Logging In To Cmc Using Public Key Authentication; Multiple Cmc Sessions - Dell PowerEdge VRTX User Manual

• Firmware RACADM — Allows you to log in to the CMC using Telnet, SSH, or a serial connection. With firmware
RACADM, you can the RACADM implementation that is part of the CMC firmware.
You can use remote RACADM commands in scripts to configure multiple CMCs. You cannot run the scripts directly on
the CMC web interface, because CMC does not support it.
For more information about RACADM, see the
Line Reference Guide .
For more information about configuring multiple CMCs, see

Logging in to CMC Using Public Key Authentication

You can log in to the CMC over SSH without typing a password. You can also send a single RACADM command as a
command line argument to the SSH application. The command line options behave similar to the remote RACADM,
because the session ends after the command is completed.
Before logging in to CMC over SSH, make sure that the public keys are uploaded. To use this feature, you must have an
Enterprise License.
For example:
• Logging in: ssh service@<domain> or ssh service@<IP_address>, where IP_address is the CMC
IP address.
• Sending RACADM commands: ssh service@<domain> racadm getversion and ssh
service@<domain> racadm getsel
When you log in using the service account, if a passphrase was set up when creating the public or private key pair, you
may be prompted to enter that passphrase again. If the passphrase is used with the keys, client systems running
Windows and Linux provide methods to automates the method. On client systems running Windows, you can use the
Pageant application. It runs in the background and makes entering the passphrase transparent. For client systems
running Linux, you can use the ssh agent. For setting up and using either of these applications, see their product
documentation.

Multiple CMC Sessions

A list of multiple CMC sessions that are possible by using the various interfaces is given here.
Table 3. Multiple CMC Sessions
Interface
CMC web interface
RACADM
Telnet
SSH
44
Chassis Management Controller for PowerEdge VRTX RACADM Command
Configuring Multiple CMCs Using
Number of Sessions
4
4
4
4
RACADM.