Sponsored Content
Operating Systems Solaris How to configure NTP in Solaris/Windows/Linux environment...??? Post 302105981 by Tornado on Monday 5th of February 2007 09:04:06 PM
Old 02-05-2007
Why use windows as your networks ntp server ?
Why not setup you Solaris system(smc01) as the ntp server and sync all your servers off it ?

Not sure about Veritas Cluster, But with Sun Cluster, there is ntp.cluster template file you use for ntp and we use ntp.conf.cluster , not ntp.conf

In the ntp.conf.cluster you setup your nodes as peers to sync off each other using the private interconnects and set the ntp server to your time server on your network.

This is what we use on our Sun Cluster:
Code:
server my.ntp.server
#
# One of the "peers" should be "preferred" over the others.
#
peer clusternode1-priv prefer
peer clusternode2-priv

#
# Drift file (optional)
#
driftfile /var/ntp/ntp.drift

#
# Stats (optional)
#
filegen peerstats file peerstats type day enable
filegen loopstats file loopstats type day enable
filegen clockstats file clockstats type day enable

Code:
# ntpq -p
     remote           refid      st t when poll reach   delay   offset    disp
==============================================================================
*my.ntp.server yarrina.connect  3 u   74 1024  377     1.13   -0.392    1.94
 clusternode1-pr 0.0.0.0         16 -    - 1024    0     0.00    0.000 16000.0
+clusternode2-pr my.ntp.server  4 u  298 1024  376     0.43   -0.270   16.14
#

my.ntp.server is a Stratum 3 server, it syncs its time from our Internet providers Stratum 2 servers. Its ntp.conf looks like this:
Code:
server ntp.mel.connect.com.au
server ntp.syd.connect.com.au

broadcast 224.0.1.1 ttl 4
broadcastdelay  0.5

driftfile /etc/inet/ntp.drift

Code:
# ntpq -p
     remote           refid      st t when poll reach   delay   offset    disp
==============================================================================
 NTP.MCAST.NET   0.0.0.0         16 -    -   64    0     0.00    0.000 16000.0
*yarrina.connect ntp.sydney.nmi.  2 u   49  128  377     3.02    0.429    0.44
+warrane.connect ntp.melbourne.n  2 u   68  128  377    19.01    0.851    0.66
#

Strata NTP servers are arranged in a hierarchy of levels, called strata. A stratum-1 server is more accurate than a stratum-2 server. There are 15 strata, but only first three are usually used.

Stratum 1 is the highest hierarchical level and those servers are directly attached to highly accurate reference sources such as atomic clocks. This is backbone of NTP and regular servers should not interface with backbone directly, but using NTP servers on lower stratums.

Stratum 2 servers tend to operate out of academic institutions and large corporations. Those can be used by "regular" Internet-connected servers but any sizable organization usually has its own "local" NTP server(s) that interfaces with Stratum 2 servers.

Below Stratum 2 you will find local NTP server that most organizations on the Internet now have. Most organization use free xntp daemon, but some prefer using appliances. Appliances often provide alternative synchronization case of lost internet connectivity using GPS.
Tornado
 

10 More Discussions You Might Find Interesting

1. Linux

How to configure linux to receive snmp traps from a windows server?

Can anybody please tell me how to configure linux to receive snmp traps from a windows server? I am not able to receieve snmp traps on unix machines specifically linux and solaris. I have tried starting snmptrapd service on linux but it didn't work. Is there anything special that I have to do on... (2 Replies)
Discussion started by: iamtulipin
2 Replies

2. UNIX for Dummies Questions & Answers

configuring NTP in Solaris/Windows/Linux environment.

configuring NTP in Solaris/Windows/Linux environment. Can anybody please explain the below table to monitor NTP daemon status This contains many columns like remote,refid,st....various values corresponding to those columns If possible provide me any link to study about... (1 Reply)
Discussion started by: sgand
1 Replies

3. UNIX for Advanced & Expert Users

configuring NTP in Solaris/Windows/Linux environment.

