ERROR: ssh: Could not resolve hostname knode: Temporary failure in name resolution

Question

I have already got the ssh key but when I am trying to copy the ssh key to my node I am getting error in copying that key.

I have already tried to do that in root user and also tried many other methods but none of it worked.

I have tried the command:

sudo-copy-id -i knode

Using this command the key must have been copied to my node.

But I am getting this error:

/usr/bin/ssh-copy-id: INFO: Source of key(s) to be installed: "/home/moglix/.ssh/id_rsa.pub"
/usr/bin/ssh-copy-id: INFO: attempting to log in with the new key(s), to filter out any that are already installed

/usr/bin/ssh-copy-id: ERROR: ssh: Could not resolve hostname knode: Temporary failure in name resolution

Answer 1

Are you sure about you have the knode machine? I think your problem is you dont have any virtual or real machine named knode.

Answer 2

host name knode is not resolving, use fully qualified domain name or check why host name is not resolving. You can are an entry in /etc/host file for "knode" with ip as workaround