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Using Telnet Console With CMC
You can have up to four Telnet sessions with CMC at a time.
If your management station is running Windows XP or Windows 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 the Microsoft Support website at support.microsoft.com. See Microsoft
Knowledge Base article 824810 for more information.
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. The CMC supports SSH version 2 with password authentication. SSH is enabled on the
CMC by default.
NOTE: The 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 the 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). For 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, see the database property chapter of the
RACADM
Command Line Reference Guide for iDRAC7 and CMC
, the Services Management page in the Web interface, or see
Configuring Services
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
Configure 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
.
Related Links
Configuring Services
Supported SSH Cryptography Schemes
To communicate with CMC using SSH protocol, it supports multiple cryptography schemes listed in the following table.
Table 27. : Cryptography Schemes
Scheme Type
Scheme
Asymmetric Cryptography
Diffie-Hellman DSA/DSS 512–1024 (random) bits per NIST
specification
Symmetric Cryptography
•
AES256-CBC
•
RIJNDAEL256-CBC
•
AES192-CBC
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