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  • The Horde component is removed from Plesk Installer. We recommend switching to another webmail software supported in Plesk.

Issue Cloudflare Error 520/521

O

othmaqsa

Regular Pleskian
Server operating system version
Ubuntu 20.04.5 LTS
Plesk version and microupdate number
18.0.49
Hello,

I want to reinstall Cloudflare. If I remember correctly, I had already tested it before, but I got a 520/521 error (website down), except that the server was working normally.

Is there a conflict between Fail2ban and Cloudflare?

Any idea to solve this problem?
 
BTW @Peter Debik , I have already a rDNS configured in the router of my data center, there is no impact regarding the delivery of mail when the cloudflare is configured , that's it ? ?
 
I feel uncapable of predicting what will happen in the future. It is really difficult to say. However, when you follow the instructions given in the above mentioned knowledge base article, very likely you can succeed configuring your server to work with Cloudflare.
 
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