D-Link DFL-2500 - Manual (Page 23)

Chapter 2. Management and Maintenance
This chapter describes the management, operations and maintenance related aspects of
NetDefendOS.
• Managing NetDefendOS, page 23
• Events and Logging, page 35
• RADIUS Accounting, page 39
• Monitoring, page 43
• Maintenance, page 45
2.1. Managing NetDefendOS
2.1.1. Overview
NetDefendOS is designed to give both high performance and high reliability. Not only does it
provide an extensive feature set, it also enables the administrator to be in full control of almost every
detail of the system. This means the product can be deployed in the most challenging environments.
A good understanding on how NetDefendOS configuration is performed is crucial for proper usage
of the system. For this reason, this section provides an in-depth presentation of the configuration
subsystem as well as a description of how to work with the various management interfaces.
Management Interfaces
NetDefendOS provides the following management interfaces:
The WebUI The Web User Interface (WebUI) provides a user-friendly and intuitive graphical
management interface, accessible from a standard web browser.
The CLI The Command Line Interface (CLI), accessible locally via serial console port or
remotely using the Secure Shell (SSH) protocol, provides the most fine-grain
control over all parameters in NetDefendOS.
Note
Microsoft Internet Explorer (version 6 and later), Firefox and Netscape (version 8 and
later) are the recommended web-browsers to use with the WebUI. Other browsers may
also provide full support.
Access to remote management interfaces can be regulated by a remote management policy so the
administrator can restrict management access based on source network, source interface and
credentials. Access to the web interface can be permitted for administrative users on a certain
network, while at the same time allowing CLI access for a remote administrator connecting through
a specific IPsec tunnel.
By default, Web User Interface access is enabled for users on the network connected via the LAN
interface of the firewall (on products where more than one LAN interface is available, LAN1 is the
default).
2.1.2. Default Administrator Accounts
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