RNDC-CONFGEN(8) 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 cor-
responding 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 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 exist-
ing BIND 8 named.conf file.
-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 authoriazation. 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 Software Consortium
BIND9 Aug 27, 2001 RNDC-CONFGEN(8)
