Command line interface access and security, Telnet and secure shell (ssh), Telnet and – Dell Metered PDU LED User Manual

Page 161: Secure shell (ssh), User’s guide, Mete red rac k pdu

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USER’S GUIDE

Mete

red Rac

k

PDU

158

Command Line Interface Access and Security

Users with Administrator or Device User accounts can access the command line
interface through Telnet or Secure SHell (SSH), depending on which is enabled. (An
Administrator can enable these access methods by selecting the

Administration

tab,

then

Network

on the top menu bar and

access

under the

Console

heading on the left

navigation menu.) By default, Telnet is enabled. Enabling SSH automatically disables
Telnet.

Telnet for basic access.

Telnet provides the basic security of authentication by user

name and password, but not the high-security benefits of encryption.

SSH for high-security access.

If you use the high security of SSL for the Web

interface, use Secure SHell (SSH) for access to the command line interface. SSH
encrypts user names, passwords and transmitted data.

The interface, user accounts, and user access rights are the same whether you access
the command line interface through SSH or Telnet, but to use SSH, you must first
configure SSH and have an SSH client program installed on your computer.

Telnet and Secure SHell (SSH)

While SSH is enabled, you cannot use Telnet to access the command line interface.
Enabling SSH enables SCP automatically.

To configure the options for Telnet and Secure SHell (SSH):

1. On the

Administration

tab of the Web interface, select

Network

on the top

When SSH is enabled and its port is configured, no further configuration is
required to use Secure CoPy (SCP). SCP uses the same configuration as SSH.

To use SSH, you must have an SSH client installed. Most Linux and other
UNIX

®

platforms include an SSH client, but Microsoft

Windows operating

systems do not. SSH clients are available from various vendors.

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