User's Manual

Configuring CMC to Use Command Line Consoles 59
tty4
tty5
tty6
tty7
tty8
tty9
tty10
tty11
ttyS1
Connecting to Servers or I/O Modules With the
Connect Command
The CMC can establish a connection to redirect the serial console of server or
I/O modules. For servers, serial console redirection can be accomplished in
several ways:
• using the CMC command line and the connect , or racadm connect
command
• using the iDRAC Web interface serial console redirection feature
• using the iDRAC Serial Over LAN (SOL) functionality.
While in a serial/Telnet/SSH console, the CMC supports the connect
command to establish a serial connection to server or IOM modules. The
server serial console contains both the BIOS boot and setup screens, as well as
the operating system serial console. For I/O modules, the switch serial console
is available.
CAUTION: When executed from the CMC serial console, the connect -b option
stays connected until the CMC resets. This connection is a potential security risk.
NOTE: The connect command provides the –b (binary) option. The –b option
passes raw binary data, and cfgSerialConsoleQuitKey is not used. Additionally,
when connecting to a server using the CMC serial console, transitions in the DTR
signal (for example, if the serial cable is removed to connect a debugger) do not
cause a logout.
NOTE: If an IOM does not support console redirection, the connect command will
display an empty console. In that case, to return to the CMC console, type the
Escape sequence. The default console escape sequence is <Ctrl>\.