# Problem adding 2 certs for linked domains
**URL:** https://community.letsencrypt.org/t/problem-adding-2-certs-for-linked-domains/178315
**Category:** Help
**Created:** [May 25, 2022, 5:44pm UTC](https://community.letsencrypt.org/t/problem-adding-2-certs-for-linked-domains/178315 "2022-05-25T17:44:33Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@lingber](https://community.letsencrypt.org/u/lingber)
#### Post date: [May 25, 2022, 5:44pm UTC](https://community.letsencrypt.org/t/problem-adding-2-certs-for-linked-domains/178315/1 "2022-05-25T17:44:33Z")
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. [crt.sh | example.com](https://crt.sh/?q=example.com)), so withholding your domain name here does not increase secrecy, but only makes it harder for us to provide help.
My domain is:
> **[Lester Ingber's Archive](https://www.ingber.com/)**
>
> ASA: Adaptive Simulated Annealing, Optimization, Importance Sampling, Nonlinear Stochastic Systems. COMBAT: Statistical Mechanics of Combat. KARATE: Art and Science, Applications to Learning. MARKETS: Statistical Mechanics of Equities, Futures,...
I ran this command:
/usr/bin/certbot --expand -d [louise.ingber.com](http://louise.ingber.com),[creekhouse.ingber.com](http://creekhouse.ingber.com)
It produced this output:
Saving debug log to /var/log/letsencrypt/letsencrypt.log
Requesting a certificate for [louise.ingber.com](http://louise.ingber.com) and [creekhouse.ingber.com](http://creekhouse.ingber.com)
/usr/bin/certbot --expand -d [louise.ingber.com](http://louise.ingber.com),[creekhouse.ingber.com](http://creekhouse.ingber.com)
Certbot failed to authenticate some domains (authenticator: apache). The Certificate Authority reported these problems:
Domain: [creekhouse.ingber.com](http://creekhouse.ingber.com)
Type: unauthorized
Detail: 2600:3c01::f03c:91ff:fe93:e6f3: Invalid response from [http://creekhouse.ingber.com/.well-known/acme-challenge/HXOkhT73SpZBI2d7WPk9Nqa3W4MTIlOYJAGYkeBENf4:](http://creekhouse.ingber.com/.well-known/acme-challenge/HXOkhT73SpZBI2d7WPk9Nqa3W4MTIlOYJAGYkeBENf4:) 403
Domain: [louise.ingber.com](http://louise.ingber.com)
Type: unauthorized
Detail: 2600:3c01::f03c:91ff:fe93:e6f3: Invalid response from [http://louise.ingber.com/.well-known/acme-challenge/KbsIptDiS1iutV8MfEWGkt8-ad1Npr28-HHS0pi13XQ:](http://louise.ingber.com/.well-known/acme-challenge/KbsIptDiS1iutV8MfEWGkt8-ad1Npr28-HHS0pi13XQ:) 403
Hint: The Certificate Authority failed to verify the temporary Apache configuration changes made by Certbot. Ensure that the listed domains point to this Apache server and that it is accessible from the internet.
Some challenges have failed.
Ask for help or search for solutions at [https://community.letsencrypt.org](https://community.letsencrypt.org). See the logfile /var/log/letsencrypt/letsencrypt.log or re-run Certbot with -v for more details.
My web server is (include version):
apache2 (latest update)
The operating system my web server runs on is (include version):
Ubuntu focal
My hosting provider, if applicable, is:
Linode
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):
no
The version of my client is (e.g. output of `certbot --version` or `certbot-auto --version` if you're using Certbot):
1.27.0
---
### Author:  [@rg305](https://community.letsencrypt.org/u/rg305)
#### Post date: [May 25, 2022, 7:09pm UTC](https://community.letsencrypt.org/t/problem-adding-2-certs-for-linked-domains/178315/2 "2022-05-25T19:09:33Z")
Since it is `Apache` we are dealing with...
Let's begin at the beginning [take nothing for granted].
Please show the output of:
`apachectl -t -D DUMP_VHOSTS`
---
### Author:  [@system](https://community.letsencrypt.org/u/system)
#### Post date: [June 24, 2022, 7:10pm UTC](https://community.letsencrypt.org/t/problem-adding-2-certs-for-linked-domains/178315/3 "2022-06-24T19:10:28Z")
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