3com DUA1550-0AAA02 Manuale Utente

C

HAPTER

 1: I

NTRODUCTION

priority rule associated with the user, the EFW Policy from that rule is 
then associated with the user, all other associations are removed.

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if a rule priority or group is changed, the correct associations have to 
be re-established. Clicking on the Recalculate EFW membership 
button will cause 3Com Network Access Manager to find all users that 
are members of that rule or group, and then finding the authorization 
rules applied for each. In a large network this can take a considerable 
time.

Data from 3Com Network Access Manager is stored in Active Directory, 
via an LDAP interface. Your normal methods for backing up/restoring of 
data from Active Directory will also cover 3Com Network Access Manager 
data. No special backup/restore is required for 3Com Network Access 
Manager data.

This section provides descriptions of concepts and terminology that you 
will need to be familiar with in order to use 3Com Network Access 
Manager.

Active Directory is the distributed directory service included with 
Microsoft Windows Server 2003 and Microsoft Windows 2000 Server 
operating systems. Active Directory enables centralized, secure 
management of an entire network, which might span a building, a city, or 
multiple locations throughout the world. Active Directory stores 
information about objects on the computer network and makes this 
information easy for administrators and users to find and apply. With 
Active Directory, users can access resources anywhere in the network with 
a single logon, and administrators have a single point of administration 
for all objects in the network. When interfaced to IAS, Active Directory 
provides secure single login for users, and administrators.

Users, groups and computers are standard Active Directory objects, 
membership of a group is managed using normal Active Directory 
management tools. 

IAS is Microsoft’s implementation of a RADIUS server, providing 
authentication and authorization of users. IAS is included with Microsoft 
Windows Server 2003 and Microsoft Windows 2000 Server operating