This post details the setup of an NTP/Chrony server on Ubuntu 22.04 using a GPS receiver. It covers hardware requirements, package installations, GPSD configuration, firewall settings, and Chrony installation and configuration. Key functionalities include time synchronization and location sharing, all while ensuring secure incoming and outgoing network traffic.
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ESX Post Install – Enable NTP and SNMP
This post is the first in what I suspect will be a semi-long list of post-install hints and tips as I go through and start rebuilding my cluster as Vsphere 4. Hopefully I will learn a lot along the way... like for example the fact the ntp and snmp traffic is not allowed by default … Continue reading ESX Post Install – Enable NTP and SNMP
How to Configure NTP in a RHEL/CentOS Vmware Guest
HourglassSuccessful time keeping in a Virtual Machine can be a bit confusing. At times I have been told to use Vmware Tools to sync time between the Guest and the Host, and at time I have been advised to avoid this functionality and use NTP. The following information is direct from a VMwareKB article (updated, 4/16/2010) so I am going to follow their lead on this and use NTP exclusively.
Troubleshooting NTP on Linux
Using NTP to set the time on a linux server is not hard, however it can have a trick or two up its sleeve. In this example I was troubleshooting NTP on a RedHat 8 server (yes I know its old). Before we get started, the basics on NTP can be found here. A primer … Continue reading Troubleshooting NTP on Linux