UPS Network Management Card 2 User’s Guide58
Console

Path:

Path: Administration > Network > Console >

options

A Console session means you’re using the command line interface, see Command Line Interface (CLI).

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. Clients are availabl e from var ious

vendors.

SNMP

All user names, passwords, and community names for SNMP are transferred over the network as plain text. If

your network requires the high security of encryption, disable SNMP access or set the access for each

community to Read. (A community with Read access can receive status information and use SNMP traps.)

Option Description
access
Choose one of the following for access by Telnet or Secure SHell (SSH):
•Disable: Disables all access to the command line interface.
•Enable Telnet (the default): Telnet transmits user names, passwords, and data without
encryption.
•Enable SSH: SSH transmits user names, passwords, and data in encrypted form, providing
protection from attempts to intercept, forge, or alter data during transmission.
Configure the ports to be used by these protocols:
•Telnet Port: The Telnet port used to communicate with the NMC (23 by default). You can
change the port setting to any unused port from 5000 to 32768 for additional security. Users
must then use a colon (:) or a space, as required by your Telnet client program, to specify the
non-default port. For example, for port 5000 and an IP address of 152.214.12.114, your Telnet
client requires one of the these commands:
telnet 152.214.12.114:5000
telnet 152.214.12.114 5000
•SSH Port: The SSH port used to communicate with the NMC (22 by default). You can change
the port setting to any unused port from 5000 to 32768 for additional security. See the
documentation for your SSH client for the command line format required to specify a non-
default port.
ssh host key
Status indicates the status of the host key (private key).
•SSH Disabled: No host key in use.
•Generating: The NMC is creating a host key because no valid host key was found.
•Loading: A host key is being activated on the NMC.
•Valid: One of the following valid host keys is in the /ssh directory (the required location on
the Network Management Card):
•A 1024-bit or 2048-bit host key created by the Security Wizard
•A 2048-bit RSA host key generated by the Network Management Card
Add or Replace: Upload a host key file created by the Security Wizard. To use the Security
Wizard, see the Security Handbook on the Network Management Card Utility CD.
Note: To reduce the time required to enable SSH, create and upload a host key in advance. If
you enable SSH with no host key loaded, the NMC takes up to one minute to create a host key,
and the SSH server is not accessible during that time.