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-.\" ++Copyright++ 1985
-.\" -
-.\" Copyright (c) 1985
-.\" The Regents of the University of California. All rights reserved.
-.\"
-.\" Redistribution and use in source and binary forms, with or without
-.\" modification, are permitted provided that the following conditions
-.\" are met:
-.\" 1. Redistributions of source code must retain the above copyright
-.\" notice, this list of conditions and the following disclaimer.
-.\" 2. Redistributions in binary form must reproduce the above copyright
-.\" notice, this list of conditions and the following disclaimer in the
-.\" documentation and/or other materials provided with the distribution.
-.\" 3. All advertising materials mentioning features or use of this software
-.\" must display the following acknowledgement:
-.\" This product includes software developed by the University of
-.\" California, Berkeley and its contributors.
-.\" 4. Neither the name of the University nor the names of its contributors
-.\" may be used to endorse or promote products derived from this software
-.\" without specific prior written permission.
-.\"
-.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
-.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
-.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
-.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
-.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
-.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
-.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
-.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
-.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
-.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
-.\" SUCH DAMAGE.
-.\" -
-.\" Portions Copyright (c) 1993 by Digital Equipment Corporation.
-.\"
-.\" Permission to use, copy, modify, and distribute this software for any
-.\" purpose with or without fee is hereby granted, provided that the above
-.\" copyright notice and this permission notice appear in all copies, and that
-.\" the name of Digital Equipment Corporation not be used in advertising or
-.\" publicity pertaining to distribution of the document or software without
-.\" specific, written prior permission.
-.\"
-.\" THE SOFTWARE IS PROVIDED "AS IS" AND DIGITAL EQUIPMENT CORP. DISCLAIMS ALL
-.\" WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES
-.\" OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL DIGITAL EQUIPMENT
-.\" CORPORATION BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
-.\" DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
-.\" PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
-.\" ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
-.\" SOFTWARE.
-.\" -
-.\" --Copyright--
-.\"
-.\" @(#)named.8 6.6 (Berkeley) 2/14/89
-.\"
-.TH @INDOT_U@NAMED @SYS_OPS_EXT_U@ "June 20, 1995"
-.UC 4
-.SH NAME
-@INDOT@named \- Internet domain name server
-.SH SYNOPSIS
-.B @INDOT@named
-[
-.B \-d
-.I debuglevel
-] [
-.B \-p
-.IR port# [\fB/\fP\fIlocalport#\fP]
-] [{\-b}
-.I bootfile
-] [
-.B \-q
-] [
-.B \-r
-]
-.SH DESCRIPTION
-.I Named
-is the Internet domain name server.
-See RFC's 1033, 1034, and 1035 for more information on the Internet
-name-domain system. Without any arguments,
-.I named
-will read the default boot file
-.IR /etc/named.boot ,
-read any initial data and listen for queries.
-.PP
-Options are:
-.TP
-.B \-d
-Print debugging information.
-A number after the ``d'' determines the level of
-messages printed.
-.TP
-.B \-p
-Use nonstandard port numbers. The default is the standard port number
-as returned by getservbyname(@LIB_NETWORK_EXT@) for service ``domain''.
-The argument can specify two port numbers separated by a slash (``\fB/\fP'')
-in which case the first port is that used when contacting remote servers,
-and the second one is the service port bound by the local instance of
-.IR named .
-This is used mostly for debugging purposes.
-.TP
-.B \-b
-Use an alternate boot file. This is optional and allows you to
-specify a file with a leading dash.
-.TP
-.B \-q
-Trace all incoming queries if \fInamed\fP has been compiled with
-\fIQRYLOG\fP defined. \fINOTE:\fP this option is deprecated in favour
-of the boot file directive ``options query-log''.
-.TP
-.B \-r
-Turns recursion off in the server. Answers can come only from local
-(primary or secondary) zones. This can be used on root servers.
