NTP

Network Time Protokoll

download für wind00zen: http://www.meinberg.de/german/sw/ntp.htm

on Debian:

apt-get install ntpdate (client) and/or ntp (server)

some public servers for .de

server ptbtime1.ptb.de
server ptbtime2.ptb.de
server ptbtime3.ptb.de

Starting NTPD

In Solaris 9 (and probbly a lot of other 8nix servers) you can just...

/etc/init.d/xntpd start

If you want ntp to start on boot just link the above to rc3 ie

ln -s /etc/init.d/xntpd /etc/rc3.d/S99ntp

In Solaris 10 NTPD is a service (alavible but disabled by default) so start it with

svcadm enable network/ntp

or restart it after making chnage to the config like:

svcadm resnetwork/ntp

ntp.conf

A basic ntp conf (this is one i use on solaris boxes works with Sol 9 and 10) the ntp servers below are just a few that are publicly avalible.

# ident "@(#)ntp.client 1.3     00/07/17 SMI"
#
# /etc/inet/ntp.client
#
# An example file that could be copied over to /etc/inet/ntp.conf; it
# provides a configuration for a host that passively waits for a server
# to provide NTP packets on the ntp multicast net.
#

#multicastclient 224.0.1.1
server chronos.csr.net
server 81.168.77.149
server ntp2d.mcc.ac.uk

More ntp Servers

for a uptodate list of servers go to his page

Stratum 1 NTP Time Servers

NTP Server Hostname	IP Address	Use DNS	Location	NTP Server Synchronisation
chronos.csr.net	194.35.252.7	Yes	Computing Systems Research Ltd. UK	NTP V4 primary (Odetics GPS), Sun/Sparc Solaris 2.6
ntp.my-inbox.co.uk	81.168.77.149	No	Falmouth, Cornwall, UK	NTP V4.2.0 primary (MSF Radio Clock Receiver), Trustix Linux

 

Stratum 2 NTP Time Servers

NTP Server Hostname	IP Address	Use DNS	Location	NTP Server Synchronisation
ntp2.sandvika.net	194.164.127.6	No	Telehouse Europe, London E14 UK	NTP V4 secondary Sun UltraSPARC Solaris 8
ntp2d.mcc.ac.uk	130.88.203.12	Yes	University of Manchester, Manchester, UK	NTP secondary (S2), SGI/Irix
ntp2c.mcc.ac.uk	130.88.200.4	Yes	University of Manchester, Manchester, UK	NTP secondary (S2), PC/FreeBSD
ntp.exnet.com	194.207.34.9	Yes	ExNet Ltd, London, UK	NTP secondary (stratum 2), Sun-4/Unix
audaxsystems.co.uk	193.201.200.83	Yes	Interhouse London E14 UK	NTP V4, SuSE 9.0 (Stratum 1)
ntp1.sandvika.net	194.164.127.5	No	Telehouse Europe, London E14 UK	NTP V4 secondary Sun UltraSPARC Solaris 8
ntp.cis.strath.ac.uk		Yes	University of Strathclyde, Glasgow, UK	NTP V4 secondary
ntp0.sandvika.net	194.164.127.4	No	Telehouse Europe, London E14 UK	NTP V4 secondary Sun UltraSPARC Solaris 8

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• NTP Server - time synchronization from Elproma