User’s guide, Battery management system – APC Battery Management System User Manual

Page 52

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USER’S GUIDE

Battery Management System

45

SSH User Host Key File

Status The

Status

field indicates the status of the host key (private key). In the

control console, you display host key status by selecting

Advanced SSH

Configuration

.

SSH Disabled: No host key in use

: No host key has been transferred

to the Battery Management System, or a host key has been transferred
improperly.

N

OTE

:

A host key must be installed to the

/sec

directory of the Battery

Management System

Generating

: The Battery Management System is generating a host key

because no valid host key was installed in its

/sec

directory.

Loading

: A host key is being loaded (i.e., being activated on the Battery

Management System).

Valid

: The host key is valid. (If you install an invalid host key, the

Battery Management System discards it and generates a valid one.
However, a host key that the Battery Management System generates is
only 768 bits in length. A valid host key created by the APC Security
Wizard is 1024 bits.)

Filename

You can create a host key file with the APC Security Wizard and then
upload it to the Battery Management System by using the Web interface.
Use the

Browse

button for the

Filename

field to locate the file, then click

Apply

.

Alternatively, you can use FTP or Secure CoPy (SCP) to transfer the host
key file to the Battery Management System.

N

OTE

:

Creating and uploading a host key in advance reduces the time

required to enable SSH. If no host key is loaded when you enable SSH,
the Battery Management System creates one when it reboots.

The

Battery Management System takes up to 5 minutes to create this
key, and the SSH server is not accessible during that time.

Option

Description

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