SSL Error with Proxy State and Traefik

Hey Guys,

i have an server docker stack with an Traefik and create an cloudflare an A entry to the server. The A entry with an Proxy. When i call the URL i got an ERR_SSL_VERSION_OR_CIPHER_MISMATCH error in Chrome. When i use DNS instead of Proxy it works.

What do i wrong?


Either you are using a hostname which is on a level too deep to be covered by the Universal certificate or your certificate has not been issued yet. Both is covered by #tutorials.

What’s the hostname?

The Hostname is

That will be the former case then with a level too deep, #tutorials covers that.

You’ll need a $10/month proxy certificate from Cloudflare for that, on top of your server certificate.

Ah ok, is it possible to use, for example?

Absolutely, that’s one level beneath your domain and covered by the Universal certificate.

Just make sure you have a certificate on your server too.

Thanks Sandro :slight_smile:

Mostest welcome :smiley: :partying_face:


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