Looking someone helps me clear this problem < currently, I am searching relevant>
- Generate a free TLS certificate signed by Cloudflare - Done
- Upload Original (.pem) and Private key (.Key) to my VPS - Done
- Edge Certificates the status is Active (type: Universal)
Case 1: SSL/TLS checked “Flexible” my Wordpress everything is good!
Case 2: SSL/TLS checked “Full, event Full (Strict)” my site return the NGINX Welcome page.
Looking forward to resolving it. Thank you!