'host' is a small program that comes as part of the BIND distribution.

It is useful for getting hostnames from IPs or vice versa:

# host peak.org
peak.org has address 198.68.22.17
peak.org mail is handled (pri=5) by mail.peak.org

# host 198.68.22.17 
17.22.68.198.IN-ADDR.ARPA domain name pointer PEAK.ORG

I had problems getting this cross-compiled (had to compile each and then lipo it together) so
I thought I would put it on PEAK for when I next upgrade my machine and forget to save it :-)

There is no version number, but it came with BIND 8.1.2

TjL
14 July 1998