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radns(8)							      radns(8)

NAME
       radns - Resolving DNS Server Client for IPv6.

SYNOPSIS
       radns [ -v [ -v ] [ -v ] ] [ -f path to resolv file ] [ -l maximum num‐
       ber of domain suffixes in search list ] [ -m maximum number of resolver
       addresses ] [ -u user ] [ -s path to script ] [ -p path to pidfile ]

DESCRIPTION
       radns  listens  for  IPv6  Router Advertisements with the Recursive DNS
       Server (RDNSS) option and stores the address(es) in a file in the  same
       syntax  as  resolv.conf(5).  It	optionally  starts  a  script  when it
       receives a Router Advertisement.

OPTIONS
       -V     prints version information and quits the program.

       -v     turns on verbose mode and gives more debug  output.  Also	 stops
	      the  process  from becoming a daemon. Repeated -v increases ver‐
	      bosity.

       -f path to resolv file
	      specifies the filename to write the IPv6 addresses  to.  Default
	      is "./resolv.conf".

       Note  that  the radns user needs write access to the directory since it
       will create a temporary working file and	 rename	 it  to	 whatever  you
       specify	 as   the  resolv  file.  Typically  you  use  something  like
       /etc/radns/ra-resolv.conf as the	 resolv	 file  with  /etc/radns	 being
       writable by the radns user.

       If  radns  is  run on an IPv6-only machine, with no dual-stack, you may
       want  to	 make  /etc/resolv.conf	 a  symbolic  link  to	/etc/radns/ra-
       resolv.conf.

       -l maximum number of domain suffixes in search list specifies
	      the  number of domain suffixes to store after the search keyword
	      in the resolv.conf file. 0 is a special case meaning  an	unlim‐
	      ited number. The default is 6.

       -m maximum number of resolver addresses
	      specifies	 the  number  of  resolver  addresses  to store in the
	      resolv.conf file. 0 is a special case meaning an unlimited  num‐
	      ber. The default is 3.

       -u username
	      specifies the user to drop privileges to. Default is radns.

       -s path to script
	      specifies	 a program to run after receiving new addresses to DNS
	      resolvers. Default is not to run a script.

       -p path to pidfile
	      specifies a path to a file to write  the	process	 ID  into  for
	      process management purposes. Default is "/var/run/radns.pid".

AUTHOR
       Michael Cardell Widerkrantz <mc@hack.org>.

SEE ALSO
       rtadvd(8), radvd(8)

				 May 26, 2011			      radns(8)

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