• If you are still using CentOS 7.9, it's time to convert to Alma 8 with the free centos2alma tool by Plesk or Plesk Migrator. Please let us know your experiences or concerns in this thread:
    CentOS2Alma discussion

Question Let's Encrypt fail over IPv6

Creativados

Basic Pleskian
Server operating system version
Debian 10.13
Plesk version and microupdate number
Versión 18.0.47
Sorry my english, use translator.

I'm having trouble getting ssl certificates with Let's Encrypt .

When I try to get the certificate it returns this error

Captura de pantalla 2022-11-03 055030.png

when I try to pass the debug it tells me this
1667451139601.png

I think I have the server properly configured with IPv6, but I don't know what to think


.\curl.exe -6 aceval.eu

return this

curl: (7) Couldn't connect to server


Any ideas or help.

Thank you
 
aceval.eu has an AAAA (IPv6) record (2001:41d0:203:4b76:)

But I see:

# host aceval.eu
aceval.eu has address 51.83.2.118
aceval.eu has IPv6 address 2001:41d0:701:1000::14cb

Are sure that AAAA record is correctly configured in DNS settings?
 
My result this command

# host aceval.eu
aceval.eu has address 51.83.2.118
aceval.eu has IPv6 address 2001:41d0:203:4b76::
aceval.eu mail is handled by 10 aceval.eu.
 
My result this command

# host aceval.eu
aceval.eu has address 51.83.2.118
aceval.eu has IPv6 address 2001:41d0:203:4b76::
aceval.eu mail is handled by 10 aceval.eu.
Yes, I see the same now.
Is the problem still actual?
 
Do you have an enabled firewall? Try to disable it.
 
@Creativados ,
please be sure that your site available via IPv6.
LE has a priority: it uses IPv6 in case AAAA record exists. so it looks like some misconfiguration on your side.
 
You have a firewall and dns (your two nameservers have different config for this domain) and/or ip configuration problem
I randomly get "2001:41d0:701:1000::14cb" or "2001:41d0:203:4b76::" as the AAAA record for aceval.eu, depending on the nameserver I ask.

And on both IPv6 addresses your webserver is not reachable... (IPv4 is OK)

aceval.png
 
You have a firewall and dns (your two nameservers have different config for this domain) and/or ip configuration problem
I randomly get "2001:41d0:701:1000::14cb" or "2001:41d0:203:4b76::" as the AAAA record for aceval.eu, depending on the nameserver I ask.

And on both IPv6 addresses your webserver is not reachable... (IPv4 is OK)

View attachment 21853
2001:41d0:701:1000::14cb
It was a server configuration error, but I don't know how to get rid of that IP trace

with what NS do you get that name resolution?
 
Other domain, afartis.com1667487860544.png

but not resolve
# dig +short aaaa afartis.com @sdns2.ovh.net

Ans ys resolve my server
# dig +short aaaa afartis.com @hosting.servidor-nombres.com
2001:41d0:203:4b76::


I'm lost
 
Back
Top