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.keyin/etc(or whateversysconfdirwas specified as when BIND was built) that is read by both rndc and named on startup. Therndc.keyfile 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.conffile.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.confandnamed.confas 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.
- -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/randomor equivalent device, the default source of randomness is keyboard input.randomdevspecifies the name of a character device or file containing random data to be used instead of the default. The special valuekeyboardindicates 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.keywill 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.keyfile generated. If -t is also specified only the file in the chroot area has its owner changed.