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Publisher| WINSConcepts |
NetBIOS name resolution for downlevel Windows clients. In a mixed
environment in which you still have some NT servers or workstations,
you may need to implement WINS on one or more servers in your
network. WINS enables downlevel (Pre-Windows 2000) computers to
resolve NetBIOS names into IP addresses without the
need to
use broadcasts. In addition, some legacy/downlevel applications may
rely on NETBIOS and may still require WINS even if legacy or
downlevel systems no longer exist on the network.
How WINS Works
WINS centralizes the registration of computer and domain NetBIOS
names into a central WINS database on one or more WINS servers on
your network. When NetBIOS computers start up, they register their
name and IP address with the WINS servers. NetBIOS clients can then
contact the WINS servers to resolve the registered
computer's NetBIOS name into its IP address to
establish network communications with it.
WINS Requirements
To implement WINS on your network, you need to meet the following
requirements:
- WINS server requirements
A server with a static IP address and with the WINS service
installed. A single WINS server can support up to about 5,000 WINS
clients. Networks that require WINS should have at least two WINS
servers for fault tolerance in case one becomes unavailable. WINS
database replication can be configured to allow WINS servers to share
a common WINS database.- WINS client requirements
All Microsoft Windows versions can function as WINS clients. The
client must be configured with the IP address of at least one WINS
server on the network.
Note that when WINS is installed on WS2003, the WINS console in
Administrative Tools can be used to manage only WS2003 or W2K WINS
serversit can't be used to manage downlevel
NT WINS servers.
WINS Terminology
- Static mapping
A NetBIOS name-to-IP-address mapping that is manually created in
the WINS database of a WINS server. Static mappings can be configured
for servers that don't support WINS to allow WINS
clients to resolve their names and access them.- WINS proxy
A proxy that listens to
broadcasts
from non-WINS clients, forwards them to a WINS server for name
resolution, then broadcasts the result to the clients.- Pull partner
A WINS server that is configured to request WINS database
updates from its replication partner at specific intervals. Pull
partners are often configured over slow WAN links.- Push partner
A WINS server that is configured to notify its replication
partners when it has accumulated the threshold number of WINS
database updates it wants to pass on to its partners. Push partners
are generally configured when fast LAN links connect WINS servers.- Push/pull partner
A WINS server that is configured as both a push and a
pull partner.
