hadoopmaster@dhruvhadoop1-HP-Compaq-dc5800-Small-Form-Factor:~/.ssh$ ssh-copy-id -i ~/.ssh/id_rsa.pub slave-1 /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: connect to host slave-1 port 22: Connection refused
I'd generally take "connection refused" to mean that the target server isn't listening on port 22.
What's the output of
netstat -an|grep 22 when run on slave-1?
You should get something like:
$ netstat -an|grep 22 tcp 0 0 0.0.0.0:22 0.0.0.0:* LISTEN
Probably you need to install/start the ssh server on slave-1
I have the same problem. sometime the error is simple, ssh is not installed. the openssh-client should be installed on your local machine, and openssh-server should be installed on the remote computer. However, you can install both openssh-client and openssh-server on both machines.
Use this :
sudo apt-get update sudo apt-get install openssh-server openssh-client