Gentoo Archives: gentoo-user

From: Pandu Poluan <pandu@××××××.info>
To: gentoo-user@l.g.o
Subject: Re: [gentoo-user] Fine Tuning NTP Server
Date: Fri, 10 May 2013 12:28:15
Message-Id: CAA2qdGUJa9H1kDTsb8oFBwDi7TwpQfotVeQQi4W3HH0PhUwpGg@mail.gmail.com
In Reply to: Re: [gentoo-user] Fine Tuning NTP Server by Andrea Conti
1 On May 10, 2013 5:23 PM, "Andrea Conti" <alyf@××××.net> wrote:
2 >
3 > Hello,
4 >
5 > > server tick.nrc.ca minpoll 64 maxpoll 1024 iburst prefer
6 >
7 > Ouch! minpoll and maxpoll should be specified as the log2 of the actual
8 > value, i.e. 6 and 10. Those are the defaults anyway.
9 >
10 > > disable auth
11 > > broadcastclient
12 > > server ntp.server.com prefer
13 >
14 > This looks fine to me; although configuring a broadcast association when
15 > your clients also have a unicast association to the same server seems a
16 > bit pointless, this should not cause any harm.
17 >
18 > I think you should first try to fix your server config and see if
19 > getting a proper sync on the server also solves the problem with the
20 > clients.
21 >
22 > > As for /etc/conf.d/ntpd, we have set nothing. To be honest I did not
23 > > even know the file
24 > > existed till you mentioned it:
25 > >
26 > > NTPD_OPTS="-u ntp:ntp"
27 >
28 > That is where you put the commandline options you want ntpd to be
29 > started with.
30 >
31 > > I would have liked to be better prepared for this but the gentoo wiki
32 > > page has been down for a few weeks now. We are not looking for
33 > > microsecond synchronization however, down to the second would be nice!
34 >
35 > I doubt you can consistently achieve microsecond-level synchronization
36 > with NTP ;)
37 >
38 > The official documentation of the ntp suite [1] is a good source of
39 > information; the man pages of ntpd and ntp.conf are also quite
40 > extensive, albeit a bit terse.
41 >
42 > andrea
43 >
44 > [1] http://www.eecis.udel.edu/~mills/ntp/html/index.html
45 >
46 >
47 >
48
49 Many thanks Andrea!
50
51 Although I'm not the original poster, but within the next couple of months,
52 me & my team will have to implement something similar. Your reply is a good
53 reference for us!
54
55 Again, thank you!
56
57 Rgds,
58 --

Replies

Subject Author
Re: [gentoo-user] Fine Tuning NTP Server Nick Khamis <symack@×××××.com>