1RNDC-CONFGEN(8)                     BIND 9                     RNDC-CONFGEN(8)
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NAME

6       rndc-confgen - rndc key generation tool
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SYNOPSIS

9       rndc-confgen  [-a]  [-A  algorithm]  [-b keysize] [-c keyfile] [-h] [-k
10       keyname] [-p port] [-s address] [-t chrootdir] [-u user]
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DESCRIPTION

13       rndc-confgen generates configuration files for rndc. It can be used  as
14       a  convenient  alternative to writing the rndc.conf file and the corre‐
15       sponding controls and key statements in named.conf  by  hand.  Alterna‐
16       tively,  it can be run with the -a option to set up a rndc.key file and
17       avoid the need for a rndc.conf file  and  a  controls  statement  alto‐
18       gether.
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OPTIONS

21       -a     This  option  sets automatic rndc configuration, which creates a
22              file rndc.key in /etc (or a different sysconfdir specified  when
23              BIND  was built) that is read by both rndc and named on startup.
24              The rndc.key file defines a default command channel and  authen‐
25              tication  key allowing rndc to communicate with named on the lo‐
26              cal host with no further configuration.
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28              If  a  more  elaborate  configuration  than  that  generated  by
29              rndc-confgen  -a  is required, for example if rndc is to be used
30              remotely, run rndc-confgen without the  -a  option  and  set  up
31              rndc.conf and named.conf as directed.
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33       -A algorithm
34              This  option  specifies  the  algorithm to use for the TSIG key.
35              Available  choices  are:   hmac-md5,   hmac-sha1,   hmac-sha224,
36              hmac-sha256,   hmac-sha384,  and  hmac-sha512.  The  default  is
37              hmac-sha256.
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39       -b keysize
40              This option specifies the size  of  the  authentication  key  in
41              bits.  The  size  must be between 1 and 512 bits; the default is
42              the hash size.
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44       -c keyfile
45              This option is used with the -a option to specify  an  alternate
46              location for rndc.key.
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48       -h     This  option prints a short summary of the options and arguments
49              to rndc-confgen.
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51       -k keyname
52              This option specifies the key name of  the  rndc  authentication
53              key. This must be a valid domain name. The default is rndc-key.
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55       -p port
56              This  option specifies the command channel port where named lis‐
57              tens for connections from rndc. The default is 953.
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59       -s address
60              This option specifies the IP address  where  named  listens  for
61              command-channel  connections from rndc. The default is the loop‐
62              back address 127.0.0.1.
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64       -t chrootdir
65              This option is used with the -a option to  specify  a  directory
66              where named runs chrooted. An additional copy of the rndc.key is
67              written relative to this directory, so that it is found  by  the
68              chrooted named.
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70       -u user
71              This  option  is used with the -a option to set the owner of the
72              generated rndc.key file.  If -t is also specified, only the file
73              in the chroot area has its owner changed.
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EXAMPLES

76       To allow rndc to be used with no manual configuration, run:
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78       rndc-confgen -a
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80       To print a sample rndc.conf file and the corresponding controls and key
81       statements to be manually inserted into named.conf, run:
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83       rndc-confgen
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SEE ALSO

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

89       Internet Systems Consortium
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92       2021, Internet Systems Consortium
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979.16.16-RH                                                     RNDC-CONFGEN(8)
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