# Certbot - Unable to Pass Challenge - DNS A/AAAA Records Not Present for Domain
**URL:** https://community.letsencrypt.org/t/certbot-unable-to-pass-challenge-dns-a-aaaa-records-not-present-for-domain/92002
**Category:** Help
**Created:** [April 24, 2019, 11:31am UTC](https://community.letsencrypt.org/t/certbot-unable-to-pass-challenge-dns-a-aaaa-records-not-present-for-domain/92002 "2019-04-24T11:31:51Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@msp1](https://community.letsencrypt.org/u/msp1)
#### Post date: [April 24, 2019, 11:31am UTC](https://community.letsencrypt.org/t/certbot-unable-to-pass-challenge-dns-a-aaaa-records-not-present-for-domain/92002/1 "2019-04-24T11:31:52Z")
Note: we already configure ssl on same server for another domain [mspconcepts.com](http://mspconcepts.com).
Please help ASAP help must be appreciated.
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. [https://crt.sh/?q=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:mspsystems.co.uk
I ran this command:./certbot-auto --apache
It produced this output:
[root@localhost local]# ./certbot-auto --apache
Saving debug log to /var/log/letsencrypt/letsencrypt.log
Plugins selected: Authenticator apache, Installer apache
Which names would you like to activate HTTPS for?
* * *
1: [mspsystems.co.uk](http://mspsystems.co.uk)
2: [www.mspsystems.co.uk](http://www.mspsystems.co.uk)
* * *
Select the appropriate numbers separated by commas and/or spaces, or leave input
blank to select all options shown (Enter ‘c’ to cancel): 2
Obtaining a new certificate
Performing the following challenges:
http-01 challenge for [www.mspsystems.co.uk](http://www.mspsystems.co.uk)
Waiting for verification…
Challenge failed for domain [www.mspsystems.co.uk](http://www.mspsystems.co.uk)
http-01 challenge for [www.mspsystems.co.uk](http://www.mspsystems.co.uk)
Cleaning up challenges
Some challenges have failed.
IMPORTANT NOTES:
- The following errors were reported by the server:
My web server is (include version):apache2.4
The operating system my web server runs on is (include version): centos 6
My hosting provider, if applicable, is: 1and1
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): certbot 0.33.1
---
### Author:  [@JuergenAuer](https://community.letsencrypt.org/u/JuergenAuer)
#### Post date: [April 24, 2019, 1:40pm UTC](https://community.letsencrypt.org/t/certbot-unable-to-pass-challenge-dns-a-aaaa-records-not-present-for-domain/92002/2 "2019-04-24T13:40:12Z")
Hi @msp1
> [@msp1](#):
>
> My domain is:mspsystems.co.uk
your www - version has ipv4- and ip6 - addresses ( [https://check-your-website.server-daten.de/?q=mspsystems.co.uk](https://check-your-website.server-daten.de/?q=mspsystems.co.uk) ):
| Host | T | IP-Address | is auth. | ∑ Queries | ∑ Timeout |
| --- | --- | --- | --- | --- | --- |
| [mspsystems.co.uk](http://mspsystems.co.uk) | A | 202.131.107.107 | yes | 1 | 0 |
| | AAAA | | yes | | |
| [www.mspsystems.co.uk](http://www.mspsystems.co.uk) | A | 202.131.107.107 | yes | 1 | 0 |
| | AAAA | 2001:8d8:1000:3096:d0cf:f6eb:5be4:e84a | yes | | |
But your ipv6 doesn't work:
| Domainname | Http-Status | redirect | Sec. | G |
| --- | --- | --- | --- | --- |
| • [http://mspsystems.co.uk/](http://mspsystems.co.uk/) | | | | |
| 202.131.107.107 | 301 | [https://mspsystems.co.uk/](https://mspsystems.co.uk/) | 0.300 | A |
| | | | | |
| • [http://www.mspsystems.co.uk/](http://www.mspsystems.co.uk/) | | | | |
| 202.131.107.107 | 301 | [https://www.mspsystems.co.uk/](https://www.mspsystems.co.uk/) | 0.280 | A |
| | | | | |
| • [http://www.mspsystems.co.uk/](http://www.mspsystems.co.uk/) | | | | |
| 2001:8d8:1000:3096:d0cf:f6eb:5be4:e84a | 301 | [http://mspsystems.co.uk/](http://mspsystems.co.uk/) | 0.523 | D |
