Switch to SpeakEasy.net DSL

The Modular Manual Browser

Home Page
Manual: (SunOS-5.10)
Apropos / Subsearch:
optional field

rndc.conf(4)                     File Formats                     rndc.conf(4)

       rndc.conf - rndc configuration file


       rndc.conf  is  the  configuration file for rndc, the BIND 9 name server
       control utility. This file  has  a  similar  structure  and  syntax  to
       named.conf(4).  Statements are enclosed in braces and terminated with a
       semi-colon. Clauses in the statements are also  semi-colon  terminated.
       The usual comment styles are supported:

       C style         /* */

       C++ style       // to end of line

       Unix style      # to end of line

       rndc.conf  is  much simpler than named.conf. The file uses three state-
       ments: an options statement, a server statement and a key statement.

       The options statement contains three clauses. The default-server clause
       is  followed by the name or address of a name server. This host is used
       when no name server is provided as an argument to rndc. The default-key
       clause  is  followed  by the name of a key which is identified by a key
       statement. If no keyid is provided on the rndc command line, and no key
       clause  is  found in a matching server statement, this default key will
       be used to  authenticate  the  server's  commands  and  responses.  The
       default-port clause is followed by the port to connect to on the remote
       name server. If no port option is provided on the  rndc  command  line,
       and  no  port  clause  is  found  in  a matching server statement, this
       default port will be used to connect.

       After the server keyword, the server statement includes a string  which
       is  the  hostname  or  address for a name server. The statement has two
       possible clauses: key and port. The key name must match the name  of  a
       key  statement  in the file. The port number specifies the port to con-
       nect to.

       The key statement begins with an identifying string, the  name  of  the
       key. The statement has two clauses. algorithm identifies the encryption
       algorithm for rndc to use; currently only HMAC-MD5 is  supported.  This
       is  followed  by a secret clause which contains the base-64 encoding of
       the algorithm's encryption key. The base-64 string is enclosed in  dou-
       ble quotes.

       There  are  two  common  ways  to  generate  the base-64 string for the
       secret. The BIND 9 program rndc-confgen(1M) can be used to  generate  a
       random  key,  or  the mmencode program, also known as mimencode, can be
       used to generate a base-64 string from known input. mmencode  does  not
       ship  with  BIND  9  but is available on many systems. See the EXAMPLES
       section for sample command lines for each.

       options {
        default-server  localhost;
        default-key     samplekey;

       server localhost {
        key             samplekey;

       key samplekey {
        algorithm hmac-md5;
        secret    "c3Ryb25nIGVub3VnaCBmb3IgYSBtYW4gYnV0IG1hZGUgZm9yIGEgd29tYW4K";

       In the above example, rndc by default  uses  the  server  at  localhost
       (  and  the  key  called samplekey. Commands to the localhost
       server use the samplekey  key,  which  must  also  be  defined  in  the
       server's  configuration  file  with  the  same name and secret. The key
       statement indicates that samplekey uses  the  HMAC-MD5  algorithm.  Its
       secret  clause  contains  the  base-64  encoding of the HMAC-MD5 secret
       enclosed in double quotes.

       To generate a random secret with rndc-confgen:


       A complete rndc.conf file, including the randomly generated  key,  will
       be  written  to  the  standard  output.  Commented out key and controls
       statements for named.conf are also printed.

       To generate a base-64 secret with mmencode:

       echo "known plaintext for a secret" | mmencode

       The name server must be configured to accept rndc  connections  and  to
       recognize  the  key specified in the rndc.conf file, using the controls
       statement in named.conf. See the sections on the controls statement  in
       the BIND 9 Administrator Reference Manual for details.

       See attributes(5) for descriptions of the following attributes:

       tab()  box;  cw(2.750000i)| cw(2.750000i) lw(2.750000i)| lw(2.750000i).
       ATTRIBUTE TYPEATTRIBUTE VALUE AvailabilitySUNWbind9 Interface  Stabili-

       rndc(1M), rndc-confgen(1M), named.conf(4), attributes(5)

       BIND 9 Administrator Reference Manual

       Source for BIND9 is available in the SUNWbind9S package.

SunOS 5.10                        15 Dec 2004                     rndc.conf(4)