Go Premium for a chance to win a PS4. Enter to Win

x
?
Solved

ntp client not working on - while server running fine

Posted on 2013-06-19
7
Medium Priority
?
730 Views
Last Modified: 2013-06-28
Hi All,

I am facing issues while configuring ntp client - my server running fine but when i am configuring

ntp client on my client machine its not working - tell me what could be the possible cause and how to troubleshoot it?
0
Comment
Question by:apunkabollywood
7 Comments
 
LVL 38

Assisted Solution

by:Gerwin Jansen, EE MVE
Gerwin Jansen, EE MVE earned 450 total points
ID: 39259014
Hi, could be firewall related. Are you running a physical or virtual Linux server? You have to make sure port 123 is allowed through the firewall.

What error do you get from your ntp client?
0
 
LVL 4

Assisted Solution

by:apreed
apreed earned 150 total points
ID: 39259025
How do you know the client is not working? Any errors or logs? What NTP server is it configured with? Can you use the "nc" command to see the NTP server on UDP port 123?
0
 
LVL 6

Accepted Solution

by:
xeroxzerox earned 600 total points
ID: 39259029
hi,

Make sure the following line exists in /etc/ntp.conf

server ntp.server.com  {you can also try with IPaddress like this}
server 192.168.X.X
 
#restart ntp service

Update your firewall settings, open /etc/sysconfig/iptables.
Add the following line

-A RH-Firewall-1-INPUT -s 192.168.X.X/24 -m state --state NEW -p udp --dport 123 -j ACCEPT

restart ntpd service
service iptables save
0
Configuration Guide and Best Practices

Read the guide to learn how to orchestrate Data ONTAP, create application-consistent backups and enable fast recovery from NetApp storage snapshots. Version 9.5 also contains performance and scalability enhancements to meet the needs of the largest enterprise environments.

 

Author Comment

by:apunkabollywood
ID: 39263200
we have no firewall enabled and servers ntp working fine but still on client side it dosent give any output of ntpq -p - no strange logs too any other way to find the issue behind this ?
0
 
LVL 38

Assisted Solution

by:Gerwin Jansen, EE MVE
Gerwin Jansen, EE MVE earned 450 total points
ID: 39264491
If you haven't already try: service ntpd restart and then: ntpq -pd
0
 
LVL 3

Assisted Solution

by:rajeev2353
rajeev2353 earned 300 total points
ID: 39265394
hi

if you are using to  dhcp server and client connect to dhcp

please enter the some line in dhcp.conf file

#vi /etc/dhcp.conf
option ntp-servers              ntp server ip;

save this file and restart the service

or if you are not using dhcp server then go to client system
click to time & date then click internet zone and enter the ntp server ip and update it.
0
 

Author Closing Comment

by:apunkabollywood
ID: 39285287
Thank you all and it works some problem was with DNS too.
0

Featured Post

[Webinar] Cloud and Mobile-First Strategy

Maybe you’ve fully adopted the cloud since the beginning. Or maybe you started with on-prem resources but are pursuing a “cloud and mobile first” strategy. Getting to that end state has its challenges. Discover how to build out a 100% cloud and mobile IT strategy in this webinar.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

1. Introduction As many people are interested in Linux but not as many are interested or knowledgeable (enough) to install Linux on their system, here is a safe way to try out Linux on your existing (Windows) system. The idea is that you insta…
The purpose of this article is to demonstrate how we can upgrade Python from version 2.7.6 to Python 2.7.10 on the Linux Mint operating system. I am using an Oracle Virtual Box where I have installed Linux Mint operating system version 17.2. Once yo…
Connecting to an Amazon Linux EC2 Instance from Windows Using PuTTY.
How to Install VMware Tools in Red Hat Enterprise Linux 6.4 (RHEL 6.4) Step-by-Step Tutorial
Suggested Courses
Course of the Month6 days, 7 hours left to enroll

783 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question