837d69738b
Document `-d' and `-I'. Add a BUGS section noting that logging from UDP is an unauthenticated remote disk-filling service, and probably should be disabled by default in the absence of some sort of authentication.
139 lines
4.2 KiB
Groff
139 lines
4.2 KiB
Groff
.\" Copyright (c) 1983, 1986, 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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.\" @(#)syslogd.8 8.1 (Berkeley) 6/6/93
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.\" $Id$
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.\"
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.Dd October 12, 1995
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.Dt SYSLOGD 8
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.Os BSD 4.2
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.Sh NAME
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.Nm syslogd
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.Nd log systems messages
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.Sh SYNOPSIS
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.Nm syslogd
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.Op Fl dI
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.Op Fl f Ar config_file
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.Op Fl m Ar mark_interval
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.Op Fl p Ar log_socket
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.Sh DESCRIPTION
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.Nm Syslogd
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reads and logs messages to the system console, log files, other
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machines and/or users as specified by its configuration file.
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The options are as follows:
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.Bl -tag -width Ds
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.It Fl d
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Put
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.Nm syslogd
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into debugging mode. This is probably only of use to developers working on
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.Nm syslogd .
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.It Fl f
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Specify the pathname of an alternate configuration file;
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the default is
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.Pa /etc/syslog.conf .
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.It Fl I
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Do not log messages received in UDP packets.
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.It Fl m
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Select the number of minutes between ``mark'' messages;
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the default is 20 minutes.
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.It Fl p
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Specify the pathname of an alternate log socket;
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the default is
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.Pa /dev/log .
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.El
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.Pp
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.Nm Syslogd
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reads its configuration file when it starts up and whenever it
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receives a hangup signal.
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For information on the format of the configuration file,
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see
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.Xr syslog.conf 5 .
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.Pp
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.Nm Syslogd
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reads messages from the
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.Tn UNIX
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domain socket
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.Pa /dev/log ,
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from an Internet domain socket specified in
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.Pa /etc/services ,
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and from the special device
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.Pa /dev/klog
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(to read kernel messages).
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.Pp
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.Nm Syslogd
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creates the file
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.Pa /var/run/syslog.pid ,
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and stores its process
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id there.
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This can be used to kill or reconfigure
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.Nm syslogd .
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.Pp
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The message sent to
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.Nm syslogd
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should consist of a single line.
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The message can contain a priority code, which should be a preceding
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decimal number in angle braces, for example,
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.Sq Aq 5.
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This priority code should map into the priorities defined in the
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include file
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.Aq Pa sys/syslog.h .
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.Sh FILES
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.Bl -tag -width /var/run/syslog.pid -compact
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.It Pa /etc/syslog.conf
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The configuration file.
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.It Pa /var/run/syslog.pid
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The process id of current
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.Nm syslogd .
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.It Pa /dev/log
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Name of the
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.Tn UNIX
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domain datagram log socket.
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.It Pa /dev/klog
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The kernel log device.
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.El
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.Sh SEE ALSO
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.Xr logger 1 ,
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.Xr syslog 3 ,
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.Xr services 5 ,
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.Xr syslog.conf 5
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.Sh HISTORY
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The
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.Nm
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command appeared in
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.Bx 4.3 .
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.Sh BUGS
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The ability to log messages received in UDP packets is equivalent to
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an unauthenticated remote disk-filling service, and should probably be
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disabled by default. Some sort of
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.No inter- Ns Nm syslogd
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authentication mechanism ought to be worked out.
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