mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-25 11:37:56 +00:00
248aee623c
configure FreeBSD so that various databases such as passwd and group can be looked up using flat files, NIS, or Hesiod. = Hesiod has been added to libc (see hesiod(3)). = A library routine for parsing nsswitch.conf and invoking callback functions as specified has been added to libc (see nsdispatch(3)). = The following C library functions have been modified to use nsdispatch: . getgrent, getgrnam, getgrgid . getpwent, getpwnam, getpwuid . getusershell . getaddrinfo . gethostbyname, gethostbyname2, gethostbyaddr . getnetbyname, getnetbyaddr . getipnodebyname, getipnodebyaddr, getnodebyname, getnodebyaddr = host.conf has been removed from src/etc. rc.network has been modified to warn that host.conf is no longer used at boot time. In addition, if there is a host.conf but no nsswitch.conf, the latter is created at boot time from the former. Obtained from: NetBSD
115 lines
3.8 KiB
Groff
115 lines
3.8 KiB
Groff
.\" Copyright (c) 1983, 1991, 1993
|
|
.\" 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.
|
|
.\"
|
|
.\" @(#)hosts.5 8.2 (Berkeley) 12/11/93
|
|
.\" $FreeBSD$
|
|
.\"
|
|
.Dd December 11, 1993
|
|
.Dt HOSTS 5
|
|
.Os BSD 4.2
|
|
.Sh NAME
|
|
.Nm hosts
|
|
.Nd host name data base
|
|
.Sh DESCRIPTION
|
|
The
|
|
.Nm hosts
|
|
file contains information regarding
|
|
the known hosts on the network.
|
|
It can be used in conjunction with DNS, and the NIS
|
|
maps `hosts.byaddr' and `hosts.byname', as controlled by
|
|
.Xr nsswitch.conf 5 .
|
|
For each host a single line should be present
|
|
with the following information:
|
|
.Bd -unfilled -offset indent
|
|
Internet address
|
|
official host name
|
|
aliases
|
|
.Ed
|
|
.Pp
|
|
Items are separated by any number of blanks and/or
|
|
tab characters. A ``#'' indicates the beginning of
|
|
a comment; characters up to the end of the line are
|
|
not interpreted by routines which search the file.
|
|
.Pp
|
|
When using the name server
|
|
.Xr named 8 ,
|
|
this file provides a backup used when the name server
|
|
is not running.
|
|
For the name server, it is suggested that only a few addresses
|
|
be included in this file.
|
|
These include addresses for the local interfaces that
|
|
.Xr ifconfig 8
|
|
needs at boot time and a few machines on the local network.
|
|
.Pp
|
|
This file may be created from the official host
|
|
data base maintained at the Network Information Control
|
|
Center
|
|
.Pq Tn NIC ,
|
|
though local changes may be required
|
|
to bring it up to date regarding unofficial aliases
|
|
and/or unknown hosts. As the data base maintained at
|
|
.Tn NIC
|
|
is incomplete, use of the name server is recommended for
|
|
sites on the
|
|
.Tn DARPA
|
|
Internet.
|
|
.Pp
|
|
Network addresses are specified in the conventional
|
|
``.'' (dot) notation using the
|
|
.Xr inet_addr 3
|
|
routine
|
|
from the Internet address manipulation library,
|
|
.Xr inet 3 .
|
|
Host names may contain any printable
|
|
character other than a field delimiter, newline,
|
|
or comment character.
|
|
.Sh FILES
|
|
.Bl -tag -width /etc/hosts -compact
|
|
.It Pa /etc/hosts
|
|
The
|
|
.Nm hosts
|
|
file resides in
|
|
.Pa /etc .
|
|
.El
|
|
.Sh SEE ALSO
|
|
.Xr gethostbyname 3 ,
|
|
.Xr nsswitch.conf 5 ,
|
|
.Xr ifconfig 8 ,
|
|
.Xr named 8
|
|
.Rs
|
|
.%T "Name Server Operations Guide for BIND"
|
|
.Re
|
|
.Sh HISTORY
|
|
The
|
|
.Nm
|
|
file format appeared in
|
|
.Bx 4.2 .
|