RNDC-CONFGEN(8)                                               BIND9                                              RNDC-CONFGEN(8)



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 (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 (C) 2004, 2005, 2007, 2009 Internet Systems Consortium, Inc. ("ISC")
       Copyright (C) 2001, 2003 Internet Software Consortium.



BIND9                                                     Aug 27, 2001                                           RNDC-CONFGEN(8)