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UPS Network Management Card 2 User’s Guide8
Command Line Interface
How To Log On
Overview
You can use either a local (serial) connection, or a remote (Telnet or SSH) connection with a computer
on the same network as the Management Card 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 4.
Remote access to the command line interface
You can access the command line interface through Telnet or SSH. Telnet is enabled by default. Enabling
SSH disables Telnet.
To enable or disable these access methods, use 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.
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 Management Card is installed, at a
command prompt, type
telnet and the IP address for the Management Card (for example,
telnet 139.225.6.133, when the Management Card uses the default Telnet port of 23), and
press
ENTER.
If the Management Card 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 don’t 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.