IPV4 disappears from Ubuntu VM


wayner

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I have an Ubuntu VM on my unRAID server.  I have now seen this happen at least three times - I lose my ssh or RDP connection to the VM but I can still do a VNC connection using the unRAID web UI. I am unable to ping the IP address of the VM. When I go in via VPN and do an ifconfig I can see that the line that usually has the IPv4 information - the address, the Bcast and the Mask has disappeared.  So it looks like my IPv4 configuration has vanished.  See the attached screenshot.

 

Has anyone seen this?  How do you fix this?  I am running Ubuntu 16.04 and I am using DHCP on the VM.  Would it work better if I used a Static IP?  How would I even set a static IP?

 

2017-10-09.png

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