networking - ubuntu server and networkmanager - Ask Ubuntu


i have problem ubuntu server (16.10) , network manager.

the system freshly installed (an offline install, no ethernet cable attached) , @ first boot plugged cable ethernet port, issued dhclient; apt-get update; apt-get install network-manager, filled file (/etc/networkmanager/system-connections/ethernetinterface) data:

[802-3-ethernet] auto-negotiate=true mac-address=<<ethernet card mac address>>  [connection] id=ethernetinterface uuid=<<randomly generated uuid>> type=802-3-ethernet  [ipv6] method=ignore  [ipv4] method=manual address1=172.16.20.153,172.16.0.254 dns=8.8.8.8;8.8.4.4;

(the ethernet mac , uuid filled).

now, enough make pc automatically connect @ boot, now... no way.

the nmcli d command outputs network interfaces unmanaged. file /etc/network/interfaces contains loopback device.

i tried edit networkmanager.conf file, setting managed=true, without luck.

how can enable interface? or how can track problem?

best regards

edit:

i know server not managed nm (in fact not pre-installed).

however need networkmanager features (dbus interface, automatic fallback on other connections when using mobile interfaces, integration modemmanager). that's why installed network-manager. not working: maybe have change default configuration, maybe have enable it, or maybe there rule somewhere make default network connections handler. know where? otherwise i'll have desktop version, preferred server version since didn't need gui

the ubuntu server edition isn't managed networkmanager. it's managed /etc/networks/interfaces. here configurate interfaces:

german wiki (cant find english 1 now): https://wiki.ubuntuusers.de/interfaces/


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