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I have a Ubuntu server which is running without any issues for the last one year.But now there is a wired issue caught my server and take server offline frequently.

I can connect server via VNC viewer but not with ssh and when I got logged in via vnc I cannot ping to outside world. From outside its is unreachable.

Do any one have any idea.Please help me.

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  • Pease, provide us output from command route -n – 2707974 Aug 31 '15 at 9:47
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Could you run the following commands from VNC?

To understand why you can't connect to the outside world: ip a ping 8.8.8.8 ping google.com

To understand why VNC works and not SSH: ss -lt

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