Description:

DNS utility programs: adns also comes with a number of utility
programs for use from the command line and in scripts:
- adnslogres is a much faster version of Apache's logresolv program,
- adnsresfilter is a filter which copies its input to its output,
replacing IP addresses by the corresponding names, without unduly
delaying the output. For example, you can usefully pipe the output of
netstat -n, tcpdump -ln, and the like, into it.
- adnshost is a general-purpose DNS lookup utility which can be used
easily in from the command line and from shell scripts to do simple
lookups. In a more advanced mode it can be used as a general-purpose
DNS helper program for scripting languages which can invoke and
communicate with subprocesses.