Concise Guide to DNS and BIND, The

nslookup

nslookup is Dig's older cousin, and in fact, Dig shares a lot of source code with nslookup. The general command-line syntax is as follows:

nslookup [-option ...] [host-to-find | -[server]]

nslookup has two main modes of operation, interactive and command line:

$ nslookup -query=any www.penguin.bv
Server:  localhost
Address:  127.0.0.1

www.penguin.bv  CPU = PC        OS = Tunes
www.penguin.bv  preference = 10, mail exchanger = mail.penguin.bv
www.penguin.bv  preference = 20, mail exchanger = mail.herring.bv
www.penguin.bv  internet address = 192.168.55.3
penguin.bv      nameserver = ns.penguin.bv
penguin.bv      nameserver = ns.herring.bv
mail.penguin.bv internet address = 192.168.55.2
ns.penguin.bv   internet address = 192.168.55.2

The interactive mode is ...