adguardhome on freebox vm's

[ghost]

hello

my operator is free, I have the latest Freebox ultra. I just created my first virtual machine with AdGuard home with a Debian virtual machine database.

Before I could benefit from the virtual machines on my operator box, I used adguard home on a nas.
In this example with the NAS I managed the active end-to-end and the interface and the requests that went through adgard home

This time I am blocked because I don't know how I can recover either the certificate

if someone could tell me how to navigate via SSH to find the path to the certificate and private key corresponding to the domain name of my freebox. I thank him very much

another request. how do we ensure that the adguardhome DNS is functional after restarting the internet box, for example following a power outage?