Looking Up Different Data Types

By default, nslookup looks up the address for a name or the name for an address. You can look up any data type by changing the querytype, as we show in this example:

C:\> nslookup 
Default Server:  terminator.movie.edu 
Address:  192.249.249.3 

> misery         
               Look up address. 
Server:  terminator.movie.edu 
Address:  192.249.249.3 

Name:    misery.movie.edu 
Address:  192.253.253.2 

> 192.253.253.2    
               Look up name. 
Server:  terminator.movie.edu 
Address:  192.249.249.3 

Name:    misery.movie.edu 
Address:  192.253.253.2 

> set type=mx        
               Look up MX data. 
> wormhole 
Server:  terminator.movie.edu 
Address:  192.249.249.3 
wormhole.movie.edu      MX preference = 10, mail exchanger = wormhole.movie.edu 
wormhole.movie.edu      internet address = 192.249.249.1 
wormhole.movie.edu      internet address = 192.253.253.1 

> set q=any        
               Look up data of any type. 
> diehard 
Server:  terminator.movie.edu 
Address:  192.249.249.3 

diehard.movie.edu       internet address = 192.249.249.4 
diehard.movie.edu       MX preference = 10, mail exchanger = diehard.movie.edu 
diehard.movie.edu       internet address = 192.249.249.4

These are only a few of the valid DNS data types, of course. For a more complete list, see Appendix A.

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