0090d18235
The mentioned document "Name Server Operations Guide for BIND" is
outdated, so remove it from the SEE ALSO section of hosts.5
and resolver.{3,5}.
PR: 266360
Reported by: Graham Perrin <grahamperrin at FreeBSD dot org>
Reviewed by: karels
MFC after: 1 week
Differential Revision: https://reviews.freebsd.org/D36557
95 lines
3.2 KiB
Groff
95 lines
3.2 KiB
Groff
.\" Copyright (c) 1983, 1991, 1993
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.\" The Regents of the University of California. All rights reserved.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\" 3. Neither the name of the University nor the names of its contributors
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.\" may be used to endorse or promote products derived from this software
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.\" without specific prior written permission.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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.\" SUCH DAMAGE.
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.\"
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.\" @(#)hosts.5 8.2 (Berkeley) 12/11/93
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.\" $FreeBSD$
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.\"
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.Dd September 15, 2022
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.Dt HOSTS 5
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.Os
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.Sh NAME
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.Nm hosts
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.Nd host name data base
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.Sh DESCRIPTION
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The
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.Nm
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file contains information regarding
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the known hosts on the network.
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It can be used in conjunction with DNS, and the NIS
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maps `hosts.byaddr' and `hosts.byname', as controlled by
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.Xr nsswitch.conf 5 .
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For each host a single line should be present
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with the following information:
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.Bd -unfilled -offset indent
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Internet address
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official host name
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aliases
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.Ed
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.Pp
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Items are separated by any number of blanks and/or
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tab characters.
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A ``#'' indicates the beginning of
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a comment; characters up to the end of the line are
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not interpreted by routines which search the file.
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.Pp
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This file provides a backup used when the name server
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is not running.
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For the name server, it is suggested that only a few addresses
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be included in this file.
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These include addresses for the local interfaces that
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.Xr ifconfig 8
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needs at boot time and a few machines on the local network.
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.Pp
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Network addresses are specified in either the conventional
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``.'' (dot) notation for IPv4 or colon hexadecimal notation for IPv6,
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as understood by the
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.Xr inet_pton 3
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routine
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from the Internet address manipulation library,
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.Xr inet 3 .
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Host names may contain any printable
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character other than a field delimiter, newline,
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or comment character.
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.Sh FILES
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.Bl -tag -width /etc/hosts -compact
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.It Pa /etc/hosts
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The
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.Nm
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file resides in
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.Pa /etc .
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.El
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.Sh SEE ALSO
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.Xr gethostbyname 3 ,
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.Xr inet 3 ,
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.Xr nsswitch.conf 5 ,
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.Xr ifconfig 8
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.Sh HISTORY
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The
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.Nm
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file format appeared in
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.Bx 4.1c .
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