Passo 2: apt-get update && apt-get upgrade

Passo 3: apt -y install ca-certificates wget net-tools gnupg

Passo 4 
mkdir -p /etc/apt/keyrings && wget https://packages.openvpn.net/as-repo-public.asc -qO /etc/apt/keyrings/as-repository.asc

Passo 5 
echo "deb [arch=amd64 signed-by=/etc/apt/keyrings/as-repository.asc] http://packages.openvpn.net/as/debian noble main">/etc/apt/sources.list.d/openvpn-as-repo.list

Passo 7: apt update && apt -y install openvpn-as


Passo 9 

service openvpn status
service openvpn start