Novell® eDirectory software for Windows, Solaris, Linux, AIX, and HP-UX is built upon the same core code as eDirectory for NetWare®. In order for eDirectory for Windows and UNIX to properly interact with the other versions of eDirectory, they support a subset of NetWare Core ProtocolTM (NCPTM) services. This is handled by a program called DHost. DHost sits beneath eDirectory and provides functionality on non-NetWare platforms that the NetWare operating system provides naturally.
DHost provides the following NetWare oriented services:
| Service | Description |
|---|---|
NCP Engine |
A packet-based protocol that enables a client to send requests to and receive replies from a NetWare server. For more information, see NetWare Core Protocols. |
Watchdog |
Packets used to make sure workstations are still connected to the NetWare server. For more information, see Watchdog Packet Spoofing. |
Connection Table |
A unique number assigned to any process, print server, application, workstation, or other entity that attaches to a NetWare server. The number can be different each time an attachment is made. Connection numbers are used in implementing network security and for network accounting. They reflect the objects place in the file servers connection table. Additionally, they provide an easy way to identify and obtain information about the objects logged in on the network. |
Event System |
Provides a way for applications to monitor the activity of an individual server. |
Thread Pool |
A sequence of instructions executed as an independent entity and scheduled by system software. |
NCP Extensions |
Allows server application developers to write NLMTM software to be implemented in the NetWare OS as NCPs. For more information, see NCP Extension Concepts. |
Message Digest |
A compressed or condensed form of a document, or an abstract from a document, that functions as a "digital fingerprint" of the larger document. A message digest is used to create a digital signature that is unique to a particular document. |