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.
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−a |
This option sets automatic rndc configuration, which creates a file /etc/bind/rndc.key 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.
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−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.
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−q |
This option prevets printing the written path in automatic configuration mode. |
−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
rndc(8), rndc.conf(5), named(8), BIND 9 Administrator Reference Manual.
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