Multi-Tenant without Domain

Install / Update Deployment
6

I start to add a subdomain (sub1) from the Cpanel in my website abc.com. I am using Cloudflare then I add “A” record with my website IP. Then I create an index.html file on my hosting server, it is working fine.
Then I update ClouldFalre A record IP address (sub1) with my ERPNext server, and update the ERPNext Multi-Tenant settings:

  1. bench config dns_multitenant on
  2. Update the host’s file:
    198.222.4.1 sub1.abc.com (for example)
  3. bench setup nginx
  4. sudo service nginx restart

When I check sub1.abc.com in the browser, I received an error:

Error 521

Ray ID: 67cf7bb…494f • 2021-08-11 06:42:20 UTC

Web server is down

Anything I missed?

Regards,
MAK