-\fINOTE:\fP this option is deprecated in favour
-of the boot file directive ``options no-recursion''.
-.PP
-Any additional argument is taken as the name of the boot file.
-If multiple boot files are specified, only the last is used.
-.PP
-The boot file contains information about where the name server is to get
-its initial data.
-Lines in the boot file cannot be continued on subsequent lines.
-The following is a small example:
-.in +2m
-.nf
-
-;
-; boot file for name server
-;
-directory /usr/local/adm/named
-
-.ta \w'check-names\ 'u +\w'6.32.128.IN-ADDR.ARPA\ 'u +\w'128.32.137.8 128.32.137.3\ 'u
-; type domain source host/file backup file
-
-cache . root.cache
-primary Berkeley.EDU berkeley.edu.zone
-primary 32.128.IN-ADDR.ARPA ucbhosts.rev
-secondary CC.Berkeley.EDU 128.32.137.8 128.32.137.3 cc.zone.bak
-secondary 6.32.128.IN-ADDR.ARPA 128.32.137.8 128.32.137.3 cc.rev.bak
-primary 0.0.127.IN-ADDR.ARPA localhost.rev
-forwarders 10.0.0.78 10.2.0.78
-limit transfers-in 10
-limit datasize 64M
-limit files 256
-options forward-only query-log fake-iquery
-check-names primary fail
-check-names secondary warn
-check-names response ignore
-
-.DT
-.fi
-.in
-The ``directory'' line causes the server to change its working directory to
-the directory specified. This can be important for the correct processing
-of \s-1$INCLUDE\s+1 files in primary zone files.
-.LP
-The ``cache'' line specifies that data in ``root.cache'' is to be placed in
-the backup cache. Its main use is to specify data such as locations of root
-domain servers. This cache is not used during normal operation, but is used
-as ``hints'' to find the current root servers. The file ``root.cache'' is
-in the same format as ``berkeley.edu.zone''. There can be more than one
-``cache'' file specified. The ``root.cache'' file should be retrieved
-periodically from \s-1FTP.RS.INTERNIC.NET\s+1 since it contains a list of
-root servers, and this list changes periodically.
-.LP
-The first example ``primary'' line states that the file
-``berkeley.edu.zone'' contains authoritative data for the ``Berkeley.EDU''
-zone. The file ``berkeley.edu.zone'' contains data in the master file
-format described in RFC 883. All domain names are relative to the origin, in
-this case, ``Berkeley.EDU'' (see below for a more detailed description).
-The second ``primary'' line states that the file ``ucbhosts.rev'' contains
-authoritative data for the domain ``32.128.IN-ADDR.ARPA,'' which is used to
-translate addresses in network 128.32 to hostnames. Each master file should
-begin with an SOA record for the zone (see below).
-.LP
-The first example ``secondary'' line specifies that all authoritative data
-under ``CC.Berkeley.EDU'' is to be transferred from the name server at
-128.32.137.8. If the transfer fails it will try 128.32.137.3 and continue
-trying the addresses, up to 10, listed on this line. The secondary copy is
-also authoritative for the specified domain. The first non-dotted-quad
-address on this line will be taken as a filename in which to backup the
-transferred zone. The name server will load the zone from this backup file
-if it exists when it boots, providing a complete copy even if the master
-servers are unreachable. Whenever a new copy of the domain is received by
-automatic zone transfer from one of the master servers, this file will be
-updated. If no file name is given, a temporary file will be used, and will
-be deleted after each successful zone transfer. This is not recommended
-since it is a needless waste of bandwidth. The second example ``secondary''
-line states that the address-to-hostname mapping for the subnet 128.32.136
-should be obtained from the same list of master servers as the previous zone.
