105 lines
3.4 KiB
Groff
105 lines
3.4 KiB
Groff
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.\" Copyright (c) 1985, 1991 The Regents of the University of California.
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.\" 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. All advertising materials mentioning features or use of this software
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.\" must display the following acknowledgement:
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.\" This product includes software developed by the University of
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.\" California, Berkeley and its contributors.
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.\" 4. 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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.\" @(#)aliases.5 6.5 (Berkeley) 5/10/91
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.\"
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.Dd May 10, 1991
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.Dt ALIASES 5
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.Os BSD 4
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.Sh NAME
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.Nm aliases
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.Nd aliases file for sendmail
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.Sh SYNOPSIS
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.Nm aliases
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.Sh DESCRIPTION
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This file describes user
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.Tn ID
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aliases used by
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.Pa /usr/sbin/sendmail .
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The file resides in
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.Pa /etc
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and
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is formatted as a series of lines of the form
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.Bd -filled -offset indent
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name: name_1, name2, name_3, . . .
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.Ed
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.Pp
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The
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.Em name
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is the name to alias, and the
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.Em name_n
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are the aliases for that name.
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Lines beginning with white space are continuation lines.
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Lines beginning with
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.Ql #
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are comments.
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.Pp
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Aliasing occurs only on local names.
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Loops can not occur, since no message will be sent to any person more than once.
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.Pp
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After aliasing has been done, local and valid recipients who have a
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.Dq Pa .forward
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file in their home directory have messages forwarded to the
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list of users defined in that file.
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.Pp
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This is only the raw data file; the actual aliasing information is
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placed into a binary format in the files
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.Pa /etc/aliases.dir
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and
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.Pa /etc/aliases.pag
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using the program
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.Xr newaliases 1 .
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A
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.Xr newaliases
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command should be executed each time the aliases file is changed for the
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change to take effect.
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.Sh SEE ALSO
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.Xr newaliases 1 ,
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.Xr dbm 3 ,
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.Xr sendmail 8
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.Rs
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.%T "SENDMAIL Installation and Operation Guide"
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.Re
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.Rs
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.%T "SENDMAIL An Internetwork Mail Router"
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.Re
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.Sh BUGS
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Because of restrictions in
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.Xr dbm 3
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a single alias cannot contain more than about 1000 bytes of information.
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You can get longer aliases by ``chaining''; that is, make the last name in
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the alias be a dummy name which is a continuation alias.
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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 4.0 .
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