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I recently tried to install OpenVPN on my pi. Since then I've been having trouble with the networking in my Pi. I already removed it and purged it.

I can ssh into my Pi fine (my home network is in perfect condition). But when I try to ping Google it says ping: unknown host google.com Also, whenever I try to use the internet some other way I can't do anything.

How can I solve this? What do I need to do to make a diagnostic?

  • Can you ping 8.8.8.8 (Google's public DNS)? If you get a response its likely a DNS issue, otherwise its likely a routing issue. Both solveable. – tobyd Oct 24 '17 at 15:21
  • It is a DNS issue. I can ping Google's DNS just fine. How would I solve this? – medicengonzo Oct 24 '17 at 22:36
  • When you installed OpenVPN what else did you do? I'm guessing set a static IP? DNS-wise you might want to check the contents of resolv.conf cat /etc/resolv.conf and if its empty sudo -c "echo nameserver 8.8.8.8 > /etc/resolv.conf" then try pinging Google by name. resolv.conf is regenerated on boot (usually, unless thats disabled). If you have a static IP that you set in /etc/network/interfaces you might want to check it has a nameservers line, you'd usually get provided DNS records from your DHCP server / router. – tobyd Oct 25 '17 at 8:11
  • I try it an it gives me -bash: /etc/resolv.conf: Permission denied – medicengonzo Oct 26 '17 at 23:29
  • I do it and it fixes the issue for a moment but somehow the resolv.conf gets overwritten after a moment and the problem continues – medicengonzo Oct 26 '17 at 23:56

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