Recently I do migration from cpanel to google cloud. Then I set my external IP in cloudflare’s DNS,
Without cloudflare proxy, its running good,
But when I use cloudflare proxy, it shows Error 521: Web Server is down.
For overcoming this, I update ufw, as follow: https://github.com/Paul-Reed/cloudflare-ufw, this script allow cloudflare IP ranges whitelisted.
But the sad thing is, still I get Error 521: Web Server is down.
I searched over the google, but still I can’t solve the problem.
What should I do now?
My site: https://newsofbangla.com