Microsoft DOS nslookup command
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About nslookup
Availability
Syntax
Examples
About nslookup
MS-DOS utility that enables a user to look up an IP address of a domain or host on a network.
Users who are using earlier versions of Microsoft Windows 95, Windows 98, or Windows ME and need the options available with the nslookup command will need to download an alternative, third-party program.
Availability
The nslookup.exe command is an external command that is available in the below Microsoft operating systems.
Windows NT
Windows 2000
Windows XP
Windows 7
Syntax
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,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 type (e.g. A,CNAME,MX,NS,PTR etc.) |
|
| view FILE |
sort an 'ls' output file and view it with pg |
| exit |
exit the program |
Examples
This command is often used to perform a reverse lookup on an IP address as shown in the below example. The first section specifies the server and address of that server that provided you with the domain name and IP address displayed in the second section.
nslookup 204.228.152.4
Server: ns1.shinetutorial.com
Address: 1.1.1.1
Name: www.shinetutorial.com
Address: 204.228.152.4
nslookup
Running nslookup without specifying an IP address or domain name will display your routers server and address. To get out of the > prompt type exit and press enter. |
