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 © 2001, 2003-2005, 2007, 2009, 2013-2016 Internet Systems Consortium, Inc.
       ("ISC")