freebsd-skq/usr.sbin/syslogd/syslogd.8
pst 71d7e65562 Bring in some fixes from NetBSD and re-hack our syslogd to be option-compatible
with theirs (change the -I option to -s (but leave -I in for backwards compat.)
Also eliminate an make sane some magic numbers, and fix a small bug where we'd
send to an unopened socket.

Reviewed by:	wollman
Obtained from:	NetBSD
1996-07-22 16:35:50 +00:00

140 lines
4.3 KiB
Groff

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.\" @(#)syslogd.8 8.1 (Berkeley) 6/6/93
.\" $Id: syslogd.8,v 1.3 1996/05/20 17:10:03 wollman Exp $
.\"
.Dd October 12, 1995
.Dt SYSLOGD 8
.Os BSD 4.2
.Sh NAME
.Nm syslogd
.Nd log systems messages
.Sh SYNOPSIS
.Nm syslogd
.Op Fl \&dI
.Op Fl f Ar config_file
.Op Fl m Ar mark_interval
.Op Fl p Ar log_socket
.Sh DESCRIPTION
.Nm Syslogd
reads and logs messages to the system console, log files, other
machines and/or users as specified by its configuration file.
The options are as follows:
.Bl -tag -width Ds
.It Fl d
Put
.Nm syslogd
into debugging mode. This is probably only of use to developers working on
.Nm syslogd .
.It Fl f
Specify the pathname of an alternate configuration file;
the default is
.Pa /etc/syslog.conf .
.It Fl s
Operate in secure mode. Do not open a UDP socket to listen for log message
from remote machines.
.It Fl m
Select the number of minutes between ``mark'' messages;
the default is 20 minutes.
.It Fl p
Specify the pathname of an alternate log socket;
the default is
.Pa /dev/log .
.El
.Pp
.Nm Syslogd
reads its configuration file when it starts up and whenever it
receives a hangup signal.
For information on the format of the configuration file,
see
.Xr syslog.conf 5 .
.Pp
.Nm Syslogd
reads messages from the
.Tn UNIX
domain socket
.Pa /dev/log ,
from an Internet domain socket specified in
.Pa /etc/services ,
and from the special device
.Pa /dev/klog
(to read kernel messages).
.Pp
.Nm Syslogd
creates the file
.Pa /var/run/syslog.pid ,
and stores its process
id there.
This can be used to kill or reconfigure
.Nm syslogd .
.Pp
The message sent to
.Nm syslogd
should consist of a single line.
The message can contain a priority code, which should be a preceding
decimal number in angle braces, for example,
.Sq Aq 5.
This priority code should map into the priorities defined in the
include file
.Aq Pa sys/syslog.h .
.Sh FILES
.Bl -tag -width /var/run/syslog.pid -compact
.It Pa /etc/syslog.conf
The configuration file.
.It Pa /var/run/syslog.pid
The process id of current
.Nm syslogd .
.It Pa /dev/log
Name of the
.Tn UNIX
domain datagram log socket.
.It Pa /dev/klog
The kernel log device.
.El
.Sh SEE ALSO
.Xr logger 1 ,
.Xr syslog 3 ,
.Xr services 5 ,
.Xr syslog.conf 5
.Sh HISTORY
The
.Nm
command appeared in
.Bx 4.3 .
.Sh BUGS
The ability to log messages received in UDP packets is equivalent to
an unauthenticated remote disk-filling service, and should probably be
disabled by default. Some sort of
.No inter- Ns Nm syslogd
authentication mechanism ought to be worked out.