Error: ssh: Could not resolve hostname error: Name or service not known hadoop code example

Example 1: ssh: Could not resolve hostname : Name or service not known on scp command

scp $MY_FILE ubuntu@192.128.23.23

Example 2: unable to resolve host s: Name or service not known

You may add your domain name to your /etc/hosts

like this

knguyen@knguyen:~$ cat /etc/hosts
127.0.0.1 knguyen