How to sync time in linux LAN

Peace be upon you all
I have no time to spend with searching old answers so how i can synchoronize 3 linux server times.
In simple steps.
LVL 4
mukhtar2tAsked:
Who is Participating?
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

freaky_NLCommented:
You need to install ntpd and configure it. It quite simple actually.

You could also setup a cron job to run 'ntpdate -s eu.pool.ntp.org' every so often to sync the time. The daemon (ntpd) is the preferred way tho'.

You provide very little information on distribution and such, therefore I'll leave it up to you to search for docs on your distribution. Almost every distribution has docs on this and almost everyone handles configuration and installation differently
0
iamgibbonCommented:
command line interface guide to setting ntp servers in linux environment can be found here: http://www.linuxhomenetworking.com/wiki/index.php/Quick_HOWTO_:_Ch24_:_The_NTP_Server
hth.
0
Ultimate Tool Kit for Technology Solution Provider

Broken down into practical pointers and step-by-step instructions, the IT Service Excellence Tool Kit delivers expert advice for technology solution providers. Get your free copy now.

mukhtar2tAuthor Commented:
Hello freaky_NL
what is information you need to guide me
0
freaky_NLCommented:
Atleast knowing your distribution would be nice.
0
mukhtar2tAuthor Commented:
Linux main 2.6.9-22.ELsmp #1 SMP Mon Sep 19 18:32:14 EDT 2005 i686 i686 i386 GNU/Linux
0
suggestionstickCommented:
Hi

What Freaky_Nl is looking for is your distribution name for example: redhat enterprise linux 4 or debian sarge or fedora 6

The general ntp guideline is that you sync one of your linux servers against a public time server and then use this ntpd server to sync your other servers time.

Checkout http://www.pool.ntp.org/ for available time servers.

If you can supply us with a distribution we can give you a more detailed install guide, however I have listed a general conf for ntpd below. It's split into 2 sections one conf for the main time server and another for the 2 ntp clients.

a ntpd.conf for your main linux ntp server

# default restrictions
restrict default noquery notrust nomodify

# override the default restrictions here for your other 2  Linux server boxes
restrict  1.2.3.4 mask 255.255.255.255 nomodify  
restrict  1.2.3.5 mask 255.255.255.255 nomodify

# public NTP servers to sync with
server Public-timeserver1
server Public-timeserver2

restrict Public-timeserver1 noquery nomodify
restrict Public-timeserver2 noquery nomodify


# NTP drift file - used to keep track of your system clocks
# time deviation
driftfile /etc/ntp.drift

# NTP log file
logfile /var/log/ntp.log


example config file for your other linux boxes


# default restrictions
restrict default noquery notrust nomodify

# Permit all access over the loopback interface
restrict 127.0.0.1

# public NTP servers to sync with
server FQDN-of-your primary-ntp-server


restrict  FQDN-of-your primary-ntp-server noquery nomodify

# NTP drift file - used to keep track of your system clocks
# time deviation
driftfile /etc/ntp.drift

# NTP log file
logfile /var/log/ntp.log




Trev
0

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Linux

From novice to tech pro — start learning today.

Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.