SSL certificate for

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My domain is: (DDNS)

I ran this command:

It produced this output:

My web server is (include version): Synology router SRM 1.2

The operating system my web server runs on is (include version): SRM 1.2

My hosting provider, if applicable, is: UPC Poland, dynamic IP

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):
at hosting page - yes

The version of my client is (e.g. output of certbot --version or certbot-auto --version if you’re using Certbot): n/a

Dear Let’s Encrypt Friends,

For now I have working page which has SSL certificate and by CNAME DNS redirect to page.
But more comfortable would be to have directly on SSL certificate which until now it was not possible to achive ( I thaught so ).

So is it possible with this standard DDNS provider (* ?

Best regards !

Hi @Twix

the Synology DSM has an integrated solution.

But I don't know if this

has Letsencrypt support.

But now, your port 80 is closed ( ):

Domainname Http-Status redirect Sec. G -14 10.024 T
Timeout - The operation has timed out -14 10.027 T
Timeout - The operation has timed out 200 0.943 N
Certificate error: RemoteCertificateNameMismatch 200 0.690 N
Certificate error: RemoteCertificateNameMismatch -14 10.026 T
Timeout - The operation has timed out
Visible Content: -14 10.030 T
Timeout - The operation has timed out
Visible Content:

So you have to open port 80 to use http-01 validation.

There is a Sectigo certificate., OU=Free SSL, OU=Domain Control Validated
expires in 89 days, - 2 entries

Checking your main domain there is the same Sectigo certificate.

And there are two Letsencrypt certificates ( ):

CertSpotter-Id Issuer not before not after Domain names LE-Duplicate next LE
935564945 CN=Let's Encrypt Authority X3, O=Let's Encrypt, C=US 2019-05-28 08:43:51 2019-08-26 08:43:51 - 1 entries duplicate nr. 1
935373234 CN=Sectigo RSA Domain Validation Secure Server CA, O=Sectigo Limited, L=Salford, C=GB, ST=Greater Manchester 2019-05-28 00:00:00 2019-08-26 23:59:59, - 2 entries

If it is the same host: Create one certificate with three domain names - non-www, www and the - certificate (first add a dns entry with the missing entry).

Hello Jurgen,

Thank you for a fast respond.
Regarding certificates it’s true. I thaught that create SSL cert. is not possible tht’s why I created this on external poage and add CNAME DNS to

Bout the question my is still the same, would be possible to have SSL cert directly on ?

Then the answer is the same. If you are able to install a Sectigo certificate, you are able to install a Letsencrypt certificate.

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