Questions tagged [ntpdate]

ntpdate is a deprecated ntp client for unix/linux

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interpret ntpd configuration used on raspberry pi

I am still very new to the nptd program so my question should be relatively general. I understand that the program slowly adjusts device's clock rate and syncs to the server time through polling. In ...
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How to find a process that runs hourly

CentOS 7, set it up about 3 years ago, so I might not remember every decision I made... Once an hour, something does a time update. I don't have ntp installed, only ntpdate. Don't have chrony ...
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is there any option ntpq for the ntp server connectivity test like ntpdate -d command?

Is there any option ntpq for the ntp server connectivity test like the ntpdate -d command? ntpdate -d ntpserverip This command shows the suitable ntp server for synchronization. What the ...
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Can I use the IP of an internal private NTP service instead pool.ntp.org spublic service with ntpdate?

I am not so into Linux and I have the following problem syncronzing two Linux machine using ntpdate. I know that I can do it running this command: ntpdate pool.ntp.org that creats the timesync.sh ...
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I want to my ntpd update time more frequently and asap

I'm trying to config ntpserver and client.what should I do to ntpd sync time more frequently and asap? when I change the time in client manually and then restart ntpd service , after 16 s time is ...
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How can I use my local time as the only reference of `ntpd`?

I want to let my Linux device synchronize its local time with the local time of another Linux server without any other references. I don't care about the actual time. I want my fake time. Therefore I ...
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1answer
2k views

clockdiff versus ntpdate -q

I want to know the time difference between the clocks on two different hosts. I've found clockdiff and ntpdate -q both perform similar functions. Please provide some insight on the difference between ...
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1answer
143 views

Are ntpd and ntpdate both being run on my system?

I have a computer running ubuntu 14.04. I am running a process that is sensitive to time jumps, and I have noticed some time jumps have happened, on the order of 100s of milliseconds both forwards ...
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Determining default qualification thresholds for ntpstat

I have been looking into the ntpstat command, more specifically how it determines whether or not the clock is synchronized. From the man page, I see the following excerpt: ntpstat returns 0 if clock ...
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2answers
710 views

Why is my machine's time drifting so quickly?

I have an Ubuntu 14.04.4 LTS VM running under Vagrant and VirtualBox. When comparing its time to the server's I see things like this: $ ntpdate -q ntp.ubuntu.com server 91.189.94.4, stratum 2, offset ...
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688 views

Synchronize Time in Linux

I want to synchronize the time between my android device and a raspberry pi. My android is synchronized automatically from the internet ( GMT + 2). I used this code to get the ntp server. final ...
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1answer
483 views

How to use adjtimex

I have a Debian machine that at the time of configuration will have access to NTP servers. But once configured and in use, it will not have access to NTP servers. What are the steps to ensure that the ...
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1answer
6k views

NTP - fix massive offset

I've got a RHEL 5.4 and I'm synced to my NTP server .... I have managed to reduce the jitter to almost 0 with ntpq -q But then it came right back. The huge offset remains regardless of what I do. ...
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1k views

unable to install ntpdate on centos

I'm running centos 6, unable to get ntpdate working, what's wrong? ntpdate pool.ntp.org bash: ntpdate: command not found x yum install ntpdate Loaded plugins: fastestmirror, security Loading mirror ...
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Godaddy fails to properly configure NTP on their node server hosting my VPS [closed]

I have a few VPS servers with Godaddy and with every new server I contracted I had to ask them to set up NTP on the node hosting my container. They always did until now. It seems like their ...
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1k views

Explain ntpdate debugging output

May I know what is meant by "reference time" in the ntpdate -d output? reference time: d5cff417.1a961fff Tue, Sep 3 2013 7:37:27.103
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1answer
11k views

ntpdate command not found [only when using with cron]

I have a linux machine with ntpdate installed and it is working when i run it from my ssh terminal or from a shell script manually. However , when i add the shell script to crontab i get the error ...
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1answer
417 views

system clock is 5.5 ahead although ntp

I've checked configs and even installed ntp server, nothing seem to fix this, sudo dpkg-reconfigure tzdata Current default time zone: 'Asia/Tehran' Local time is now: Thu May 9 00:49:38 IRDT ...
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1answer
16k views

ntpdate[3912]: no server suitable for synchronization found

I've configured ntpd on a CentOs install with a simple /etc/ntp.conf with only 3 lines: server 0.pool.ntp.org server 1.pool.ntp.org server 2.pool.ntp.org server 192.168.1.1 Unfortunately, no matter ...
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151 views

Understanding time synchronization in Linux

My /etc/localtime on my Ubuntu gives my correct timezone - EAT which is UTC +3. The date command gives the time as 21:44:58 EAT which is about the correct time (I'm not concerned about accuracy to the ...
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2answers
13k views

linux “date -s” command not working to change date on a server

date +%T --set="12:19:06" 12:19:06 date Mon Nov 26 12:37:32 SAST 2012 date 112613232012 Mon Nov 26 13:23:00 SAST 2012 date Mon Nov 26 13:42:27 SAST 2012 I have tried many different forms of this ...
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15k views

Linux ntpd and ntpdate service

Running ntsysv on my CentOS terminal show both ntpd and ntpdate checked. Is it redundant to have both service to run at start-up?
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3k views

System time wrong after running ntpdate because DST ignored

When I run ntpdate, my system clock displays the time as an hour behind what it should be. I know that ntpdate does everything in UTC, so I'm guessing there's a timezone setting wrong and it's ...
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2answers
8k views

How inaccurate is my system clock on Unix?

Is there a user-mode command that will tell how inaccurate my system clock is according to NTP servers? There's the ntpdate command, but the man page doesn't say what the numbers mean. What are ...
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70k views

How to use ntpdate behind a proxy?

Is it possible to use ntpdate behind an HTTP proxy with authentication? In case it is not possible, are there any good alternatives?