Ntp update now

Ask Ubuntu is a question and answer site for Ubuntu users and developers. It only takes a minute to sign up. Connect and share knowledge within a single location that is structured and easy to search. The wake-up time is somewhere during Thus, I use the NTP service to update the time to the current time.

However, after startup, it still takes a couple of minutes until the time is updated, during which period I cannot work effectively with tar and make. UPDATE 2: I tried following the few suggestions that came in response to the 1st update, but nothing seems to actually do the job as required.

Here's what I tried:. Using the above, the machine still starts at However, when doing this from command line once logged in via ssh , the clock gets updated as soon as I invoke ntpdate. Last thing I did was to remove that from rc. This does update the clock as expected, and I get the true current time once the command prompt is available. However , this means that if the machine is turned on and no user is logged in, then the time never gets updates.

I can, of course, reinstall the ntp service so at least the clock is updated within a few minutes from startup, but then we're back at square 1. So, is there a reason why placing the ntpdate command in rc. Instead of ntpdate which is deprecated , use ntpd :. The -gq tells the ntp daemon to correct the time regardless of the offset g and exit immediately q after setting the time. Probably the ntp service is running, that's why ntpdate can't open the socket port UDP and connect to ntp server.

Use timedatectl systemd service unit to set the time. As others have pointed out the best solution is to instruct ntpd to ignore the panic threshold, which is seconds by default. You can configure the panic threshold in one of two ways:. So far this is essentially what others have recommended however there is one more step I think you should take. Install the fake-hwclock program:. With fake-hwclock installed your machine will not start up thinking it is all over again.

This means you can have a somewhat correct clock in case there are network issues when you boot up. NTPDate is probably erroring out on boot because ntpd is running on that socket. You could also uninstall ntpd all together apt-get remove ntp and add a cron script to use ntpdate every hour or so. Note that some current Ubuntu based systems don't even use the NTP service by default now.

On my Linux Mint 19 Ubuntu Since Therefore critical systems like time are managed through systemd. To find what service your system is using run something like. For TechJS on For myself on Ubuntu Interestingly, I logged into a Cheers to Prashant, who solved that issue.

I am running a raspbian debian wheezy on my raspberry pi, which doesn't have the hwclock. I found it handy to write a little script and run it after my internet interface is up, so that I am sure that the moment the network becomes available, the clock gets updated.

The ntpd algorithms discard sample offsets exceeding ms, unless the interval during which no [absolute value of] sample offset is less than ms exceeds s.

The first sample after that, no matter what the offset, steps the clock to the indicated time. In practice this reduces the false alarm rate where the clock is stepped in error to a vanishingly low incidence. Normally, ntpd exits if the offset exceeds the sanity limit, which is s by default. This can be turned off with the -g option:. If the sanity limit is set to zero, no sanity checking is performed and any offset is acceptable. This option overrides the limit and allows the time to be set to any value without restriction; however, this can happen only once.

After that, ntpd will exit if the limit is exceeded. This option can be used with the -q option. If you are behind a firewall, ntpd will never work, but ntpdate can work with the -u option. For example: ntpdate -u 0. If you can afford the time to wait whatever time it takes before your system gets in sync, you can use the ntp-wait command:. For Ubuntu and the like use: dpkg-reconfigure tzdata and select the right locale.

It keeps its value between restarts. Ubuntu Community Ask! Sign up to join this community. The best answers are voted up and rise to the top. Stack Overflow for Teams — Collaborate and share knowledge with a private group. Create a free Team What is Teams?

Learn more. Thank you. I can read msdn. Improve this question. Nick Dong Nick Dong 3, 6 6 gold badges 44 44 silver badges 73 73 bronze badges. Add a comment. Active Oldest Votes. Improve this answer. Dousti 3, 6 6 gold badges 33 33 silver badges 47 47 bronze badges. Domenico Zinzi Domenico Zinzi 10 10 silver badges 17 17 bronze badges. Solved my problem thanks.

I have a workstation that is domain joined so time settings "Are managed by your organisation" but is is being used away from the domain at the moment. Windows time service already started. It runs successfully without error. But time was not change. It make me crazy. Kayasax — Nick Dong. Any help? Kayasax Found solution as per blog. Once the installation is completed, NTP will be active by default. But if it is inactive, then use:.

It can be seen in the image below that different default servers system is synchronized time with. You can keep the default settings, but if you want to add another pool directive, then visit NTP pools and add the lines in the configuration file following the syntax mentioned below:. There is another modern tool to implement NTP on the latest Linux distributions. Synchronization of time is essential to determine some specific activity of a computer. Every modern system comes with some mechanism that automatically sets the time of the machine; NTP Network Time Protocol is one of them.

In this write-up, we learned how to sync time with the NTP server. I am a professional graphics designer with over 6 years of experience.