-.LP
-The ``forwarders'' line specifies the addresses of sitewide servers that
-will accept recursive queries from other servers. If the boot file
-specifies one or more forwarders, then the server will send all queries for
-data not in the cache to the forwarders first. Each forwarder will be asked
-in turn until an answer is returned or the list is exhausted. If no answer
-is forthcoming from a forwarder, the server will continue as it would have
-without the forwarders line unless it is in ``forward-only'' mode. The
-forwarding facility is useful to cause a large sitewide cache to be
-generated on a master, and to reduce traffic over links to outside servers.
-It can also be used to allow servers to run that do not have direct access
-to the Internet, but wish to look up exterior names anyway.
-.LP
-The ``slave'' line (deprecated) is allowed for backward compatibility. Its
-meaning is identical to ``options forward-only''.
-.LP
-The ``sortlist'' line can be used to indicate networks that are to be
-preferred over other networks. Queries for host addresses from hosts on the
-same network as the server will receive responses with local network
-addresses listed first, then addresses on the sort list, then other
-addresses.
-.LP
-The ``xfrnets'' directive (not shown) can be used to implement primitive
-access control. If this directive is given, then your name server will
-only answer zone transfer requests from hosts which are on networks listed
-in your ``xfrnets'' directives. This directive may also be given as
-``tcplist'' for compatibility with older, interim servers.
-.LP
-The ``include'' directive (not shown) can be used to process the contents
-of some other file as though they appeared in place of the ``include''
-directive. This is useful if you have a lot of zones or if you have
-logical groupings of zones which are maintained by different people.
-The ``include'' directive takes one argument, that being the name of the
-file whose contents are to be included. No quotes are necessary around
-the file name.
-.LP
-The ``bogusns'' directive (not shown) tells \s-1BIND\s+1 that no queries
-are to be sent to the specified name server addresses (which are specified
-as dotted quads, not as domain names). This is useful when you know that
-some popular server has bad data in a zone or cache, and you want to avoid
-contamination while the problem is being fixed.
-.LP
-The ``limit'' directive can be used to change \s-1BIND\s+1's internal limits,
-some of which (\fBdatasize\fP, for example) are implemented by the system and
-others (like \fBtransfers-in\fP) by \s-1BIND\s+1 itself. The number following
-the limit name can be scaled by postfixing a ``k,'' ``m,'' or ``g'' for
-kilobytes, megabytes, and gigabytes respectively.
-\fBdatasize\fP's argument sets the process data size enforced by the kernel.
-\fINote:\fP not all systems provide a call to implement this -- on such
-systems, the use of the \fBdatasize\fP parameter of ``limit'' will result in
-a warning message.
-\fBtransfers-in\fP's argument is the number of \fInamed-xfer\fP subprocesses
-which \s-1BIND\s+1 will spawn at any one time.
-\fBtransfers-per-ns\fP's argument is the maximum number of zone transfers to
-be simultaneously initiated to any given remote name server.
-\fBfiles\fP's argument sets the number of file descriptors available to
-the process. \fINote:\fP not all systems provide a call to implement
-this -- on such systems, the use of the \fBfiles\fP parameter of ``limit''
-will result in a warning message.
-.LP
-The ``options'' directive introduces a boolean specifier that changes the
-behaviour of \s-1BIND\s+1. More than one option can be specified in a single
-directive. The currently defined options are as follows:
-\fBno-recursion\fP, which will cause \s-1BIND\s+1 to answer with a referral
-rather than actual data whenever it receives a query for a name it is not
-authoritative for -- don't set this on a server that is listed in any host's
-\fIresolv.conf\fP file;
-\fBno-fetch-glue\fP, which keeps \s-1BIND\s+1 from fetching missing glue when
-constructing the ``additional data'' section of a response; this can be used
-in conjunction with \fBno-recursion\fP to prevent \s-1BIND\s+1's cache from
-ever growing in size or becoming corrupted;
-\fBquery-log\fP, which causes all queries to be logged via
-syslog(@SYS_OPS_EXT@) -- this is a lot of data, don't turn it on lightly;
-\fBforward-only\fP, which causes the server to query only its forwarders --
-this option is normally used on machine that wishes to run a server but for
-physical or administrative reasons cannot be given access to the Internet;
-and \fBfake-iquery\fP, which tells \s-1BIND\s+1 to send back a useless and
-bogus reply to ``inverse queries'' rather than responding with an error --
-this is helpful if you have a lot of microcomputers or SunOS hosts or both.
