Question

No network after ubuntu upgrade to 16.04

Upgraded ubuntu in droplet (do-release-upgrade). Currently it is 16.04 Logged in.

#ping -c3 google.com 
ping: unknown host
sudo service networking status
neworking.service
   Loaded: masked (/dev/null; bad)
   Active: inactive (dead)

Do not know why it was masked but I did unmask. And then again

sudo service networking status
networking.service - LSB: Raise network interfaces.
Loaded: loaded (/etc/init.d/networking: bad; vendor preset: enabled)
Drop-In: /run/systemd/generator/networking.service.d
             50-insserv.conf-$network.conf
Active: active (exited) since Sat 2018-08-11 15:04:02 MSK; 16 min ago
Docs: man:systemd-sysv-generator(8)
Process: 943 ExecStop=/etc/init.d/networking stop (code=exited, status=0/SUCCESS
Process: 946 ExecStart=/etc/init.d/networking start (code=exited, status=0/SUCCESS


cat /etc/network/interfaces

auto lo
iface lo inet loopback

auto ens3
iface ens3 inet static
    address 162.243.XX.XX
    netmask 255.255.255.0
    gateway 162.243.XX.1
    dns-nameservers 8.8.8.8 8.8.4.4


ifconfig - a

ens3  Link encap:Ethernet  HWaddr 00:1b:fc:2d:21:3b  
          BROADCAST MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)


lo        Link encap:Local Loopback  
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:65536  Metric:1
          RX packets:38337 errors:0 dropped:0 overruns:0 frame:0
          TX packets:38337 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1
          RX bytes:3591223 (3.5 MB)  TX bytes:3591223 (3.5 MB)

As I understand, networking service is not working properly. There is nothing in /var/log/syslog or in journalctl -u NetworkManager

I did

sudo ip addr flush dev ens3

sudo service networking restart

But no ip address appear in ens3 interface

Any help appreciated

Show comments

Submit an answer

This textbox defaults to using Markdown to format your answer.

You can type !ref in this text area to quickly search our full set of tutorials, documentation & marketplace offerings and insert the link!

Sign In or Sign Up to Answer

These answers are provided by our Community. If you find them useful, show some love by clicking the heart. If you run into issues leave a comment, or add your own answer to help others.

Want to learn more? Join the DigitalOcean Community!

Join our DigitalOcean community of over a million developers for free! Get help and share knowledge in Q&A, subscribe to topics of interest, and get courses and tools that will help you grow as a developer and scale your project or business.

Were you able to resolve this? I’m getting the same error after upgrading to 18.04