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27 .TH "RNDC\&.CONF" "5" "2007\-06\-18" "ISC" "BIND9"
28 .\" -----------------------------------------------------------------
29 .\" * Define some portability stuff
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31 .\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
32 .\" http://bugs.debian.org/507673
33 .\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
34 .\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
37 .\" -----------------------------------------------------------------
38 .\" * set default formatting
39 .\" -----------------------------------------------------------------
40 .\" disable hyphenation
42 .\" disable justification (adjust text to left margin only)
44 .\" -----------------------------------------------------------------
45 .\" * MAIN CONTENT STARTS HERE *
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48 rndc.conf \- rndc configuration file
50 .HP \w'\fBrndc\&.conf\fR\ 'u
55 is the configuration file for
56 \fBrndc\fR, the BIND 9 name server control utility\&. This file has a similar structure and syntax to
57 named\&.conf\&. 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:
61 C++ style: // to end of line
63 Unix style: # to end of line
67 named\&.conf\&. The file uses three statements: an options statement, a server statement and a key statement\&.
71 statement contains five clauses\&. The
73 clause is followed by the name or address of a name server\&. This host will be used when no name server is given as an argument to
76 clause is followed by the name of a key which is identified by a
80 is provided on the rndc command line, and no
82 clause is found in a matching
84 statement, this default key will be used to authenticate the server\*(Aqs commands and responses\&. The
86 clause is followed by the port to connect to on the remote name server\&. If no
88 option is provided on the rndc command line, and no
90 clause is found in a matching
92 statement, this default port will be used to connect\&. The
93 \fBdefault\-source\-address\fR
95 \fBdefault\-source\-address\-v6\fR
96 clauses which can be used to set the IPv4 and IPv6 source addresses respectively\&.
100 keyword, the server statement includes a string which is the hostname or address for a name server\&. The statement has three possible clauses:
104 \fBaddresses\fR\&. The key name must match the name of a key statement in the file\&. The port number specifies the port to connect to\&. If an
106 clause is supplied these addresses will be used instead of the server name\&. Each address can take an optional port\&. If an
107 \fBsource\-address\fR
109 \fBsource\-address\-v6\fR
110 of supplied then these will be used to specify the IPv4 and IPv6 source addresses respectively\&.
114 statement begins with an identifying string, the name of the key\&. The statement has two clauses\&.
116 identifies the encryption algorithm for
118 to use; currently only HMAC\-MD5 is supported\&. This is followed by a secret clause which contains the base\-64 encoding of the algorithm\*(Aqs encryption key\&. The base\-64 string is enclosed in double quotes\&.
120 There are two common ways to generate the base\-64 string for the secret\&. The BIND 9 program
122 can be used to generate a random key, or the
124 program, also known as
125 \fBmimencode\fR, can be used to generate a base\-64 string from known input\&.
127 does not ship with BIND 9 but is available on many systems\&. See the EXAMPLE section for sample command lines for each\&.
135 default\-server localhost;
136 default\-key samplekey;
161 addresses { localhost port 5353; };
174 secret "6FMfj43Osz4lyb24OIe2iGEz9lf1llJO+lz";
187 secret "R3HI8P6BKw9ZwXwN3VZKuQ==";
194 In the above example,
196 will by default use the server at localhost (127\&.0\&.0\&.1) and the key called samplekey\&. Commands to the localhost server will use the samplekey key, which must also be defined in the server\*(Aqs configuration file with the same name and secret\&. The key statement indicates that samplekey uses the HMAC\-MD5 algorithm and its secret clause contains the base\-64 encoding of the HMAC\-MD5 secret enclosed in double quotes\&.
199 \fBrndc \-s testserver\fR
202 will connect to server on localhost port 5353 using the key testkey\&.
204 To generate a random secret with
211 file, including the randomly generated key, will be written to the standard output\&. Commented\-out
219 To generate a base\-64 secret with
222 \fBecho "known plaintext for a secret" | mmencode\fR
223 .SH "NAME SERVER CONFIGURATION"
225 The name server must be configured to accept rndc connections and to recognize the key specified in the
227 file, using the controls statement in
228 named\&.conf\&. See the sections on the
230 statement in the BIND 9 Administrator Reference Manual for details\&.
234 \fBrndc-confgen\fR(8),
236 BIND 9 Administrator Reference Manual\&.
239 \fBInternet Systems Consortium, Inc\&.\fR
242 Copyright \(co 2004, 2005, 2007, 2014, 2015 Internet Systems Consortium, Inc. ("ISC")
244 Copyright \(co 2000, 2001 Internet Software Consortium.