What is the name of the domain?
sudomain.domain.com
What is the error number?
Error code 526
What is the error message?
The origin web server does not have a valid SSL certificate.
What is the issue you’re encountering
I can’t access my subdomains and they show me this error “Invalid SSL certificate Error code 526” and while my domain I can still access. So, what should I do in this case?
What steps have you taken to resolve the issue?
I’ve disabled Cloudflare to try and renew the subdomain in question, but it still doesn’t work. and my SSL/TLS is in full strict mode. So, what else can I do so that I never get this kind of error again?
Screenshot of the error
And I had renewed all the certificates for its domains. And I don’t know why when it’s in full strict mode it doesn’t work. And that I have to put it in Full for it to work. So, can you please tell me more about this?
Please verify that your server is responding with a valid certificate.
As you didn’t share your domain, we won’t be able to do that for you.
You can try this command:
curl -svo /dev/null https://sub.example.com --connect-to ::SERVER_IP
Replace SERVER_IP with the server’s actual IP address, not the Cloudflare IP.
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Thank you for reply…
Im fixed that…
Thank you so much to renew correctly te certificat of my domain in using sudo certbot --nginx -d subdomain.domain.com…
For domains proxied by Cloudflare, you might want to consider using a Cloudflare Origin Certificate instead. That saves you the trouble of renewing, but only works for proxied domains.
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Please, show how can i make that?
Thanks for reply. So, I used this “Cloudflare origin CA - Cloudflare SSL/TLS docs” for my domain. But it only supports my domain and a single subdomain. It doesn’t support other domains in other subdomains. So, what should I do? Should I change it and use letsencrypt preferably in all my domains and subdomains of my domains? Because I can’t afford the upgrade version of “Cloudflare origin CA - Cloudflare SSL/TLS docs”…