-.LP
-The ``check-names'' directive tells \s-1BIND\s+1 to check names in either
-``primary'' or ``secondary'' zone files, or in messages (``response'')
-received during recursion (for example, those which would be forwarded back
-to a firewalled requestor). For each type of name,
-\s-1BIND\s+1 can be told to ``fail'', such that a zone would not be loaded
-or a response would not be cached or forwarded, or merely ``warn'' which
-would cause a message to be emitted in the system operations logs, or to
-``ignore'' the badness of a name and process it in the traditional fashion.
-Names are considered good if they match RFC 952's expectations (if they are
-host names), or if they consist only of printable \s-1ASCII\s+1 characters
-(if they are not host names).
-.LP
-The ``max-fetch'' directive (not shown) is allowed for backward compatibility;
-its meaning is identical to ``limit transfers-in''.
-.PP
-The master file consists of control information and a list of resource
-records for objects in the zone of the forms:
-.RS
-.nf
-
-$INCLUDE <filename> <opt_domain>
-$ORIGIN <domain>
-<domain> <opt_ttl> <opt_class> <type> <resource_record_data>
-
-.fi
-.RE
-where
-.I domain
-is "." for root, "@" for the current origin, or a standard domain
-name. If
-.I domain
-is a standard domain name that does not end with ``.'', the current origin
-is appended to the domain. Domain names ending with ``.'' are
-unmodified.
-The
-.I opt_domain
-field is used to define an origin for the data in an included file.
-It is equivalent to placing a $ORIGIN statement before the first
-line of the included file. The field is optional.
-Neither the
-.I opt_domain
-field nor $ORIGIN statements in the included file modify the current origin
-for this file.
-The
-.I opt_ttl
-field is an optional integer number for the time-to-live field.
-It defaults to zero, meaning the minimum value specified in the SOA
-record for the zone.
-The
-.I opt_class
-field is the object address type; currently only one type is supported,
-.BR IN ,
-for objects connected to the DARPA Internet.
-The
-.I type
-field contains one of the following tokens; the data expected in the
-.I resource_record_data
-field is in parentheses.
-.TP "\w'MINFO 'u"
-A
-a host address (dotted quad)
-.IP NS
-an authoritative name server (domain)
-.IP MX
-a mail exchanger (domain), preceded by a preference value (0..32767),
-with lower numeric values representing higher logical preferences.
-.IP CNAME
-the canonical name for an alias (domain)
-.IP SOA
-marks the start of a zone of authority (domain of originating host,
-domain address of maintainer, a serial number and the following
-parameters in seconds: refresh, retry, expire and minimum TTL (see RFC 883)).
-.IP NULL
-a null resource record (no format or data)
-.IP RP
-a Responsible Person for some domain name (mailbox, TXT-referral)
-.IP PTR
-a domain name pointer (domain)
-.IP HINFO
-host information (cpu_type OS_type)
-.PP
-Resource records normally end at the end of a line,
-but may be continued across lines between opening and closing parentheses.
-Comments are introduced by semicolons and continue to the end of the line.
-.PP
-Note that there are other resource record types, not shown here. You should
-consult the \s-1BIND\s+1 Operations Guide (``\s-1BOG\s+1'') for the complete
-list. Some resource record types may have been standardized in newer RFC's
-but not yet implemented in this version of \s-1BIND\s+1.
-.PP
-Each master zone file should begin with an SOA record for the zone.
