NAME
rndc-confgen - rndc key generation tool
SYNOPSIS
rndc-confgen
[ -a] [-A algorithm]
[-b keysize] [-c keyfile]
[ -h] [-k keyname]
[-p port] [ -r randomfile]
[ -s address]
[-t chrootdir] [
-u user]
DESCRIPTION
rndc-confgen generates configuration files for
rndc. It can be
used as a convenient alternative to writing the rndc.conf file and the
corresponding
controls and
key statements in named.conf by hand.
Alternatively, it can be run with the
-a option to set up a rndc.key
file and avoid the need for a rndc.conf file and a
controls statement
altogether.
OPTIONS
-a
Do automatic
rndc configuration. This
creates a file rndc.key in /etc (or whatever
sysconfdir was specified
as when BIND was built) that is read by both
rndc and
named on
startup. The rndc.key file defines a default command channel and
authentication key allowing
rndc to communicate with
named on
the local host with no further configuration.
Running
rndc-confgen -a allows BIND 9 and
rndc to be used as
drop-in replacements for BIND 8 and
ndc, with no changes to the
existing BIND 8 named.conf file.
If a more elaborate configuration than that generated by
rndc-confgen -a
is required, for example if rndc is to be used remotely, you should run
rndc-confgen without the
-a option and set up a rndc.conf and
named.conf as directed.
-A
algorithm
Specifies the algorithm to use for the TSIG
key. Available choices are: hmac-md5, hmac-sha1, hmac-sha224, hmac-sha256,
hmac-sha384 and hmac-sha512. The default is hmac-md5 or if MD5 was disabled
hmac-sha256.
-b
keysize
Specifies the size of the authentication key
in bits. Must be between 1 and 512 bits; the default is the hash size.
-c
keyfile
Used with the -a option to specify an
alternate location for rndc.key.
-h
Prints a short summary of the options and
arguments to rndc-confgen.
-k
keyname
Specifies the key name of the rndc
authentication key. This must be a valid domain name. The default is
rndc-key.
-p
port
Specifies the command channel port where
named listens for connections from rndc. The default is
953.
-r
randomfile
Specifies a source of random data for
generating the authorization. If the operating system does not provide a
/dev/random or equivalent device, the default source of randomness is keyboard
input. randomdev specifies the name of a character device or file containing
random data to be used instead of the default. The special value keyboard
indicates that keyboard input should be used.
-s
address
Specifies the IP address where named
listens for command channel connections from rndc. The default is the
loopback address 127.0.0.1.
-t
chrootdir
Used with the -a option to specify a
directory where named will run chrooted. An additional copy of the
rndc.key will be written relative to this directory so that it will be found
by the chrooted named.
-u
user
Used with the -a option to set the
owner of the rndc.key file generated. If -t is also specified only the
file in the chroot area has its owner changed.
EXAMPLES
To allow
rndc to be used with no manual configuration, run
rndc-confgen -a
To print a sample rndc.conf file and corresponding
controls and
key statements to be manually inserted into named.conf, run
rndc-confgen
SEE ALSO
rndc(8),
rndc.conf(5),
named(8), BIND 9 Administrator
Reference Manual.
AUTHOR
Internet Systems Consortium, Inc.
COPYRIGHT
Copyright © 2004, 2005, 2007, 2009, 2013-2016 Internet Systems Consortium,
Inc. ("ISC")
Copyright © 2001, 2003 Internet Software Consortium.