How do you distinguish a DNS problem from a network problem?
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Answer Posted / anil
Microsoft Windows [Version 6.0.6001]
Copyright (c) 2006 Microsoft Corporation. All rights
reserved.
C:\Users\IT-Helpdesk>nslookup
> ?
Commands: (identifiers are shown in uppercase, [] means
optional)
NAME - print info about the host/domain NAME
using default server
NAME1 NAME2 - as above, but use NAME2 as server
help or ? - print info on common commands
set OPTION - set an option
all - print options, current server and
host
[no]debug - print debugging information
[no]d2 - print exhaustive debugging
information
[no]defname - append domain name to each query
[no]recurse - ask for recursive answer to query
[no]search - use domain search list
[no]vc - always use a virtual circuit
domain=NAME - set default domain name to NAME
srchlist=N1[/N2/.../N6] - set domain to N1 and search
list to N1,N2, etc.
root=NAME - set root server to NAME
retry=X - set number of retries to X
timeout=X - set initial time-out interval to
X seconds
type=X - set query type (ex.
A,AAAA,A+AAAA,ANY,CNAME,MX,NS,PTR,
SOA,SRV)
querytype=X - same as type
class=X - set query class (ex. IN
(Internet), ANY)
[no]msxfr - use MS fast zone transfer
ixfrver=X - current version to use in IXFR
transfer request
server NAME - set default server to NAME, using current
default server
lserver NAME - set default server to NAME, using initial
server
finger [USER] - finger the optional NAME at the current
default host
root - set current default server to the root
ls [opt] DOMAIN [> FILE] - list addresses in DOMAIN
(optional: output to FILE)
-a - list canonical names and aliases
-d - list all records
-t TYPE - list records of the given RFC record
type (ex. A,CNAME,MX,NS,
PTR etc.)
view FILE - sort an 'ls' output file and view it
with pg
exit - exit the program
>
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