Ubuntu 17.10 NetworkManager

NetworkManager 

Configuring NetworkManager to use systemd-resolved without dnsmasq in 17.04 

# отключим сетевой менеджер

sudo systemctl stop NetworkManager.service

sudo systemctl disable NetworkManager.service

#

sudo systemctl stop systemd-resolved.service

sudo systemctl disable systemd-resolved.service

# настроим статический ip
.........

# перезагрузим сеть

sudo systemctl start networking.service

sudo systemctl enable networking.service 

Debian отключить NetworkManager

sudo systemctl disable NetworkManager
sudo systemctl stop NetworkManager
sudo systemctl enable networking.service
sudo nano /etc/network/interfaces
    auto eth0
    iface eth0 inet dhcp
sudo systemctl start networking.service