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List:       fedora-list
Subject:    Re: Certbot error
From:       Samuel Sieb <samuel () sieb ! net>
Date:       2023-04-22 21:34:26
Message-ID: fe05ad96-2dd9-6437-1bbe-ed625ed21776 () sieb ! net
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On 4/22/23 14:30, Patrick O'Callaghan wrote:
> On Sun, 2023-04-23 at 06:47 +0930, Tim via users wrote:
>> On Sat, 2023-04-22 at 18:45 +0100, Patrick O'Callaghan wrote:
>>> My understanding is that it needs port 80 for the initial token
>>> negotiation to get the certificate to set up HTTPS. Requiring port
>>> 443
>>> would be a circular dependency.
>>
> 
>> [...]
> 
>> And, testing that:  If I disable all port 80 connections, I can
>> connect
>> to my webserver using HTTPS over port 443.
>>
>> Their error message seems to indicate that *it* wants a connection
>> response from the webserver on port 80 with your site's domain name
>> in
>> the response headers (to prove you own the site).  This seems to be a
>> bizarre requirement.  Possibly the cert checker needs programming
>> better, rather than Apache needing something done to it.
>>
> 
> That's entirely possible of course.
> 
>> Nor should you really have to have a virtual host.  You could be a
>> webserver that you own totally and it only serves your website.  It
>> seems some oddball demands from the cert checker.
>>
> 
> I do agree with that. I think it's a specific limitation of Certbot
> itself, which (from discussions on the LetsEncrypt site) actually
> messes with your Apache config while it's doing its testing. Other
> implementations of the ACME protocol don't seem to require this, but
> I'm just guessing.

There are other methods.  You can tell it where the webroot is (as 
described by Markus), you can have certbot run its own web server, you 
can use a DNS entry, etc.
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