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




NAME
rndc-confgen - rndc key generation tool
SYNOPSIS
rndc-confgen [-a] [-A algorithm] [-b keysize] [-c keyfile] [-h] [-k keyname] [-p port] [-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-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. -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, 2013-2019 Internet Systems Consortium, Inc. ("ISC") ISC 2013-03-14 RNDC-CONFGEN(8)

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