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My domain is: www.djv.us
I ran this command: certbot certonly --standalone -d www.djv.us
It produced this output:
Saving debug log to /var/log/letsencrypt/letsencrypt.log
Cert is due for renewal, auto-renewing...
Renewing an existing certificate
Performing the following challenges:
tls-sni-01 challenge for www.djv.us
Waiting for verification...
Cleaning up challenges
Failed authorization procedure. www.djv.us (tls-sni-01): urn:acme:error:connection :: The server could not connect to the client to verify the domain :: Failed to connect to 216.58.216.147:443 for tls-sni-01 challenge
IMPORTANT NOTES:
-
The following errors were reported by the server:
Domain: www.djv.us
Type: connection
Detail: Failed to connect to 216.58.216.147:443 for tls-sni-01
challengeTo 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.
My operating system is (include version): Arch (uname -r = 4.10.13-1-ARCH)
My web server is (include version): I've no idea, I'm serving exclusively static content
My hosting provider, if applicable, is: Google Cloud Platform
I can login to a root shell on my machine (yes or no, or I don't know): n/a
I'm using a control panel to manage my site (no, or provide the name and version of the control panel): n/a
Looks like some DNS trickery has recently been deployed - the ip address certbot is pulling up is within google but seems bogus. nslookup returns something else:
$ nslookup
www.djv.us
Server: 10.0.0.1
Address: 10.0.0.1#53
Non-authoritative answer:
www.djv.us canonical name = ghs.googlehosted.com.
Name: ghs.googlehosted.com
Address: 172.217.6.147
Name: ghs.googlehosted.com
Address: 2607:f8b0:4000:802::2013
... but the Address changes frequently.