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This diagnostic tool displays information from Domain Name System (DNS) name
servers. Before using this tool, you should be familiar with how DNS works. Nslookup
is available only if the TCP/IP protocol has been installed. Modes Nslookup has two modes: interactive and noninteractive. If you need to look up only a single piece of data, use noninteractive mode.
For the first argument, type the name or IP address of the computer to be
looked up. For the second argument, type the name or IP address of a DNS name
server. If you omit the second argument, the default DNS name server is used. If you need to look up more than one piece of data, you can use interactive
mode. Type a hyphen (-) for the first argument and the name or IP address of a
DNS name server for the second argument. Or, omit both arguments and the
default DNS name server is used. nslookup [-option ...] [computer-to-find | -
[server]] Parameters -option ... Specifies one or more nslookup commands as a command-line option. For
a list of commands, see Nslookup
Subcommands. Each option consists of a hyphen (-) followed immediately by
the command name and, in some cases, an equal sign (=) and then a value. For
example, to change the default query type to host (computer) information and
the initial time-out to 10 seconds, you would type:
The command line length must be less than 256 characters. computer-to-find Looks up information for computer-to-find using the current default
server or using server if specified. If computer-to-find is an IP
address and the query type is A or PTR, the name of the computer
is returned. If computer-to-find is a name and does not have a trailing
period, the default DNS domain name is appended to the name. This behavior
depends on the state of the set options: domains, srchlist,
defname, and search. To look up a computer not in the current DNS domain, append a period to the
name. If you type a hyphen (-) instead of computer-to-find, the command
prompt changes to nslookup interactive mode. server Specifies to use this server as the DNS name server. If you omit server,
the default DNS name server is used. |