SSL issues on subdomains when activating Cloudflare

Security
#1

Hi,

I get ‘ERR_SSL_UNRECOGNIZED_NAME_ALERT’ on all my subdomains (www.test.cleardesign.studio, www.stephen.cleardesign.studio and www.cuttingitfine.cleardesign.studio) when I activate Cloudflare.

I have tried disabling Cloudflare and re-enabling after 24 hours. I have tried changing the SSL settings and using ‘Strict’, ‘Strict (Full)’ and ‘Flexible’ - none of these options work. I’ve also tried disabling universal SSL and then re-enabling it. Nothing seems to work.

I have read the instructions on this ticket but I don’t know how to submit PATCH requests and there isn’t really any instructional information to show you how to in this article…Community Tip - Fixing ERR SSL VERSION OR CIPHER MISMATCH in Google Chrome

For now, I have had to disable Cloudflare all together to get my subdomains working.

Current settings on Cloudflare:

  • Cloudflare temporarily paused
  • SSL/TLS encryption mode: Full (strict)
  • Edge certificate: Universal (active)
  • Always use HTTPS: Off
  • HSTS: Disabled

All other settings are set to the default, standard settings.

Please help!

Thanks, Stephen

#2

Subdomain too deep has more on that.

As for the encryption mode, that’s unrelated to the issue and it should be Full Strict, otherwise it is not secure.

#3

So, just to be clear, to solve the issue I just need to set the ‘www.subdomain’ A record to ‘DNS only’ and then it should be fine?

#4

Yes, either you unproxy the record or you get an ACM certificate.

1 Like
#5

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