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updated for 9.1
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@ -12,11 +12,9 @@ upgrading an existing BIND 8 installation to use BIND 9.
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1.1. Unimplemented Options and Changed Defaults
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BIND 9.0.0 supports most, but not all but not of the named.conf
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options of BIND 8. Unimplemented options include those for selective
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(per-domain) forwarding, sortlists, statistics, and process limits;
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for a complete list, see doc/misc/options. We plan to implement most
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of these in in BIND 9.1.
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BIND 9.1 supports most, but not all but not of the named.conf options
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of BIND 8. For a complete list of implmented options, see
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doc/misc/options.
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If your named.conf file uses an unimplemented option, named will log a
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warning message. A message is also logged about each option whose
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@ -59,7 +57,8 @@ insensitive.
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1.5. Notify messages and Refesh queries
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The source address and port for these is now controlled by
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transfer-source rather that query-source.
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"notify-source" and "transfer-source", respectively, rather that
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query-source as in BIND 8.
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2. Zone File Compatibility
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@ -106,27 +105,27 @@ line.
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2.5. Unimplemented BIND 8 Extensions
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$GENERATE: This deprecated form of getting a literal $ into a domain
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name ($$) is no longer supported, use \$ instead.
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$GENERATE: The "$$" construct for getting a literal $ into a domain
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name is deprecated. Use \$ instead.
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3. Interoperability Impact of New Protocol Features
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BIND 9 uses EDNS0 (RFC2671) to advertise its receive buffer size. It
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also sets the AD bit in queries to indicate that it wishes to receive
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DNSSEC responses (this usage of the AD bit is not yet standard, but
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hopefully it will be soon).
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also sets an EDNS flag bit in queries to indicate that it wishes to
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receive DNSSEC responses; this flag bit usage is not yet standardized,
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but we hope it will be.
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Most older servers that do not support EDNS0 and/or DNSSEC, including
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all known versions of BIND, will send a FORMERR or NOTIMP response to
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these queries. When this happens, BIND 9 will automatically retry the
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query without EDNS0 and AD.
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Most older servers that do not support EDNS0, including prior versions
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of BIND, will send a FORMERR or NOTIMP response to these queries.
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When this happens, BIND 9 will automatically retry the query without
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EDNS0.
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Unfortunately, there exists at least one non-BIND name server
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implementation that silently ignores these queries instead of sending
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an error response. Resolving names in zones where all or most
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authoritative servers use this server will be very slow or fail
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completely. We have contacted the manufacturer of the name server in
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case and are trying to resolve the issue with them.
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case, and they are working on a solution.
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4. Unrestricted Character Set
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@ -156,7 +155,7 @@ be upgraded.
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The "ndc" program has been replaced by "rndc", which is capable of
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remote operation. Unlike ndc, rndc requires a configuration file;
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see the man pages in doc/man/bin/rndc.1 and doc/man/bin/rndc.conf.5 for
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details. Many of the ndc commands are still unimplemented in rndc.
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details. Some of the ndc commands are still unimplemented in rndc.
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$Id: migration,v 1.15 2000/10/31 05:34:15 marka Exp $
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$Id: migration,v 1.16 2000/11/30 23:24:01 gson Exp $
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