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Command Description
exit, logout, and quit All the commands perform the same action. They
end the current session and return to a login
commond line interface.
Using Telnet Console With CMC
You can have up to four Telnet sessions with CMC at a time.
If your management station is running Microsoft Windows XP or Microsoft Windows Server 2003, you
may experience an issue with the characters in a CMC Telnet session. This issue may occur as a frozen
login where the return key does not respond and the password prompt does not appear.
To fix this issue, download hotfix 824810 from support.microsoft.com. For more information, you can
also see Microsoft Knowledge Base article 824810.
Using SSH With CMC
SSH is a command line session that includes the same capabilities as a Telnet session, but with session
negotiation and encryption to improve security. CMC supports SSH version 2 with password
authentication. SSH is enabled on the CMC by default.
NOTE: CMC does not support SSH version 1.
When an error occurs during the CMC login, the SSH client issues an error message. The message text is
dependent on the client and is not controlled by CMC. Review the RACLog messages to determine the
cause of the failure.
NOTE: OpenSSH must be run from a VT100 or ANSI terminal emulator on Windows. You can also
run
OpenSSH using Putty.exe. Running OpenSSH at the Windows command prompt does not
provide full functionality (that is, some keys do not respond and no graphics are displayed). On
servers that run Linux, run SSH client services to connect to CMC with any shell.
Four simultaneous SSH sessions are supported at a time. The session timeout is controlled by the
cfgSsnMgtSshIdleTimeout property. For more information about the RACADM commands, see the
Chassis Management Controller for PowerEdge VRTX RACADM Command Line Reference Guide
available at dell.com/support/Manuals.
CMC also supports Public Key Authentication (PKA) over SSH. This authentication method improves SSH
scripting automation by removing the need to embed or prompt for user ID/password. For more
information, see Configuring Public Key Authentication over SSH.
SSH is enabled by default. If SSH is disabled, then you can enable it using any other supported interface.
To configure SSH, see Configuring Services.
Supported SSH Cryptography Schemes
To communicate with CMC using SSH protocol, it supports multiple cryptography schemes listed in the
following table.
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