Не удалось перезапустить сетевую службу

Я установил сервер Ubuntu 16.04 в качестве гостя в kvm. Сервер использует 2 интерфейса: Host и Bridge

ip a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host 
       valid_lft forever preferred_lft forever
2: ens3: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000
    link/ether 52:54:00:46:46:ba brd ff:ff:ff:ff:ff:ff
    inet 192.168.122.166/24 brd 192.168.122.255 scope global ens3
       valid_lft forever preferred_lft forever
    inet6 fe80::5054:ff:fe46:46ba/64 scope link 
       valid_lft forever preferred_lft forever
3: ens8: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000
    link/ether 52:54:00:b9:36:a0 brd ff:ff:ff:ff:ff:ff
    inet 192.168.2.161/24 brd 192.168.2.255 scope global ens8
       valid_lft forever preferred_lft forever
    inet6 fe80::5054:ff:feb9:36a0/64 scope link 
       valid_lft forever preferred_lft forever

Необходимо статическое соединение ens8

sudo nano / etc / network / interfaces

# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).

# The loopback network interface
auto lo
iface lo inet loopback

# Source interfaces
# Please check /etc/network/interfaces.d before changing this file
# as interfaces may have been defined in /etc/network/interfaces.d
# See LP: #1262951
#source /etc/network/interfaces.d/*.cfg
auto ens8
iface ens8 inet static
addtress 192.168.2.161
netmask 255.255.255.0
gateway 192.168.2.1
dns-nameservers 127.0.0.53

/ etc / init. д / перезапуск сети

 Restarting networking (via systemctl): networking.service==== AUTHENTICATING FOR org.freedesktop.systemd1.manage-units ===
Authentication is required to restart 'networking.service'.
Authenticating as: Ubuntu (ubuntu)
Password: 
==== AUTHENTICATION COMPLETE ===
Job for networking.service failed because the control process exited with error code. See "systemctl status networking.service" and "journalctl -xe" for details.
 failed!