Owncloud external access trusted domain

Hello,

we are using owncloud version 10.0.10 under ucs 4.3.3-errata456.
Everything works fine as long as we work in the local network. Now we created a DNS record for our public ip and directed port 443 to the owncloud system.
If we want to access the link https://fqdn.example.com/owncloud we get the following error message: “you are trying to access the server from an untrusted domain”

We added our fqdn under the ‘trusted_domains’ array in the config.php like this: 0 => ‘fqdn.example.com’ we also added our fqdn under ‘overwrite.cli.url’

Unfortunatly we still get the same error message. Do I need to make additional changes ?
Could you please point me to the destination of the specific log files ?

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