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Man Pages


Manual Reference Pages  -  NAME2ADDR (1)

NAME

addr2name, name2addr - perform DNS lookups from scripts

CONTENTS

Synopsis
Descripton
Options
Author

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. Typically 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

R[char233]mi Denis-Courmont <remi at remlab dot net>

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

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

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

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