rndc-confgen






rndc−confgen − rndc key generation tool

rndc−confgen [−a] [−b keysize] [−c keyfile] [−h]
[−k keyname] [−p port] [−r randomfile] [−s address]
[−t chrootdir] [−u user]



     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.



     −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.










                             ‐2‐


     −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.



     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



     rndc(8), rndc.conf(5), named(8), BIND 9 Administrator
Reference Manual.



     Internet Systems Consortium












                             ‐3‐


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