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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 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. - -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 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.
