Technical data

nslookup
Table A–2 (Cont.) Options to the nslookup set Command
Keyword Function
[no]debug Turns on debugging (default is nodebug ). nslookup displays
detailed information about the packet sent to the server and the
answer. For example:
> set debug
You can use the abbreviations nodeb and deb .
[no]d2 Returns all-inclusive debugging information (default is nod2 ).
Displays all the fields of every packet. For example:
> set d2
recurse Tells the BIND server to contact other servers if it does not have
the information you want. The servers carry out a complete
(recursive) resolution for each query. For example:
> set recurse
retry Number of times that nslookup attempts to contact a BIND
server if repeated tries fail. For example:
> set retry=8
timeout Length of time to wait for a reply from each attempt. For
example:
> set timeout=9
root=value Changes the root server. For example, the following command
changes the root server to ns.nasa.gov .
> set root=ns.nasa.gov
ignoretc Tells nslookup to ignore packet truncation errors. For example:
> set ignoretc
domain name Changes the default domain to the domain you specify.
The settings of the defname and search options control how
the default domain name is appended to lookup requests. The
domain search list contains the parents of the default domain if
the default domain has at least two components in its name.
The default value is set in the TCP/IP configuration database.
To specify the default, type the abbreviation do .
For example, if the default domain is CC.Berkeley.EDU , the
search list is CC.Berkeley.EDU and Berkeley.EDU.
srchlist
If set, nslookup appends each of the domain names specified in
the srchlist option to an unqualified host name and performs
a query until an answer is received.
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Troubleshooting Utilities Reference A–25