fdnsname(1) [debian man page]

fdnsname(1)						      General Commands Manual						       fdnsname(1)

NAME

       fdnsname - resolve an IPv4 or IPv6 address to a hostname

SYNOPSIS

       fdnsname <IP address>

DESCRIPTION

       fdnsname  will  attempt	to  look up a single hostname for IP address (which is an IPv4 address in dotted-quad format or an IPv6 address in
       colon-seperated format).  If one is found, it is printed to standard output and the program exits with return code 0.  If not,  nothing	is
       printed and the program exits with return code 1.

AUTHOR

       Ian Gulliver <ian@penguinhosting.net>

SEE ALSO

       libfiredns(3)

								    2004-02-13							       fdnsname(1)

ADDR2NAME(1)							   User's Manual						      ADDR2NAME(1)

NAME

       addr2name, name2addr - perform DNS lookups from scripts

SYNOPSIS

       addr2name [-46cmnr] [HOSTNAMES]

       name2addr [-46cn] [HOSTNAMES]

DESCRIPTON

       Write  addresses  or canonical hostname of specified names to the standard output. If no names are specified via the command line, they are
       read from the standard input.

OPTIONS

       -4 or --ipv4
	      Only try to perform IPv4 lookups.

       -6 or --ipv6
	      Only try to perform IPv6 lookups.

       -c or --config
	      Only lookup and print results for address families that match locally configured addresses (If the system  has  no  IPv4	resp  IPv6
	      address, then IPv4 resp IPv6 addresses are ignored).

       -h or --help
	      Display some help and exit.

       -m or --multiple
	      Normally,  if  a	name  yields  multiple	results, only the first one is printed.  With this optional parameter, all results will be
	      printed on a single line, separated by spaces.

       -n or --numeric
	      Prevent forward hostname lookup.	This ensures that the input names are numeric addresses, which do not need to be looked up.  Typi-
	      cally used along with the --reverse option to convert numerical addresses to canonical hostnames.

       -r or --reverse
	      Perform a reverse DNS lookup (enabled implicitly with addr2name).  addr2name prints numerical resolved addresses by default instead.

       --version
	      Display program version and license and exit.

SEE ALSO

       host(1), getaddrinfo(3), getnameinfo(3), resolv.conf(5)

AUTHOR

       Remi Denis-Courmont <remi at remlab dot net>

       $Id: addr2name.1 658 2010-10-31 20:56:30Z remi $

       http://www.remlab.net/ndisc6/

addr2name				      $Date: 2010-10-31 22:56:30 +0200 (dim. 31 oct. 2010) $				      ADDR2NAME(1)