ssh: Could not resolve hostname [hostname]: nodename nor servname provided, or not known

Question

I am trying to set up a VPN with a Raspberry Pi, and the first step is gaining the ability to ssh into the device from outside my local network. For whatever re

Answer 1

I needed to connect to remote Amazon server

ssh -i ~/.ssh/test.pem -fN -L 5555:localhost:5678 ubuntu@hostname.com

I was getting the following error.

ssh: Could not resolve hostname : nodename nor servname provided, or not known

Solution For Mac OSX

Pinging the host resolved the issue. I am using Mac OSX Seirra.

ping hostname.com

Now problem resolved. Able to connect to the server.

Note: I tried this solution also. But it didn't work out. Then ping resolved the issue.