113 lines
3.5 KiB
HTML
113 lines
3.5 KiB
HTML
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2//EN">
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<HTML>
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<HEAD>
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<TITLE>BIND Documentation Definitions</TITLE>
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</HEAD>
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<BODY>
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<H2>BIND Configuration File Guide--Documentation Definitions</H2>
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<HR>
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<H3>Syntactic Miscellany</H3>
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<P>Described below are elements used throughout the BIND configuration
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file documentation. Elements which are only associated with one
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statement are described only in the section describing that statement.
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<DL>
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<DT><VAR>acl_name</VAR>
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<DD>
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The name of an <A HREF="address_list.html">address match list</A>,
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as defined by the <A HREF="acl.html">acl</A> statement.
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<DT><VAR>address_match_list</VAR>
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<DD>
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A list of one or more <VAR>ip_address</VAR>, <VAR>ip_prefix</VAR> or
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<VAR>acl_name</VAR> elements, as described in the
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<A HREF="address_list.html">Address Match Lists</A> section.
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<DT><VAR>dotted-decimal</VAR>
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<DD>
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One or more integers valued 0 through 255 separated only by dots
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("."), such as <CODE>123</CODE> or <CODE>45.67</CODE> or
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<CODE>89.123.45.67</CODE>.
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<DT><VAR>domain_name</VAR>
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<DD>
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A quoted string which will be used as a DNS name, for example
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<CODE>"my.test.domain"</CODE>.
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<DT><VAR>path_name</VAR>
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<DD>
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A quoted string which will be used as a pathname, such as
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<CODE>"zones/master/my.test.domain"</CODE>.
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<DT><VAR>ip_addr</VAR>
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<DD>
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An IP address in with exactly four elements in
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<VAR>dotted-decimal</VAR> notation.
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<DT><VAR>ip_port</VAR>
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<DD>
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An IP port <VAR>number</VAR>. <VAR>number</VAR> is limited to 0
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through 65535, with values below 1024 typically restricted to
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root-owned processes.
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<DT><VAR>ip_prefix</VAR>
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<DD>
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An IP network specified in <VAR>dotted-decimal</VAR> form, followed by "/"
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and then the number of bits in the netmask. E.g. <CODE>127/8</CODE> is
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the network <CODE>127.0.0.0</CODE> with netmask <CODE>255.0.0.0</CODE>.
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<CODE>1.2.3.0/24</CODE> is network <CODE>1.2.3.0</CODE> with netmask
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<CODE>255.255.255.0</CODE>.
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<DT><VAR>number</VAR>
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<DD>
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A non-negative integer with an entire range limited by the range of a
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C language signed integer (2,147,483,647 on a machine with 32 bit
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integers). Its acceptable value might further be limited by the
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context in which it is used.
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<DT><VAR>size_spec</VAR>
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<DD>
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A <VAR>number</VAR>, the word <CODE>unlimited</CODE>, or the word
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<CODE>default</CODE>.
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<P>The maximum value of <VAR>size_spec</VAR> is that of unsigned long
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integers on the machine. <CODE>unlimited</CODE> requests unlimited use, or
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the maximum available amount. <CODE>default</CODE> uses the limit that
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was in force when the server was started.</P>
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<P>A <VAR>number</VAR> can optionally be followed by a scaling factor:
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<CODE>K</CODE> or <CODE>k</CODE> for kilobytes, <CODE>M</CODE> or
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<CODE>m</CODE> for megabytes, and <CODE>G</CODE> or <CODE>g</CODE> for
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gigabytes, which scale by 1024, 1024*1024, and 1024*1024*1024
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respectively.
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<P>Integer storage overflow is currently silently ignored during
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conversion of scaled values, resulting in values less than intended,
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possibly even negative. Using <CODE>unlimited</CODE> is the best way
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to safely set a really large number.</P>
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<DT><VAR>yes_or_no</VAR>
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<DD>
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Either <CODE>yes</CODE> or <CODE>no</CODE>. The words
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<CODE>true</CODE> and <CODE>false</CODE> are also accepted, as are the
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numbers <CODE>1</CODE> and <CODE>0</CODE>.
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</DL>
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<HR>
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<CENTER><P>[ <A HREF="config.html">BIND Config. File</A>
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| <A HREF="http://www.vix.com/isc/bind.html">BIND Home</A>
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| <A HREF="http://www.isc.org">ISC</A> ]</P></CENTER>
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<HR>
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<ADDRESS>
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Last Updated: $Id: docdef.html,v 1.4 1998/03/21 01:03:12 halley Exp $
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</ADDRESS>
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</BODY>
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</HTML>
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