Need help activating Let's Encrypt for A record with different IP

Help
1

Hi! the situation is:
main domain: example.com IP 11.11.11.11
sudomain: sub.example.com A record IP 22.22.22.22 (it's on a different hosting)

everything works fine, but unfortunately not with SSL :slight_smile: is it possible to do something in this situation? except to have everything with one ip and one hosting

P.S Plesk panel.

3

Hi @lmz, and welcome to the LE community forum :slight_smile:

Each system can obtain a cert for any FQDN that resolves via global DNS to an IP it controls.

IP 11.11.11.11 can get a cert for that domain.

IP 22.22.22.22 can get a cert for that domain.

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4

Your subdomain on its different hosting should be able to get a certificate there: at its different hosting.

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5

But what if the autossl is not issuing a certificate? there Cpanel

An error occurred the last time AutoSSL ran, on January 10, 2023:
A DNS (Domain Name System) or web server misconfiguration may exist. The domain “sub.example.com” resolved to an IP address “11.11.11.11” that does not exist on this server.

but when i ping sub.example.com i see IP 22.22.22.22 :slight_smile: Why Cpanel sees wrong ip?
11.11.11.11 that IP for example.com, but not for sub.example.com

6

That sounds like two different DNS systems are in use.
DNS should be global and synchronized.
If you care to share some real details, maybe we can unravel this issue.

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7

Beats me, but that's hardly the scope of this Community IMO.

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8

of course two different, because there two different hosting, the main domain has an A record with the ip of another hosting and that's it

main domain: cinaitalia.org (plesk panel)
subdomain: tasks.cinaitalia.org (cpanel)

two different IP, main domain on plesk has additional A record: 88.99.27.19, subdomain it has everything by default, I don't understand why on the side cpanel, autossl fail

9

Maybe the multiple IPs has something to do with it:

Name:      tasks.cinaitalia.org
Addresses: 46.4.90.206
           88.99.27.19

Should that be one IP?, or two IPs??

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10

46.4.90.206 seems to be the apex domains IP address.. So any client connecting to the tasks subdomain had a 50 % chance of connecting to the correct IP address of 88.99.27.19 and a 50 % chance of connecting to the incorrect IP address of 46.4.90.206. Doesn't sound correct to me.

Edit:
Seems to be corrected currently, only a single IP address (88.99.27.19) visible for the tasks subdomain at the moment.

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11

Yes, you are right, I did not notice this, this "record A" plesk panel automatically substitutes this entry, thanks for the help, I figured out the error, the topic is closed

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12

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