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Unformatted text preview: Name Resolution How Names Are Mapped to IP Addresses Myself.com Name Resolution
Where is the
myself.com? 192.168.1.200 2
Myself.com What Are Host Names?
A host name is the DNS name, of a device on a network, that is
used to locate computers on the network
Examples: “.” Root
com www.company1.com company1 Host Name DNS Suffix
Host Name DNS Suffix www = 192.168.0.66
Server1 = 192.168.0.67 The Host Name Resolution Process
Cache/Hosts File 1 NetBIOS
Name Cache DNS Salescomputer2
What is the
IP address for
Salescomputer2? 2 WINS Broadcast Lmhost File 192.168.1.35 3
Salescomputer2 Host name resolution is the process of
resolving a host name to an IP address Client Resolver Cache to View and Flush the Client
Resolver Cache The client resolver cache is a location in memory that stores host names
that have recently been resolved to IP addresses. It also stores host nameto-IP address mappings loaded from the Hosts file Computer1 Hosts File Resolved host names
from the DNS server Hosts File
The Hosts file is a static file that is maintained on the local computer and
that is used to load host name-to-IP address mappings into the client
# Copyright (c) 1993-1999 Microsoft Corp. Computer1 Hosts File #
# This is a sample HOSTS file used by Microsoft TCP/IP for Windows.
# This file contains the mappings of IP addresses to host names. Each
# entry should be kept on an individual line. The IP address should
# be placed in the first column followed by the corresponding host name.
# The IP address and the host name should be separated by at least one
# Additionally, comments (such as these) may be inserted on individual
# lines or following the machine name denoted by a '#' symbol.
# For example:
# 126.96.36.199 rhino.acme.com
# source server
# x client host
127.0.0.1 localhost Broadcasts
Local broadcasts are network messages, sent from a single computer,
that are distributed to all other devices on the same segment of the
network as the sending computer 2 Broadcast
is answered Broadcast
Fails 3 Broadcast
Redirector The NetBIOS redirector sends out a local
If the resource is on the local network, the
broadcast is answered and an IP address is
returned 3 If the resource is on a remote network, then the
broadcast will not pass through the router ...
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- Spring '11