Challenge visible HTTP but not HTTPS I can see it remote BUT letsencrypt can't see it?

Please fill out the fields below so we can help you better. Note: you must provide your domain name to get help. Domain names for issued certificates are all made public in Certificate Transparency logs (e.g., so withholding your domain name here does not increase secrecy, but only makes it harder for us to provide help.

My domain is:

I ran this command: certbot --apache --debug-challenges

It produced this output:
[root@gos ~]# sudo certbot --apache
Saving debug log to /var/log/letsencrypt/letsencrypt.log
Plugins selected: Authenticator apache, Installer apache
No names were found in your configuration files. Please enter in your domain
name(s) (comma and/or space separated) (Enter 'c' to cancel):
Requesting a certificate for
Performing the following challenges:
http-01 challenge for
Waiting for verification...
Challenge failed for domain
http-01 challenge for
Cleaning up challenges
Some challenges have failed.


  • The following errors were reported by the server:

    Type: connection
    Detail: Fetching
    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.

My web server is (include version): Apache 2.6

The operating system my web server runs on is (include version): RHEL 7

My hosting provider, if applicable, is: State University of New York at New Paltz

I can login to a root shell on my machine (yes or no, or I don't know): yes

I'm using a control panel to manage my site (no, or provide the name and version of the control panel):

The version of my client is (e.g. output of certbot --version or certbot-auto --version if you're using Certbot): the latest I just installed it

It could be you're seeing secondary validation vantage point attempts in your log files. The error (without any notice of "secondary") is of the primary validation vantage point. And that one is mandatory. See also: Multi-Perspective Validation Improves Domain Validation Security - Let's Encrypt

Do you have some kind of firewall blocking certain IP address ranges in place?


I can't get to that URL from my computer either. Your site has to be accessible worldwide in order to use an HTTP-01 challenge.

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SORRY I teseted OFF campus access on the wrong machine! It is still blocked at campus firewall I should not have posted.

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