Helpful tips

What is Refid in NTPQ?

What is Refid in NTPQ?

The refid column refers to the NTP servers that the remote servers are connected to. Continuing, the when column refers to how long ago it was since the last time the server was polled. The poll column indicates how often the server will be polled, which is 64 seconds for most of the entries in the example screenshot.

What is Ntpdate?

ntpdate is a computer program used to quickly synchronize and set computers’ date and time by querying a Network Time Protocol (NTP) server. It is available for a wide variety of unix-like operating systems.

What does Refid mean?


Acronym Definition
REFID Reference Id

What is NTPQ command?

The ntpq command uses NTP mode 6 packets to communicate with the NTP server and can query any compatible server on the network which permits it. The ntpq command makes one attempt to retransmit requests, and will time-out requests if the remote host does not respond within a suitable time.

Is ntpdate deprecated?

2 Answers. ntpdate is deprecated as of September 2012; apparently ntpd now has the ability to do one-time updates if needed, and ntpdate is based on “long-neglected” ntpd code.

What is the use of ntpdate?

Ntpdate is a console utility that can be used as an NTP client in various Linux distros to synchronize the local time of a host with the global time on an NTP server.

How do I check my chrony status?

To check if chrony is synchronized, use the tracking, sources, and sourcestats commands. Run the chronyc tracking command to check chrony tracking. Alternatively you could run chronyc to display a chronyc> prompt, and then run the tracking command from the chronyc> prompt.

How reliable is NTP?

NTP can usually maintain time to within tens of milliseconds over the public Internet, and can achieve better than one millisecond accuracy in local area networks under ideal conditions. Asymmetric routes and network congestion can cause errors of 100 ms or more.