User guide

5User Guide InfraStruxure 150kVA Power Distribution Unit

Command Console

Overview

Use either a local (serial) connection, or a remote (Telnet or SSH) connection with a computer on the

same network as the PDU to access the command line interface.

Use case-sensitive user name and password entries to log on (by default, apc and apc for an

Administrator, or device and apc for a Device User). A Read-Only User cannot access the command line

interface. If you cannot remember your user name or password, see “How to Recover from a Lost

Password” on page 3.

Remote access to the command line interface

Access the command line interface through Telnet or Secure SHel (SSH). Telnet is enabled by default.

Enabling SSH disables Telnet.

To enable or disable these access methods:

• In the Web interface. On the Administration tab, select Network on the top menu bar, and then

the access option under Console on the left navigation menu.

• In the command line interface, use the Telnet/SSH option of the Network menu.

Telnet for basic access. Telnet provides the basic security of authentication by user name and

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

To use Telnet to access the command line interface:

1. From a computer that has access to network on which the PDU is installed, at a command

prompt, type

telnet and the IP address for the PDU (for example, telnet 139.225.6.133,

when the PDU uses the default Telnet port of 23), and press

ENTER.

If the PDU uses a non-default port number (from 5000 to 32768), you must include a colon or

a space, depending on your Telnet client, between the IP address (or DNS name) and the port

number. (These are commands for general usage: some clients do not allow you to specify the

port as an argument and some types of Linux might want extra commands).

2. Enter the user name and password (by default, apc and apc for an Administrator, or device and

apc for a Device User).

SSH for high-security access. If you use the high security of SSL for the Web interface, use 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.