Hi,

I'm using Ubuntu 10.04 LTS.

I checked the set up of passwordless authentication in this way: .When i excecuted the above command it din't ask me for any password. So i thought it might be passwordless authentication is set up alreday.Am i verifying the passwordless authentication in a right way?

Where can i find the logs related to sftp or ssh. I searched bfor /var/log/secure but dint find it.

Also executing the sftp caommands manually to transfer the file from remote to local not giving any error but the thing is asking for the password as passwordless authentication is not properly set.

When i write the bash script where in i used sftp commands to transfer the file. Here also i'm not getting any error and file is being transferred sucessfully but asking for the password due to authentication.

So how can i set the passwordless authentication and verify it.
One more query is if i go for passwordless authentication does it affect other things as multiple users are using the same ubuntu machine and alos hadoop is installed on this machine. So enabling passwordless authentication will affect other things or it is only applicable for my work?
I'm bit confused here.

Thanks,
Shree

---------- Post updated 06-10-14 at 01:30 AM ---------- Previous update was 06-09-14 at 11:46 PM ----------

Hi,

I got the steps to create passwordless login to a remote machine from local machine.
Below are the steps:

Code:

localserver# mkdir ~/.ssh
localserver# cd ~/.ssh
localserver# ssh-keygen -t rsalocalserver# ssh user@<remoteserver_ip>
Password: 
localserver# ssh user@<remoteserver_ip> mkdir -p .ssh
localserver# cat .ssh/id_rsa.pub | ssh user@<remoteserver_ip> 'cat >> .ssh/authorized_keys'
localserver# ssh user@<remoteserver_ip> "chmod 700 .ssh; chmod 640 .ssh/authorized_keys"
localserver# ssh user@<remoteserver_ip>

In the above steps, in which location do i need to create the ssh directory on local and remote machine.I already have ssh directory on this path /etc/ssh both on local and remote machines. So do i need to create ssh directory in the differen tlocation or do i need to use the ssh directory already existing?In case if i use the existiong ssh directory does it overwrite the existing contents with new contents? Please clarify the above queries.

Thanks,Shree