host(1) on macOS
The text b2a9ff14d94e, as Mac OS X 10.8.1, Mac OS X 10.8, Mac OS X 10.7.4, Mac OS X 10.7.3, Mac OS X 10.7.2, Mac OS X 10.7.1, Mac OS X 10.7 shipped it.
DNS lookup utility
The text b2a9ff14d94e, as Mac OS X 10.8.1, Mac OS X 10.8, Mac OS X 10.7.4, Mac OS X 10.7.3, Mac OS X 10.7.2, Mac OS X 10.7.1, Mac OS X 10.7 shipped it.
DNS lookup utility