On 19/11/13 09:06, Brian Inglis wrote:
On 2013-11-19 00:55, David Woolley wrote:
On 19/11/13 06:05, [email protected] wrote:
But I have a question,how can I set this value,I just use it in a
LAN to Synchonize the time in the LAN.So is that a stand-alone
clients and servers.If it is ,which command should I use to change
this value in LINUX OS.
In /etc/ntpd.conf, or whatever your OS calls that file.
Note that ntpd was not really designed for use without a reference clock.
...at the top of the network time hierarchy: stratum 1.
It was designed for use with local and remote network time servers at all
lower stratum levels; evident in the default control settings.
It was designed for use with local secondary servers (and physically
local reference clock driven ones). As I understand it, though, the
local clock driver was first introduced as a mechanism for distributing
time introduced from a stratum 0 source but bypassing ntpd and going
direct to the OS. Use as a don't invalidate the downstream time hack, I
think, came later.
The most important thing, though, is there should be only one ultimate
source of time for any ntpd network. Having two free running candidates
is a recipe for disaster.
If you are careful, you can do so, but it is easy to create
configurations
that behave badly.
...and hard to create good configurations without reading and understanding
the docs, sometimes the code, and possibly also the book.
But no-one does; they just use the cookbook solutions in the packages.
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