Certbot クライアント

$ sudo certbot
Saving debug log to /var/log/letsencrypt/letsencrypt.log
Certbot doesn't know how to automatically configure the web server on this system. However, it can still get a certificate for you. Please run "certbot certonly" to do so. You'll need to manually configure your web server to use the resulting certificate.
$ sudo less /var/log/letsencrypt/letsencrypt.log

2019-02-15 11:53:24,221:DEBUG:certbot.main:certbot version: 0.30.2
2019-02-15 11:53:24,222:DEBUG:certbot.main:Arguments: []
2019-02-15 11:53:24,222:DEBUG:certbot.main:Discovered plugins: PluginsRegistry(PluginEntryPoint#manual,PluginEntryPoint#null,PluginEntryPoint#standalone,PluginEntryPoint#webroot)
2019-02-15 11:53:24,246:DEBUG:certbot.log:Root logging level set at 20
2019-02-15 11:53:24,247:INFO:certbot.log:Saving debug log to /var/log/letsencrypt/letsencrypt.log
2019-02-15 11:53:24,248:DEBUG:certbot.plugins.selection:Requested authenticator None and installer None
2019-02-15 11:53:24,248:DEBUG:certbot.plugins.selection:No candidate plugin
2019-02-15 11:53:24,248:DEBUG:certbot.plugins.selection:Selected authenticator None and installer None

$ sudo certbot certonly --agree-tos --webroot -w /var/www/html/ -d tomoyan.net
Saving debug log to /var/log/letsencrypt/letsencrypt.log
Plugins selected: Authenticator webroot, Installer None
Enter email address (used for urgent renewal and security notices) (Enter 'c' to
cancel): tomoyan@tomoyan.net

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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 tomoyan.net
Using the webroot path /var/www/html for all unmatched domains.
Waiting for verification...
Cleaning up challenges
Failed authorization procedure. tomoyan.net (http-01): urn:ietf:params:acme:error:connection :: The server could not connect to the client to verify the domain :: Fetching http://www.tomoyan.net.well-known/acme-challenge/V134KUuu24abYl4WMcicF22FOFrp7AxkOJHBkVzFA4c: Error getting validation data

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

   Domain: tomoyan.net
   Type:   connection
   Detail: Fetching
   http://www.tomoyan.net.well-known/acme-challenge/V134KUuu24abYl4WMcicF22FOFrp7AxkOJHBkVzFA4c:
   Error getting validation data

   To fix these errors, please make sure that your domain name was
   entered correctly and the DNS A/AAAA 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.
 - 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.

$ sudo certbot certonly --agree-tos --webroot -w /var/www/html/ -d monsters-g.com
Saving debug log to /var/log/letsencrypt/letsencrypt.log
Plugins selected: Authenticator webroot, Installer None
Obtaining a new certificate
Performing the following challenges:
http-01 challenge for monsters-g.com
Using the webroot path /var/www/html for all unmatched domains.
Waiting for verification...
Cleaning up challenges
Failed authorization procedure. monsters-g.com (http-01): urn:ietf:params:acme:error:connection :: The server could not connect to the client to verify the domain :: Fetching http://www.tomoyan.net.well-known/acme-challenge/7aQcZPghit_VT2lp1DvkULSFPC4zPru8fVCPZaF5P8A: Error getting validation data

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

   Domain: monsters-g.com
   Type:   connection
   Detail: Fetching
   http://www.tomoyan.net.well-known/acme-challenge/7aQcZPghit_VT2lp1DvkULSFPC4zPru8fVCPZaF5P8A:
   Error getting validation data

   To fix these errors, please make sure that your domain name was
   entered correctly and the DNS A/AAAA 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.