| 30 | | Starting from r1255, PALM allows full remote access of the Berlin complex of HLRN-III. Since the batch compute nodes do not allow to use ssh/scp (which is required by '''mrun''' for carrying out several crucial tasks, e.g. for automatic submission of restart runs), the ssh/scp commands are executed on one of the login nodes (blogin1) as a workaround. Therefore, blogin1 must be a known host for ssh/scp. This requires the user to carry out the following three steps just once: |
| 31 | | |
| 32 | | 1. Login on blogin and create a pair of private/public ssh-keys (replace <hlrn-username> by your HLRN-username): |
| 33 | | {{{ |
| 34 | | ssh <hlrn-username>@blogin1.hlrn.de |
| 35 | | ssh-keygen -t dsa |
| 36 | | }}} |
| 37 | | Enter <return> for any query, until the shell-prompt appears again. |
| 38 | | |
| 39 | | 2. On blogin, define the public key as one of the authorized keys to access the system: |
| 40 | | {{{ |
| 41 | | cat id_dsa.pub >> authorized_keys |
| 42 | | }}} |
| 43 | | 3. Still logged in on blogin, login on blogin1: |
| 44 | | {{{ |
| 45 | | ssh <hlrn-username>@blogin1 |
| 46 | | }}} |
| 47 | | After the third step, the message |
| 48 | | {{{ |
| 49 | | Warning: Permanently added 'blogin1,130.73.233.1' (RSA) to the list of known hosts. |
| 50 | | }}} |
| 51 | | should appear on the terminal. |
| 52 | | \\ |
| | 31 | For a general instruction to establish passwordless SSH login between two hosts, please click [[wiki:doc/install/passwordless|here]]. |
