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84 lines
3.0 KiB
Groff
Executable File
84 lines
3.0 KiB
Groff
Executable File
.\" 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. 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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.\" @(#)tftpd.8 8.1 (Berkeley) 6/4/93
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.\" $FreeBSD: src/libexec/tftpd/tftpd.8,v 1.15 2001/07/15 07:53:42 dd Exp $
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.\"
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.Dd June 10, 2020
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.Dt KDUMPD 8
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.Os
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.Sh NAME
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.Nm kdumpd
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.Nd Mac OS X remote kernel core dump server
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.Sh SYNOPSIS
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.Nm /usr/libexec/kdumpd
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.Op Ar directory
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.Sh DESCRIPTION
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.Nm Kdumpd
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is a server which receives
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kernel states in the form of
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a core dump from a remote
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Mac OS X machine.
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The
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.Tn kdumpd
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server operates
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on UDP port 1069, although this
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may be configurable in the future.
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The server should be started by
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.Xr launchctl 1 .
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.Pp
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The server should have the user ID
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with the lowest possible privilege,
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usually the user "nobody".
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.Pp
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By default the server stores kernel cores
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in the directory
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.Pa /var/tmp/PanicDumps .
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The directory needs to already exist for kdumpd
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to save core dumps.
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.Pp
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The server returns an EEXIST error
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to the remote kernel if it receives a
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request for an existing file - i.e.
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only new files can be created. The server
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also disallows path specifications in the
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incoming file name.
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.Sh HISTORY
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The
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.Nm
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command is based on Berkeley
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.Xr tftpd 8 ,
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by way of FreeBSD, with several modifications.
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.Sh SEE ALSO
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.Xr launchd 8 ,
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.Xr launchctl 1 ,
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.Xr launchd.plist 5
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