APC Network Management Card AP9617 Guía de usuario descargar pdf (Pagina 157)

®®

USER’S GUIDE

network management card

150

Encryption

Secure SHell (SSH) and Secure CoPy (SCP)

The Secure SHell (SSH) protocol provides a secure mechanism to access

computer consoles or shells remotely. The protocol authenticates the server

(in this case, the Network Management Card) and encrypts all

transmissions between the SSH client and the server.

• SSH is an alternative to Telnet, which does not provide encryption.

• SSH protects the username and password, the credentials for

authentication, from being used by anyone intercepting network traffic.

• To authenticate the SSH server (the Network Management Card) to the

SSH client, SSH uses a host key that is unique to the SSH server and

that provides an identification that cannot be falsified. Therefore, an

invalid server on the network cannot obtain a user name and password

from a user by presenting itself as a valid server.

• The Network Management Card supports versions 1 and 2 of SSH.

The encryption mechanisms of the versions differ, and each version

has advantages. Version 1 provides faster login to the Management

Card, and version 2 provides improved protection from attempts to

intercept, forge or change data that are transmitted.

• When you enable SSH, Telnet is automatically disabled.

• The interface, user accounts, and user access rights are the same

whether you access the control console through SSH or Telnet.

Sin comentarios

APC Network Management Card AP9617 Guía de usuario Pagina 157