07-23-2018
telnet is interactive. If you don't want interaction, why use it? There's much more appropriate tools.
Answering "why use it" may tell us what you actually need, and by that, an actual solution which may not have been what you expected.
If you absolutely insist on making telnet work interactively you could probably kludge something with expect.
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LEARN ABOUT DEBIAN
fence_drac
fence_drac(8) System Manager's Manual fence_drac(8)
NAME
fence_drac - fencing agent for Dell Remote Access Card
SYNOPSIS
fence_drac [OPTION]...
DESCRIPTION
fence_drac is an I/O Fencing agent which can be used with the Dell Remote Access Card (DRAC). This card provides remote access to control-
ling power to a server. It logs into the DRAC through the telnet interface of the card. By default, the telnet interface is not enabled.
To enable the interface, you will need to use the racadm command in the racser-devel rpm available from Dell. To enable telnet on the
DRAC:
[root]# racadm config -g cfgSerial -o cfgSerialTelnetEnable 1
[root]# racadm racreset
fence_drac accepts options on the command line as well as from stdin. Fenced sends parameters through stdin when it execs the agent.
fence_drac can be run by itself with command line options. This is useful for testing and for turning outlets on or off from scripts.
Vendor URL: http://www.dell.com
OPTIONS
-a IPaddress
IP address or hostname of the switch.
-c cmd_prompt
Force fence_drac to use cmd_prompt as the command prompt
-d dracversion
Force fence_drac to treat the device as though it was for the specified drac version
-D dumpfile
Debug file of the telnet interaction
-h Print out a help message describing available options, then exit.
-l login
Login name.
-m modulename
The module name of the blade when using DRAC/MC firmware.
-o action
The action required. reboot (default), off, on or status.
-p password
Password for login.
-S path
Full path to an executable to generate the password for login.
-f seconds
Wait X seconds before fencing is started
-V Print out a version message, then exit.
STDIN PARAMETERS
action = < param >
The action required. reboot (default), off, on or status.
agent = < param >
This option is used by fence_node(8) and is ignored by fence_apc.
cmd_prompt = < param >
Force fence_drac to use cmd_prompt as the command prompt
drac_version = < param >
Force fence_drac to treat the device as though it was for the specified drac version.
debug = < dumpfile >
Debug file of the telnet interaction
ipaddr = < hostname | ip >
IP address or hostname of the switch.
login = < param >
Login name.
modulename = < param >
The module name of the blade when using DRAC/MC firmware.
passwd = < param >
Password for login.
passwd_script = < param >
Full path to an executable to generate the password for login.
delay = < param >
Wait X seconds before fencing is started
SEE ALSO
fence(8), fence_node(8)
fence_drac(8)