Xref ntpd(8), not NTP. Whitespace fixes.

This commit is contained in:
wiz 2001-04-05 11:53:11 +00:00
parent 96078f3a14
commit 57feeb4802

View File

@ -1,4 +1,4 @@
.\" $NetBSD: timed.8,v 1.8 1999/03/22 18:44:12 garbled Exp $
.\" $NetBSD: timed.8,v 1.9 2001/04/05 11:53:11 wiz Exp $
.\"
.\" Copyright (c) 1980, 1991 Regents of the University of California.
.\" All rights reserved.
@ -52,9 +52,9 @@ This
is a time server daemon and is normally invoked
at boot time from the
.Xr rc 8
file.
file.
It synchronizes the host's time with the time of other
machines in a local area network running
machines in a local area network running
.Nm "" .
These time servers will slow down the clocks of some machines
and speed up the clocks of others to bring them to the average network time.
@ -72,18 +72,18 @@ When
is started on a machine, it asks the master for the network time
and sets the host's clock to that time.
After that, it accepts synchronization messages periodically sent by
the master and calls
the master and calls
.Xr adjtime 2
to perform the needed corrections on the host's clock.
.Pp
It also communicates with
.Xr date 1
in order to set the date globally,
and with
and with
.Xr timedc 8 ,
a timed control program.
If the machine running the master crashes, then the slaves will elect
a new master from among slaves running with the
a new master from among slaves running with the
.Fl M
flag.
A
@ -93,7 +93,7 @@ running without the
or
.Fl F
flags will remain a slave.
The
The
.Fl t
flag enables
.Nm
@ -117,7 +117,7 @@ If permitted by the
flag, it will provide synchronization service on any attached networks
on which no current master server was detected.
Such a server propagates the time computed by the top-level master.
The
The
.Fl n
flag, followed by the name of a network which the host is connected to
(see
@ -128,7 +128,7 @@ Each time the
.Fl n
flag appears, that network name is added to a list of valid networks.
All other networks are ignored.
The
The
.Fl i
flag, followed by the name of a network to which the host is connected
(see
@ -140,7 +140,7 @@ flag appears, that network name is added to a list of networks to ignore.
All other networks are used by the time daemon.
The
.Fl n
and
and
.Fl i
flags are meaningless if used together.
.Pp
@ -155,14 +155,14 @@ If it finds masters on more than one network, it chooses one network
on which to be a "slave," and then periodically checks the other
networks to see if the masters there have disappeared.
.Pp
One way to synchronize a group of machines is to use an NTP daemon to
One way to synchronize a group of machines is to use an NTP daemon to
synchronize the clock of one machine to a distant standard or a radio
receiver and
receiver and
.Fl F Ar hostname
to tell its timed daemon to trust only itself.
.Pp
Messages printed by the kernel on the system console occur with
interrupts disabled.
interrupts disabled.
This means that the clock stops while they are printing.
A machine with many disk or network hardware problems and consequent
messages cannot keep good time by itself. Each message typically causes
@ -177,19 +177,19 @@ settings are often associated with
machines that looked for time masters on more than one network and eventually
chose to become a slave on the other network.
.Sh WARNINGS
If two or more time daemons, whether
If two or more time daemons, whether
.Nm "" ,
.Xr NTP ,
.Xr ntpd 8 ,
try to adjust the same clock, temporal chaos will result.
If both
If both
.Nm
and another time daemon are run on the same machine,
ensure that the
ensure that the
.Fl F
flag is used, so that
flag is used, so that
.Nm
never attempts to adjust the local clock.
.Pp
.Pp
The protocol is based on UDP/IP broadcasts. All machines within
the range of a broadcast that are using the TSP protocol must cooperate.
There cannot be more than a single administrative domain using the
@ -203,7 +203,7 @@ machines in the system log.
.It Pa /var/log/timed.log
tracing file for timed
.It Pa /var/log/timed.masterlog
log file for master timed
log file for master timed
.El
.Sh SEE ALSO
.Xr date 1 ,