rndc-confgen - rndc key generation tool
rndc-confgen [-a] [-A algorithm] [-b
keysize] [-c keyfile] [-h] [-k keyname] [-p
port] [-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
- This option sets automatic rndc configuration, which creates a file
rndc.key in /etc (or a different sysconfdir specified
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.
If a more elaborate configuration than that generated by
rndc-confgen -a is required, for example if rndc is to be used
remotely, run rndc-confgen without the -a option and set
up rndc.conf and named.conf as directed.
- -A algorithm
- This option 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
- This option specifies the size of the authentication key in bits. The size
must be between 1 and 512 bits; the default is the hash size.
- -c keyfile
- This option is used with the -a option to specify an alternate
location for rndc.key.
- -h
- This option prints a short summary of the options and arguments to
rndc-confgen.
- -k keyname
- This option specifies the key name of the rndc authentication key.
This must be a valid domain name. The default is rndc-key.
- -p port
- This option specifies the command channel port where named listens
for connections from rndc. The default is 953.
- -s address
- This option 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
- This option is used with the -a option to specify a directory where
named runs chrooted. An additional copy of the rndc.key is
written relative to this directory, so that it is found by the chrooted
named.
- -u user
- This option is used with the -a option to set the owner of the
generated rndc.key file. 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 the corresponding
controls and key statements to be manually inserted into
named.conf, run:
rndc-confgen
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