dnsutils 1:9.5.1.dfsg.P2-1 (i386 binary) in ubuntu jaunty

 The Berkeley Internet Name Domain (BIND) implements an Internet domain
 name server. BIND is the most widely-used name server software on the
 Internet, and is supported by the Internet Software Consortium, www.isc.org.
 .
 This package delivers various client programs related to DNS that are
 derived from the BIND source tree.
 .
  - dig - query the DNS in various ways
  - nslookup - the older way to do it
  - nsupdate - perform dynamic updates (See RFC2136)