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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
number 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
verbosity.
-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
unlimited 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
number. 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)