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     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.

       -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.

       -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.

EXAMPLES

       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

SEE ALSO

       rndc(8), rndc.conf(5), named(8), BIND 9 Administrator Reference Manual.

AUTHOR

       Internet Systems Consortium

COPYRIGHT

       2023, Internet Systems Consortium