My domain is: hr.dyanamicflowsystems.com
I ran this command:
~$ sudo certbot --apache -d hr.dynamicflowsystems.com
It produced this output:****
/usr/local/bin/certbot has insecure permissions!
To learn how to fix them, visit Certbot-auto deployment best practices
Saving debug log to /var/log/letsencrypt/letsencrypt.log
Plugins selected: Authenticator apache, Installer apache
Obtaining a new certificate
Performing the following challenges:
http-01 challenge for hr.dynamicflowsystems.com
Enabled Apache rewrite module
Waiting for verification…
Challenge failed for domain hr.dynamicflowsystems.com
http-01 challenge for hr.dynamicflowsystems.com
Cleaning up challenges
Some challenges have failed.
IMPORTANT NOTES:
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The following errors were reported by the server:
Domain: hr.dynamicflowsystems.com
Type: connection
Detail: Fetching
http://hr.dynamicflowsystems.com/.well-known/acme-challenge/jJVVJJn7oSsqEqh6TzKLF1euCwUPDuZmhjb9cKC7U20:
Timeout during connect (likely firewall problem)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.