-An example SOA record is as follows:
-.LP
-.nf
-@ IN SOA ucbvax.Berkeley.EDU. rwh.ucbvax.Berkeley.EDU. (
-.ta \w'x\ IN\ SOA\ 'u +\w'1989020501\ 'u
- 1989020501 ; serial
- 10800 ; refresh
- 3600 ; retry
- 3600000 ; expire
- 86400 ) ; minimum
-.fi
-.LP
-The SOA specifies a serial number, which should be changed each time the
-master file is changed. Note that the serial number can be given as a
-dotted number, but this is a \fIvery\fP unwise thing to do since the
-translation to normal integers is via concatenation rather than
-multiplication and addition. You can spell out the year, month, day of
-month, and 0..99 version number and still fit inside the unsigned 32-bit
-size of this field. It's true that we will have to rethink this strategy in
-the year 4294 (Greg.) but we're not worried about it. Secondary servers
-check the serial number at intervals specified by the refresh time in
-seconds; if the serial number changes, a zone transfer will be done to load
-the new data. If a master server cannot be contacted when a refresh is due,
-the retry time specifies the interval at which refreshes should be attempted.
-If a master server cannot be contacted within the interval given by the
-expire time, all data from the zone is discarded by secondary servers. The
-minimum value is the time-to-live (``\s-1TTL\s+1'') used by records in the
-file with no explicit time-to-live value.
-.SH NOTES
-The boot file directives ``domain'' and ``suffixes'' have been
-obsoleted by a more useful resolver-based implementation of
-suffixing for partially qualified domain names. The prior mechanisms
-could fail under a number of situations, especially when then local
-nameserver did not have complete information.
-.sp
-The following signals have the specified effect when sent to the
-server process using the
-.IR kill (@CMD_EXT@)
-command.
-.IP SIGHUP
-Causes server to read named.boot and reload the database. If the server
-is built with the FORCED_RELOAD compile-time option, then SIGHUP will
-also cause the server to check the serial number on all secondary zones.
-Normally the serial numbers are only checked at the SOA-specified intervals.
-.IP SIGINT
-Dumps the current data base and cache to /var/tmp/named_dump.db
-.IP SIGIOT
-Dumps statistics data into /var/tmp/named.stats if the server is
-compiled with -DSTATS. Statistics data is appended to the file. Some
-systems use SIGABRT rather than SIGIOT for this.
-.IP SIGSYS
-Dumps the profiling data in /var/tmp if the server is compiled
-with profiling (server forks, chdirs and exits).
-.IP SIGTERM
-Dumps the primary and secondary database files.
-Used to save modified data on shutdown if the
-server is compiled with dynamic updating enabled.
-.IP SIGUSR1
-Turns on debugging; each SIGUSR1 increments debug level.
-(SIGEMT on older systems without SIGUSR1)
-.IP SIGUSR2
-Turns off debugging completely.
-(SIGFPE on older systems without SIGUSR2)
-.IP SIGWINCH
-Toggles logging of all incoming queries via syslog(@SYS_OPS_EXT@)
-(requires server to have been built with the QRYLOG option).
-.SH FILES
-.nf
-.ta \w'/var/tmp/named_dump.db 'u
-/etc/named.boot name server configuration boot file
-/etc/named.pid the process id (on older systems)
-/var/run/named.pid the process id (on newer systems)
-/var/tmp/named_dump.db dump of the name server database
-/var/tmp/named.run debug output
-/var/tmp/named.stats nameserver statistics data
-.fi
-.SH "SEE ALSO"
-kill(@CMD_EXT@), gethostbyname(@LIB_NETWORK_EXT@), signal(@SYSCALL_EXT@),
-resolver(@LIB_NETWORK_EXT@), resolver(@FORMAT_EXT@), hostname(@DESC_EXT@),
-RFC 882, RFC 883, RFC 973, RFC 974, RFC 1033, RFC 1034, RFC 1035, RFC 1123,
-\fIName Server Operations Guide for \s-1BIND\s+1\fR