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/contrib/bind9/bin/rndc/rndc.conf.5

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  1.\" Copyright (C) 2004, 2005, 2007 Internet Systems Consortium, Inc. ("ISC")
  2.\" Copyright (C) 2000, 2001 Internet Software Consortium.
  3.\" 
  4.\" Permission to use, copy, modify, and/or distribute this software for any
  5.\" purpose with or without fee is hereby granted, provided that the above
  6.\" copyright notice and this permission notice appear in all copies.
  7.\" 
  8.\" THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
  9.\" REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
 10.\" AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
 11.\" INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
 12.\" LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
 13.\" OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
 14.\" PERFORMANCE OF THIS SOFTWARE.
 15.\"
 16.\" $Id$
 17.\"
 18.hy 0
 19.ad l
 20.\"     Title: \fIrndc.conf\fR
 21.\"    Author: 
 22.\" Generator: DocBook XSL Stylesheets v1.71.1 <http://docbook.sf.net/>
 23.\"      Date: June 30, 2000
 24.\"    Manual: BIND9
 25.\"    Source: BIND9
 26.\"
 27.TH "\fIRNDC.CONF\fR" "5" "June 30, 2000" "BIND9" "BIND9"
 28.\" disable hyphenation
 29.nh
 30.\" disable justification (adjust text to left margin only)
 31.ad l
 32.SH "NAME"
 33rndc.conf \- rndc configuration file
 34.SH "SYNOPSIS"
 35.HP 10
 36\fBrndc.conf\fR
 37.SH "DESCRIPTION"
 38.PP
 39\fIrndc.conf\fR
 40is the configuration file for
 41\fBrndc\fR, the BIND 9 name server control utility. This file has a similar structure and syntax to
 42\fInamed.conf\fR. 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:
 43.PP
 44C style: /* */
 45.PP
 46C++ style: // to end of line
 47.PP
 48Unix style: # to end of line
 49.PP
 50\fIrndc.conf\fR
 51is much simpler than
 52\fInamed.conf\fR. The file uses three statements: an options statement, a server statement and a key statement.
 53.PP
 54The
 55\fBoptions\fR
 56statement contains five clauses. The
 57\fBdefault\-server\fR
 58clause 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
 59\fBrndc\fR. The
 60\fBdefault\-key\fR
 61clause is followed by the name of a key which is identified by a
 62\fBkey\fR
 63statement. If no
 64\fBkeyid\fR
 65is provided on the rndc command line, and no
 66\fBkey\fR
 67clause is found in a matching
 68\fBserver\fR
 69statement, this default key will be used to authenticate the server's commands and responses. The
 70\fBdefault\-port\fR
 71clause is followed by the port to connect to on the remote name server. If no
 72\fBport\fR
 73option is provided on the rndc command line, and no
 74\fBport\fR
 75clause is found in a matching
 76\fBserver\fR
 77statement, this default port will be used to connect. The
 78\fBdefault\-source\-address\fR
 79and
 80\fBdefault\-source\-address\-v6\fR
 81clauses which can be used to set the IPv4 and IPv6 source addresses respectively.
 82.PP
 83After the
 84\fBserver\fR
 85keyword, the server statement includes a string which is the hostname or address for a name server. The statement has three possible clauses:
 86\fBkey\fR,
 87\fBport\fR
 88and
 89\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
 90\fBaddresses\fR
 91clause is supplied these addresses will be used instead of the server name. Each address can take an optional port. If an
 92\fBsource\-address\fR
 93or
 94\fBsource\-address\-v6\fR
 95of supplied then these will be used to specify the IPv4 and IPv6 source addresses respectively.
 96.PP
 97The
 98\fBkey\fR
 99statement begins with an identifying string, the name of the key. The statement has two clauses.
100\fBalgorithm\fR
101identifies the encryption algorithm for
102\fBrndc\fR
103to 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 double quotes.
104.PP
105There are two common ways to generate the base\-64 string for the secret. The BIND 9 program
106\fBrndc\-confgen\fR
107can be used to generate a random key, or the
108\fBmmencode\fR
109program, also known as
110\fBmimencode\fR, can be used to generate a base\-64 string from known input.
111\fBmmencode\fR
112does not ship with BIND 9 but is available on many systems. See the EXAMPLE section for sample command lines for each.
113.SH "EXAMPLE"
114.PP
115.RS 4
116.nf
117      options {
118        default\-server  localhost;
119        default\-key     samplekey;
120      };
121.fi
122.RE
123.sp
124.PP
125.RS 4
126.nf
127      server localhost {
128        key             samplekey;
129      };
130.fi
131.RE
132.sp
133.PP
134.RS 4
135.nf
136      server testserver {
137        key		testkey;
138        addresses	{ localhost port 5353; };
139      };
140.fi
141.RE
142.sp
143.PP
144.RS 4
145.nf
146      key samplekey {
147        algorithm       hmac\-md5;
148        secret          "6FMfj43Osz4lyb24OIe2iGEz9lf1llJO+lz";
149      };
150.fi
151.RE
152.sp
153.PP
154.RS 4
155.nf
156      key testkey {
157        algorithm	hmac\-md5;
158        secret		"R3HI8P6BKw9ZwXwN3VZKuQ==";
159      };
160.fi
161.RE
162.sp
163.PP
164In the above example,
165\fBrndc\fR
166will 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's 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.
167.PP
168If
169\fBrndc \-s testserver\fR
170is used then
171\fBrndc\fR
172will connect to server on localhost port 5353 using the key testkey.
173.PP
174To generate a random secret with
175\fBrndc\-confgen\fR:
176.PP
177\fBrndc\-confgen\fR
178.PP
179A complete
180\fIrndc.conf\fR
181file, including the randomly generated key, will be written to the standard output. Commented\-out
182\fBkey\fR
183and
184\fBcontrols\fR
185statements for
186\fInamed.conf\fR
187are also printed.
188.PP
189To generate a base\-64 secret with
190\fBmmencode\fR:
191.PP
192\fBecho "known plaintext for a secret" | mmencode\fR
193.SH "NAME SERVER CONFIGURATION"
194.PP
195The name server must be configured to accept rndc connections and to recognize the key specified in the
196\fIrndc.conf\fR
197file, using the controls statement in
198\fInamed.conf\fR. See the sections on the
199\fBcontrols\fR
200statement in the BIND 9 Administrator Reference Manual for details.
201.SH "SEE ALSO"
202.PP
203\fBrndc\fR(8),
204\fBrndc\-confgen\fR(8),
205\fBmmencode\fR(1),
206BIND 9 Administrator Reference Manual.
207.SH "AUTHOR"
208.PP
209Internet Systems Consortium
210.SH "COPYRIGHT"
211Copyright \(co 2004, 2005, 2007 Internet Systems Consortium, Inc. ("ISC")
212.br
213Copyright \(co 2000, 2001 Internet Software Consortium.
214.br