rndc-confgen(8)
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.
-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
COPYRIGHT
Copyright 2004, 2005, 2007, 2009, 2013, 2014 Internet Systems
Consortium, Inc. ("ISC")
Copyright 2001, 2003 Internet Software Consortium.
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