-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
On Wednesday 02 June 2004 08:41 pm, Mike Branda wrote:
> thank you for all the replies. I'll try the suggestions and get back to
> yall! a few current things....
>
> bill, I mis-stated that ntp does not have a man page....I had already
> tried "man ntp". that was the first step. usually I try to exhaust and
> learn up as much as I can about my question before I post so I can have
> a little bit of an idea how to try out response suggestions. when you
> type man ntp on my box this is the output:
>
> NTP(1) NTP(1)
>
>
>
> NAME
> NTP - Network Time Protocol
>
> SEE ALSO
> The NTP distribution does not include man pages. To learn
> more about the NTP protocol and this software, please
> install the xntp-doc package included in you SuSE Linux
> distribution.
Wow ... what distro are you running? Here's the first little bit of the man
page in FC2
- --------------------------------------
ntpd(1) ntpd(1)
NAME
ntpd - Network Time Protocol (NTP) daemon
SYNOPSIS
ntpd [ -aAbdgLmNPqx ] [ -c conffile ] [ -f driftfile ] [ -g ] [ -k
keyfile ] [ -l logfile ] [ -N high ] [ -p pidfile ] [ -r broadcast-
delay ] [ -s statsdir ] [ -t key ] [ -v variable ] [ -V variable ]
[ -T chroot_dir ] [ -U server_user ] [ -x ]
DESCRIPTION
The ntpd program is an operating system daemon which sets and main-
tains the system time of day in synchronism with Internet standard time
servers. It is a complete implementation of the Network Time Protocol
(NTP) version 4, but also retains compatibility with version 3, as
defined by RFC-1305, and version 1 and 2, as defined by RFC-1059 and
RFC-1119, respectively. ntpd does most computations in 64-bit float-
ing point arithmetic and does relatively clumsy 64-bit fixed point
operations only when necessary to preserve the ultimate precision,
about 232 picoseconds. While the ultimate precision, is not achievable
with ordinary workstations and networks of today, it may be required
with future gigahertz CPU clocks and gigabit LANs.
HOW NTP OPERATES
The ntpd program operates by exchanging messages with one or more con-
figured servers at designated poll intervals. When started, whether for
the first or subsequent times, the program requires several exahanges
from the majority of these servers so the signal processing and mitiga-
tion algorithms can accumulate and groom the data and set the clock. In
order to protect the network from bursts, the initial poll interval for
each server is delayed an interval randomized over 0-16s. At the
default initial poll interval of 64s, several minutes can elapse before
the clock is set. The initial delay to set the clock can be reduced
using the iburst keyword with the server configuration command, as
described on the Configuration Options page.
Most operating systems and hardware of today incorporate a time-of-year
(TOY) chip to maintain the time during periods when the power is off.
When the machine is booted, the chip is used to initialize the operat-
ing system time. After the machine has synchronized to a NTP server,
the operating system corrects the chip from time to time. In case there
is no TOY chip or for some reason its time is more than 1000s from the
server time, ntpd assumes something must be terribly wrong and the
only reliable action is for the operator to intervene and set the clock
by hand. This causes ntpd to exit with a panic message to the system
- --------------------------------------
... and there was quite a bit more after this.
Bill
- --
http://cannaday.us (genealogy)
http://organic-earth.com (organic gardening)
Uptimes below for the machines that created / host these sites.
21:25:00 up 4 days, 21:22, 3 users, load average: 0.41, 0.26, 0.15
21:16:00 up 28 days, 5:17, 4 users, load average: 0.00, 0.00, 0.00
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.2.4 (GNU/Linux)
iD8DBQFAvn6NSvjcx4uv21sRAleiAJ9bt7lj9uaSjaeC3cXpHf6V9ofoKgCeOcuT
zhBhLTc4CctgRia0WK6WQOM=
=u1Gi
-----END PGP SIGNATURE-----
-----------------------------------------------------------------------
This list is provided as an unmoderated internet service by Networked
Knowledge Systems (NKS). Views and opinions expressed in messages
posted are those of the author and do not necessarily reflect the
official policy or position of NKS or any of its employees.
This archive was generated by hypermail 2.1.3 : Fri Aug 01 2014 - 20:08:00 EDT