Invalid SSL 526 (I am going crazy)
So I am going this Invalid SSL certificate Error code 526 error only when I use Cloudflare's recommended Full (Strict) mode on SSL.
Please note that the SSL I use was created on Cloudflare > my website > SSL/TLS > Origin Server > Origin Certificates and I used that certificate on my controlpanel (aaPanel) successfully but I keep getting this 526 error when full strict is turned on.
When I switch to full or flexible then the website is reachable.
What am I missing? what am I doing wrong?
If it helps, I am using Ubuntu server on Digital Ocean and all the domains have the same issue.
2 Replies
I guess no one knows how to fix?
526 means cloudflare can't verify the certificate your server is presenting.
cloudflare certificate verification only happens when your tls mode is >= full (strict)
perhaps try to briefly Un proxy and connect to your website and check the certificate the server is presenting? cloudflare has no issues verifying cloudflare issued origin certificates or certificates issued by trusted CAs