Can anybody please explain the below table to monitor NTP daemon status This contains many columns like remote,refid,st....various values corresponding to those columns If possible provide me any link to study about these quantities clearly. It is very much required for my project please... (3 Replies)
Discussion started by: sgand
3 Replies

4. Solaris

Cannot configure NTP client

Hi, I am trying to configure NTP client on my Solaris server, but I am getting error like: Jan 13 10:53:33 SPOTS ntpdate: no server suitable for synchronization foundMy ntp.conf file: bash-3.00# pwd /etc/inet bash-3.00# bash-3.00# bash-3.00# cat ntp.conf # ident "@(#)ntp.client... (5 Replies)
Discussion started by: nypreH
5 Replies

5. AIX

Configure one host against two ntp servers for redundancy

Dears all is it possible to have two NTP servers in one host ? how i can configure them . please advice (5 Replies)
Discussion started by: thecobra151
5 Replies

6. UNIX for Dummies Questions & Answers

Samba setup in virtual server environment Windows/ Linux

I have a home network set up that consists of a few windows clients and 3 centos, and 1 suse client. These are all virtual machines, VMware Workstation. One centos vm is set to be the Samba server. Do I need Samba set up on the other Linux clients?I have no problem seeing the windows clients... (0 Replies)
Discussion started by: ktb231
0 Replies

7. HP-UX

Setting up NTP HP-UX clients from solaris NTP server

Hi I wonder if its possible to setup NTP clients running HP-UX o.s. from a solaris 10 NTP server? FR (3 Replies)
Discussion started by: fretagi
3 Replies

8. UNIX for Advanced & Expert Users

NTP server name and ip details on Linux/Solaris

Hi All, Where can I find all the NTP server names/ip addresses on Linux/Solaris systems. How can I grep these names/IP address from specific files from a specific OS (Linux/Solaris). I know on linux /etc/ntp.conf and /etc/ntp/ntp.conf on solaris contains these details. Whether I am right about... (4 Replies)
Discussion started by: sanzee007
4 Replies

9. Linux

Configure ntp server and Linux in oel 5.9

i want to configure machine1 as ntp server. this machine has oel 5.9 64 bit installed and this machine is not connected to internet neither there is any ntp server. there is another machine2 and i want to configure that as ntp client. plz do tell me that what lines do i add in /etc/ntp.conf... (0 Replies)
Discussion started by: rehantayyab82
0 Replies

10. Ubuntu

Install and configure ntp rpm on Ubuntu 13.10 version

Hello, I am new to ubuntu Server OS and so trying to setup and ntp service on couple of servers. I see ntp rpm is not installed. # dpkg --get-selections | grep -v deinstall | grep ntp ntpdate install # so I tried to installed ntp rpm using... (5 Replies)
Discussion started by: bobby320
5 Replies
ntp-wait(1)							   User Commands						       ntp-wait(1)

NAME
ntp-wait - Wait for ntpd to stabilize the system clock SYNOPSIS
ntp-wait [-flags] [-flag [value]] [--option-name[[=| ]value]] All arguments must be options. DESCRIPTION
ntp-wait will send at most num-tries queries to ntpd(8), sleeping for secs-between-tries after each status return that says ntpd(8) has not yet produced a synchronized and stable system clock. ntp-wait will do this quietly, unless the -v flag is provided. This can be useful at boot time, to delay the boot sequence until after ntpd -g has set the time. OPTIONS
-n number, --tries=number Number of times to check ntpd. This option takes an integer number as its argument. The default number for this option is: 100 The maximum number of times we will check ntpd to see if it has been able to synchronize and stabilize the system clock. -s secs-between-tries, --sleep=secs-between-tries How long to sleep between tries. This option takes an integer number as its argument. The default secs-between-tries for this option is: 6 We will sleep for secs-between-tries after each query of ntpd that returns "the time is not yet stable". -v, --verbose Be verbose. By default, ntp-wait is silent. With this option, ntp-wait will provide status information. -?, --help Display usage information and exit. -!, --more-help Pass the extended usage information through a pager. -v [{v|c|n --version [{v|c|n}]}] Output version of program and exit. The default mode is `v', a simple version. The `c' mode will print copyright information and `n' will print the full copyright notice. EXIT STATUS
One of the following exit values will be returned: 0 (EXIT_SUCCESS) Successful program execution. 1 (EXIT_FAILURE) The operation failed or the command syntax was not valid. 70 (EX_SOFTWARE) libopts had an internal operational error. Please report it to autogen-users@lists.sourceforge.net. Thank you. AUTHORS
Harlan Stenn NOTES
This document corresponds to version 4.2.8p13 of NTP. This manual page was AutoGen-erated from the ntp-wait option definitions. ntp (4.2.8p13) 20 Feb 2019 ntp-wait(1)
All times are GMT -4. The time now is 12:06 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy