APC AP9630 User's Guide download pdf (Page 46)

44UPS Network Management Card 2 User’s Guide

• 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 Host Key: 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. To use an externally created host

key, load the host key before you enable SSH (with “Console access” above).

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.

Remove: Delete the host key. See screen text also.

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 available from various

vendors.

SNMP screens

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.)

When using StruxureWare Central to manage a UPS on the public network of an StruxureWare system, you

must have SNMP v1 or SNMP v3 enabled in the

NMC interface. Read access will allow the StruxureWare

device to receive traps from the

NMC, but Write access is required while you use the NMC user interface to set

the StruxureWare device as a trap receiver.

For detailed information on enhancing and managing the security of your system, see the Security

Handbook, available on the Network Management Card Utility CD or from the website,

www.apc.com.

SNMPv1.

Path: Configuration > Network > SNMPv1 > Access and Access control

Use Access to enable or disable SNMP version 1 as a method of communication with the NMC.

Access Control. You can configure up to four access control entries to specify which Network Management

Systems (NMSs) have access to the NMC. To edit, click a community name.

By default one entry is assigned to each of the four available SNMPv1 communities. You can edit these

settings to apply more than one entry to any one community to grant access by several specific IPv4 and IPv6

addresses, host names, or IP address masks.

• By default, a community has access to the NMC from any location on the network.

• If you configure multiple access control entries for any one community name, it means that one or more

of the other communities have no access to the device.

Community Name: The name that an NMS must use to access the community. The maximum length is 15

ASCII characters, and the default names are

public, private, public2, and private2.

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APC AP9630 User's Guide Page 46

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