| | | | | |
| • [https://mspsystems.co.uk/](https://mspsystems.co.uk/) | | | | |
| 202.131.107.107 | 301 | [https://www.mspsystems.co.uk/](https://www.mspsystems.co.uk/) | 1.597 | B |
| | | | | |
| • [https://www.mspsystems.co.uk/](https://www.mspsystems.co.uk/) | | | | |
| 202.131.107.107 | 200 | | 2.560 | N |
| Certificate error: RemoteCertificateNameMismatch | | | | |
| | | | | |
| • [https://www.mspsystems.co.uk/](https://www.mspsystems.co.uk/) | | | | |
| 2001:8d8:1000:3096:d0cf:f6eb:5be4:e84a | -10 | | 0.050 | P |
| SecureChannelFailure - The request was aborted: Could not create SSL/TLS secure channel. | | | | |
| | | | | |
| • [http://mspsystems.co.uk/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de](http://mspsystems.co.uk/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de) | | | | |
| 202.131.107.107 | 301 | [https://mspsystems.co.uk/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de](https://mspsystems.co.uk/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de) | 0.280 | A |
| Visible Content: Moved Permanently The document has moved here . Apache/2.2.15 (CentOS) Server at [mspsystems.co.uk](http://mspsystems.co.uk) Port 80 | | | | |
| | | | | |
| • [http://www.mspsystems.co.uk/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de](http://www.mspsystems.co.uk/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de) | | | | |
| 202.131.107.107 | 301 | [https://www.mspsystems.co.uk/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de](https://www.mspsystems.co.uk/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de) | 0.287 | A |
| Visible Content: Moved Permanently The document has moved here . Apache/2.2.15 (CentOS) Server at [www.mspsystems.co.uk](http://www.mspsystems.co.uk) Port 80 | | | | |
| | | | | |
| • [http://www.mspsystems.co.uk/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de](http://www.mspsystems.co.uk/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de) | | | | |
| 2001:8d8:1000:3096:d0cf:f6eb:5be4:e84a | 204 | | 0.050 | A |
| Visible Content: | | | | |
| | | | | |
| • [https://mspsystems.co.uk/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de](https://mspsystems.co.uk/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de) | 301 | [https://www.mspsystems.co.uk/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de](https://www.mspsystems.co.uk/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de) | 1.296 | A |
| Visible Content: | | | | |
| | | | | |
| • [https://www.mspsystems.co.uk/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de](https://www.mspsystems.co.uk/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de) | -10 | | 0.066 | P |
| SecureChannelFailure - The request was aborted: Could not create SSL/TLS secure channel. | | | | |
ipv6 + http + www + /.well-known/acme-challenge has a wrong http status 204 fetching an unknown file.
That's critical, Letsencrypt prefers ipv6.
So:
- remove your ipv6 address, recheck your domain, then create a new certificate and install it (ipv4 and ipv6), then fix your ipv6 (or)
- fix your ipv6.
PS: But you use a new Letsencrypt certificate:
```nohighlight
CN=mspsystems.co.uk
24.04.2019
23.07.2019
expires in 90 days mspsystems.co.uk - 1 entry
```
That has only one domain name, so the www version isn't secure. You should create one certificate with both domain names. That's normally easier then having two certificates and two vHosts.
---
### Author:  [@system](https://community.letsencrypt.org/u/system)
#### Post date: [May 24, 2019, 1:40pm UTC](https://community.letsencrypt.org/t/certbot-unable-to-pass-challenge-dns-a-aaaa-records-not-present-for-domain/92002/3 "2019-05-24T13:40:15Z")
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