RNDC−CONFGEN

NAME
SYNOPSIS
DESCRIPTION
OPTIONS
EXAMPLES
SEE ALSO
AUTHOR
COPYRIGHT

NAME

rndc−confgen − rndc key generation tool

SYNOPSIS

rndc−confgen [−a] [−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/namedb (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.

−b keysize

Specifies the size of the authentication key in bits. Must be between 1 and 512 bits; the default is 128.

−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 Internet Systems Consortium, Inc. ("ISC")
Copyright © 2001, 2003 Internet Software Consortium.