Create a Standalone ntp Server on Ubuntu 14.04

Network Time Protocol (NTP) UDP Port 123 is a networking protocol for time and date synchronisation between two or multiple computers.

We will be using Ubuntu 14.04 64 bit to build our ntp server
we will first install aptitude package manager for installing ntp services

sudo apt-get install aptitude -y

Then we'll install required packages for ntp daemon :

sudo aptitude -y install ntp

configure the NTP servers we are going to retrieve from. Edit the ntp.conf using the command:

sudo nano /etc/ntp.conf

This is something you should change to a country/Local instead of the Ubuntu pools. You can find this at the NTP Pool Project. I will be using the Indian pools so change the lines as necessary:

Add a fallback server. Ubuntu already provides their own fallback but we will use the current server’s time as the default. Otherwise you can specify any other server you know of:

# Use Ubuntu's ntp server as a fallback.

#server ntp.ubuntu.com

server 127.127.1.0

fudge 127.127.1.0 stratum 10

Restart the daemon service using the command:

sudo /etc/init.d/ntp restart

Monitor the log to see when it starts synchronising using the command:

tail -f /var/log/syslog

It nothing comes up (which usually happens to me), run the command ‘ntpq -p‘ and it should show you all the time servers you are currently connecting with. This is enough to know if it is synchronized for now.