a publicly routable IP address and that no
   firewalls are preventing the server from communicating with the
   client. If you're using the webroot plugin, you should also verify
   that you are serving files from the webroot path you provided.
Cannot get Let\'s Encrypt SSL Certificate files.
Failed.

感谢。
但是亲爱的，我的指令里并没有http://，甚至编辑这个帖子的时候也没有。
似乎是在发表在这的时候自动补上的，所以问题并不在这。

这个系统似乎有问题，我按照
https://cn.kusanagi.tokyo/document/
上的步骤，重复多次重建sakura的vps依然无法正常建立WordPress