Configuring SSH Access for Remote Collection

To collect data on a remote Linux* system or Intel® Xeon Phi™ coprocessor, configure SSH to work in a password-less mode so it does not prompt for the password on each invocation.

For remote collection on a Linux host system, set up the password-less mode as follows:

1. Generate the key with an empty passphrase:

   host> ssh-keygen

2. Add the key to the ssh-agent:

   host> ssh-add

   If the ssh-agent has not started, launch it as follows:

   host> eval "$(ssh-agent -s)"

3. Copy the key to target system:

   host> ssh-copy-id user@target

   For the Intel Xeon Phi coprocessor: ssh-copy-id mic0

   Alternatively, if you do not have ssh-copy-id on your host system, do the following:

   host> cat ~/.ssh/id_rsa.pub | ssh user@target 'cat >> ~/.ssh/authorized_keys'

   host> ssh user@target 'chmod 600 ~/.ssh/authorized_keys'

   For the Intel Xeon Phi coprocessor:

   host> cat ~/.ssh/id_rsa.pub | ssh mic0 'cat >> ~/.ssh/authorized_keys'

   host> ssh mic0 'chmod 600 ~/.ssh/authorized_keys'

4. Verify that a password is not required anymore, for example:

   host> ssh user@target ls

   For the Intel Xeon Phi coprocessor: ssh mic0 ls

See Also