Novell Directory Services

1
Novell Directory Services

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• Don Mendonsa
• CS 775

2
NDS

• A Service for Users
• Authentication
• Service Location
• Desktop Integration
• A Service for Administrators
• Object Management
• Resource Management
• NDS Management

3
NetWare Administrator
4
NDS Manager
5
Related Standards

• X.500

• Service Locator Protocol (SLP)

• Light-weight Data Access Protocol (LDAP)

• Network Time Protocol (NTP)

6
X.500

• Directory Service
• Attribute-based name service
• Distinguished names
• Pure Names

7
SLP

• Scalable framework
• Discovery Selection of Services
• User Agents
• Service Agents (Multicast)
• Directory Agents (Unicast)

8
LDAP

• Minimize Client Complexity
• Referrals returned to Clients
• Maps to Strict Subset of X.500
• Bypasses X.500 DAP s/p overhead
• Data elements encoded as strings
• Attributes Names follow ISO 10646
• Extensible to new operations

9
NTP

• Internet Time Synchronization (to UTC)
• Allows frequent client resynchroniztion
• Provides for reliable service
• Protects against interference

10
Distributed System Features in NDS

• Pure Names
• Partitioning
• Replication
• Scalability
• The Billion Object Tree

11
Sources and References

• White Pages from Novell
• RFCs from Internic
• Text Book - X.500
• Article from Byte
• Two Articles from NetWare Connection
• See Links for above at
• Http//chesweb1.tc.cc.va.us/usr/tcmendd/cs775