client dev tun proto udp remote vpn.quietlife.nl 1194 remote-cert-tls server user nobody group nogroup cipher AES-256-GCM auth SHA512 key-direction 1 persist-key script-security 2 up /etc/openvpn/update-systemd-resolved down /etc/openvpn/update-systemd-resolved down-pre dhcp-option DNSSEC allow-downgrade dhcp-option DOMAIN-ROUTE .