Configuring a Remote Support Modem
NCR S46 Server MP-RAS Support Guide
2-13
Modem and System Security
The security of the server system is of primary concern when enabling remote
management. Any mechanism that permits a remote support person to enter a
system can permit an unauthorized user to enter as well.
The following security measures are recommended for enabling remote
management:
•
By default, console redirection should be disabled in BIOS Setup and the
System Configuration Utility (SCU), as well as in the operating
environment. The modem should not be initialized for auto-answer mode.
•
The safest mechanism for allowing remote access by expert personnel is
to define call-back passwords to assure the integrity of the remote user.
However, this is not possible in all cases, especially if modem pools are
used by support personnel (like NCR support).
•
If call-back passwords are not possible in your support environment,
remote access should typically be disabled.
Access can be permitted in server down situations by locally enabling
redirection and locally setting a modem for auto-answer.
A person sitting at the machine needing service enables redirection in the
BIOS and/or operating environment and initializes the modem for auto-
answer. Someone should watch what is happening on the local console to
verify the integrity of the caller (to prevent unauthorized access at just the
wrong moment).
•
When setting up a modem for auto-answer, always enable modem
passwords and define call-back or call-through passwords. You can
configure your modem with the Diagnostic Partition or Platform
CD-ROM utilities or with direct modem (AT) commands from your
operating environment. The sections that follow discuss modem
configuration in more detail.
•
It may be impossible to enable the server for redirection locally due to the
location of the hardware or the lack of computer knowledge by local
personnel.
Summary of Contents for S46
Page 1: ...B003 0145 A 6 97 NCR S46 Server MP RAS Support Guide Release 1...
Page 6: ...Contents iv Contents...
Page 10: ...Preface viii Preface...
Page 11: ...NCR S46 Server MP RAS Support Guide 1 1 Chapter 1 Installing MP RAS...
Page 32: ...Restoring MP RAS 1 22 Installing MP RAS...
Page 33: ...NCR S46 Server MP RAS Support Guide 2 1 Chapter 2 MP RAS Remote Support...
Page 88: ...Using the Server Monitor Module for Remote Management 2 56 MP RAS Remote Support...