Our school has a complete undergraduate-run computer lab, hence the
credit goes to the sysadmin, although kudos to the student who
found it.
Transcript of session follows:
% nslookup -query=ANY
Default Server: envy.ugcs.caltech.edu
Address: 131.215.134.135
>
> quit
Server: envy.ugcs.caltech.edu
Address: 131.215.134.135
quit.ugcs.caltech.edu canonical name =
use.exit.to.leave.nslookup.-.-.-.ugcs.caltech.edu
> exit
%
[For those who don't know this, nslookup is a program that finds numerical
Internet addresses from more readable names, and the same address
may have different names, but one "canonical" ("official") one. The way
to exit the program is to type exit. However, when the user typed quit,
he was told that the "real name" of quit was "use exit to leave nslookup."]
(From the "Rest" of RHF)