NetWare 4.1/9000 Concepts

1-101
NetWare Glossary
N
See also: “NEMUX”; “NetWare Core Protocol (NCP)”; “NetWare daemon”;
“Lock manager.”
NCP Packet Signature
A NetWare security feature that protects servers and clients using NetWare
Core Protocol (NCP) by preventing packet forgery.
Without NCP Packet Signature, a client could pose as a more privileged
client by sending a forged NCP request to a NetWare server. By forging the
proper NCP request packet, an intruder could gain rights to all network
resources.
NCP Packet Signature prevents packet forgery by requiring the server and
the client to “sign” each NCP packet. The packet signature changes with
every packet. NCP packets with incorrect signatures are discarded without
breaking the client’s connection to the server.
However, an alert message about the invalid packet is sent to the error log
and the server console. The alert message contains the login name and the
station address of the affected client.
If NCP Packet Signature is installed on the server and all of its clients, it is
virtually impossible to forge a valid NCP packet.
NDS
See “NetWare Directory Services (NDS).”
NEMUX
See “NetWare Engine Multiplexor (NEMUX).”
NETBIOS.EXE
NetWare’s NetBIOS emulator program that allows DOS clients to run
applications written for peer-to-peer communication or distributed
processing.
The INT2F.COM file is used with NETBIOS.EXE.