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I am running a remote server a VPS, all was well,

Upgraded to Ubuntu 16.04 and immediately my ssh (putty) stopped allowing me access, it just can't find server, cannot ping... it says

network unreachable

Checked all firewalls and all exactly same as before,

All firewalls open on correct ports, all software runs correctly on reboot, its all working except I cannot connect to server by any means, I cannot SSH,

When running service networking status I get the following error report,

networking failure error report

It is failing to raise networking services and so I cannot access server, it also lists dhclient failure,

My Hosting provider provides a terminal interface so I can run commands luckily,

Please help as I have tried ALL articles on net for this including here and no luck, I now have a server which is working fine except neither I or anyone else can ever contact it,

The contents of my /etc/network/interfaces file are correct,

Loopback interface
auto lo eth0
iface lo inet loopback

Primary Network Interface
auto eth0
iface eth0 inet dhcp

please advise as I am not willing to start from scratch with server and don't know why Ubuntu has not fixed this ongoing bug which many people have reported,

Hope you can help?

edwinksl
  • 24,109
Thomas Branley
  • 1

1 Answers1

4

In 16.04, because of persistent naming, your interface is probably no longer eth0. Check:

ifconfig

For example, my ethernet interface is now enp0s25. Correct your /etc/network/interfaces file as needed and then:

sudo ifdown enp0s25 && sudo ifup enp0s25

Of course, substitue your interface name as needed.

Why is enp#s# in stead of eth# ? Whats the meaning of enp#s#?

Community
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chili555
  • 61,330