synchronize ntp client

rizvi_iut · 11-30-2008, 10:58 PM

Hi,
I have no NTP server in my LAN. Now, is it possible to synchronize my Linux PC's with a public NTP server? If possible then how ? Besides, is it possible for Windows PC's too ?

Thank You

hans51 · 11-30-2008, 11:12 PM

1.
you did NOT mention what linux dist you use
I have opensuse and time server synchronization is simply done 8sing YAST to configure.

earlier I made the same manually configuring /etc/ntp.conf
making sure that ntpd is started upon server boot automatically

get a time server either googling or from
http://www.pool.ntp.org/
chose one geographically nearest to the server

2.
windows
YES timeserver also can be used on your windows PC
just have a look at your system config - again you did NOT mention what windows you use ... hence search a little in your own WIN box >> time/date
I did it before and know it works

3.
for future questions PLEASE be precise and provide exact details on your OS / version and dist

rizvi_iut · 12-03-2008, 10:15 PM

i use centos 5 and windows_xp in my LAN. after configuring /etc/ntp.conf how should i synchronize with the public server ?

gilead · 12-03-2008, 10:40 PM

Running your own server and syncing from that is cleaner, but you could just run ntpdate from each box from a cronjob each day. For example:

Code:

# crontab -l
# Synchronise the time at 5am every day
0 5 * * * /usr/sbin/ntpdate 165.86.4.100 &>/dev/null

hans51 · 12-08-2008, 05:07 PM

ntp has a daemon
ntpd !!
depending on details of YOUR linux there might be different ways to have ntpd started by default upon system boot - below a common way to do so:

there is NO cron job needed !!! the ntpd does that job for you.

everything configured in ntp.conf properly, you do

chkconfig ntpd on

now synchronize and then start your ntpd - belw lines in your shell / bash

ntpdate pool.ntp.org

/etc/init.d/ntpd start

check by using

/etc/init.d/ntpd status

gilead · 12-08-2008, 06:54 PM

The OP asked for methods for synchronising the time - ntpdate is often used on sites where ntpd is not wanted (like the one I'm working at now). Please put away your caps and exclamation marks...

hans51 · 12-08-2008, 09:54 PM

Quote:

Originally Posted by gilead

The OP asked for methods for synchronising the time - ntpdate is often used on sites where ntpd is not wanted (like the one I'm working at now). Please put away your caps and exclamation marks...

much of global success is a matter of tolerance! ( with exclamation mark )

you as senior member use uppercase for your "op" and instead of exclamation marks you use ...

at the end of your post.
hence there is NO difference in our both.ways to help - we BOTH provide the most accurate info the fastest way to help (Linux) newbies to an instant success. isn't it ?

besides those minor points you gave no additional helpful info to the op !?

but

I am glad you are going to successfully finish this thread until the op has used his ntp.conf and ntpd successfully.

Merry Christmas