HowTo Network introduction system globally

[Joo Nasss]

I have Tried to use Debian AS sys-net.

But If I Edit the Debian Template I become an Network Error when I use apt Update ( No TinY Proxy Response)

Have any Body a Tipp...

And what Network Interface can I Install easily

[Qubes]

Your template VMs do not need to be assigned a NetVM to be able to
update them or install software in them. The package managers in your
TemplateVMs are configured to update using a proxy system. Please see
here in the documentation,
https://www.qubes-os.org/doc/software-update-domu/, scroll down to
"Updates proxy".

The proxy get configured in '/etc/qubes-rpc/policy/qubes.UpdatesProxy'.