Users Guide
15
Security
The Aggregator provides many security features.
This chapter describes several ways to provide access security to the Dell Networking system.
For details about all the commands described in this chapter, refer to the Security chapter in the Dell
PowerEdge Command Line Reference Guide for the M I/O Aggregator .
Supported Modes
Standalone, PMUX, VLT, Stacking
Understanding Banner Settings
This functionality is supported on the Aggregator.
A banner is a note that is displayed when you log in to the system, depending on the privilege level and
the command mode into which the you log in. You can specify different banners to be displayed as the
message-of-the-day (MOTD), as the opening quote in EXEC mode, or as the beginning message in EXEC
Privilege mode. Setting up a banner enables you to display any important information or group-level
notification that needs to be communicated to all the users of the system.
A login banner message is displayed only in EXEC Privilege mode after entering the enable command
followed by the password. These banners are not displayed to users in EXEC mode. When you connect to
a system, the message-of-the-day (MOTD) banner is displayed first, followed by the login banner and
prompts. After you log in to the system with valid authentication credentials, the EXEC banner is shown.
You can use the MOTD banner to alert users of critical upcoming events so that they can plan and
schedule their accessibility to the device. You can modify the banner messages depending on the
requirements or conditions.
Accessing the I/O Aggregator Using the CMC Console
Only
This functionality is supported on the Aggregator.
You can enable the option to access and administer an Aggregator only using the chassis management
controller (CMC) interface, and prevent the usage of the CLI interface of the device to configure and
monitor settings. You can configure the restrict-access session command to disable access of the
Aggregator using a Telnet or SSH session; the device is accessible only using the CMC GUI. You can use
Security
187