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WINS
The other prominent name service,
WINS (Windows Internet Name Service) is a modified
Microsoft Access database. Its job is to map NetBIOS
names to IP addresses when in a NT environment. Generally
self tuning and repairing after installation,
in an NT only server network, it grants NetBIOS names
to be used when TCP/IP is the transport, without the need
for HOST or LMHOST files. When a request is made by MS
NetBIOS device name, WINS returns the IP address
for the device.
WINS is tightly tied to DHCP in
NT4. (DHCP is the service which automatically assigns network
addresses to a computer when it boots. We’ll discuss it later
in the chapter.) When activated on a Windows based network that is
using DHCP to assign IP addresses, the WINS database is updated by
DHCP when each address is assigned. Prior to Windows 2000,
this was a major advantage for WINS over DNS, because
earlier versions of DNS could not update themselves
“on the fly” as host addresses were assigned.
Not until Windows 2000’s DDNS
(Dynamic DNS) did DNS catch up with this ability that WINS
has had for years.
 DHCP & WINS
For the NETWORK+ test, the basics of DHCP and WINS are required. Advanced topics such as DHCP Relay Agent and WINS Proxy are visited on the MS TCP/IP test.
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CertiGuide for Network+ (http://www.CertiGuide.com/netplus/) on CertiGuide.com
Version 1.0 - Version Date: November 7, 2004
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