Users Guide

Configuring the DRAC 4 to Use a Serial or Telnet Text Console 57

Using the Secure Shell (SSH)

Secure Shell (SSH) is a command line session that includes the same

capabilities as a telnet session, but with higher security. The DRAC 4 supports

SSH version 2 with password authentication. SSH is enabled on the DRAC 4

when you install or update your DRAC 4 firmware.

NOTE: SSH is not available for the first fifteen minutes of operation after

installing/updating the DRAC 4 firmware. During this time the host keys are

generated internally. No intervention is required for host key generation. If this

operation is interrupted for any reason, key generation will start again when the

DRAC 4 is restarted.

You can use either PuTTY or OpenSSH on the management station to

connect to the managed system’s DRAC 4.

NOTE: Run OpenSSH from a VT100 or ANSI terminal emulator on Windows. Running

OpenSSH at the Windows command prompt does not result in full functionality (for

example, some keys do not respond and no graphics are displayed).

Only one SSH session is supported at any given time. The session timeout is

controlled with the cfgSsnMgtSshTelnetIdelTimeout object as

described in the "DRAC 4 Property Database Group and Object Definitions."

Enabling SSH

You can enable the SSH on the DRAC 4 with the following command:

racadm config -g cfgSerial -o cfgSerialSshEnable 1

Changing the SSH Port

You can change the SSH port with the following command:

racadm config -g cfgRacTuning -o cfgRacTuneSshPort

For more information on cfgSerialSshEnable and

cfgRacTuneSshPort objects, see "DRAC 4 Property Database Group and

Object Definitions."