NSLOOKUP
Usage:
nslookup [-opt ...] # interactive mode using default server
nslookup [-opt ...] - server # interactive mode using 'server'
nslookup [-opt ...] host # just look up 'host' using default server
nslookup [-opt ...] host server # just look up 'host' using 'server'
Commands:
(identifiers are shown in uppercase, [ ] means optional)
| HOST | print info about the host/domain HOST using default server |
| HOST SERVER | as above, but use SERVER as server |
| help or ? | print info on common commands |
| set OPTION | set an option (see below) |
Option List
| 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 | |
| server lNAME | set default server to NAME, using initial server | |
| 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 | |
Examples
nslookup dosprompt.info
nslookup -type=A dosprompt.info
nslookup -type=MX microsoft.com
nslookup -type=mx -debug microsoft.com
nslookup -type=mx -debug microsoft.com 8.8.8.8
Associated Commands