The Network Time Protocol, is used to synchronize system clocks to precision time servers on the internet or locally connected devices such as a GPS.

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Best practice for setting time on local network using NTP

I have 13 computers in the office that I want to make sure the time is in sync. I thought of configuring a virtual server to be the NTP server of the local network. That NTP server will sync with the ...
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1answer
278 views

NTP symmetric mode

I'm configuring NTP symmetric modes. Say I have Peer A (192.168.101.1) and Peer B(192.168.101.2) and configure their ntp.conf as follows: # Peer A peer 192.168.101.2 server 127.127.1.0 fudge ...
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367 views

NTP synchroinzation waiting for a while after booting

According to the recommendation on Arch Wiki, I set my hardware clock to UTC. And here is the result of timedatectl status on my machine when just booted: Local time: Tue 2013-07-02 15:38:03 ...
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193 views

How to solve the problem of ntp “Unable to contact time server” from KDE?

I want to set date and time automatically but this error appears when I try to .. I'm using openSUSE, I tried different servers but it didn't work either, help please! It doesn't seem to be a ...
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1answer
215 views

How to set NTP tinker step (which unit)? and how to query?

One of the workaround for old CentOS/CentOS kernel (6.1-6.3) which may "Systems hang due to leap-second livelock." (quoting redhat), is to set tinker step in /etc/ntp.conf. Bug the documentation is ...
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113 views

script does not execute

I have rPi B+ running ArchLinux with kernel Linux comp001 3.18.6-2-ARCH #1 PREEMPT Sun Feb 8 09:43:43 MST 2015 armv6l GNU/Linux with Real Time Clock hardware RTC Pi. However, I would like to check if ...
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0answers
69 views

Linux Mint system clock is days ahead after an overnight laptop suspend

I'm a long-time Ubuntu user, who recently started trying out Linux Mint on a laptop. This is not a dual-boot setup, Mint is the only OS on the machine. When I suspend the laptop (i.e. close the ...
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80 views

Difference between chronyd and ntpd

What is the difference between chronyd and ntpd? I know that ntpd can gradually adjust the time so that it can converge gradually to the the reference clock. Can this be done with chrony?
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ntpd socket problem

Currently I have a C# program that queries my NTP server (CentOS 7) public static DateTime GetNetworkTime() { const string ntpServer = "192.168.10.48"; var ntpData = new byte[48]; ...
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How can I consistently tell OpenSUSE to refresh the clock / current time?

I use OpenSUSE in a VM and sometimes want to save the machine and get back to work later. I haven't had much success with hibernate or suspend, so I simply save the state of the machine and resume ...
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0answers
72 views

What causes ntpq refid CRYP when authentication is successful?

I have five servers that I'm configuring for production use based on a configuration we've recently tested. The servers are RHEL6 with NTP version 4.2.4p8@1.1612-o. Right now, though, I'm trying to ...
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74 views

NTP authentication failing with opcode 108

I'm trying to get NTP authentication working on a cluster of test servers and a couple clients. I've followed the instructions at ntp.org. To be honest, though, I'm not sure they are entirely clear ...
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1k views

NTP Problems - sntp: too many bad or lost packets

I need some help from you guys regarding NTP on Suse. I have a server, whose IP is 192.168.100.52, which is based on Suse Linux and here is my NTP conf file: server 192.168.100.11 iburst restrict ...
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39 views

systemd-timesyncd on Debian 8 (fails silently?)

I'm having troubles on a Debian 8 installation to get systemd to synchronise time properly. NTP has been enabled with timedatectl set-ntp true and systemctl status systemd-timesyncd reports: ● ...
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29 views

How do I install and configure NTP on CentOS 7 from source? (include/ntp_crypt.h errors)

I unpacked the .tar.gz file for the newest NTP. I installed the gcc compiler and libcap devel. I ran the ./configure command with various flags and options. I ran make check and found an error. The ...
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20 views

Suddenly ntpdate is synchronized that long time interval and no servers reachable

I set the ntpdate the local ntp server. Sometimes ntpd has "no servers reachable" in message logs than ntpdate is synchronized long time interval("time reset +17.412149 s"). Help me! How do i solve ...
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88 views

Do I need to stop NTP service for client or only the server for leap second bug in linux

I have a server with suse 11 sp1 which are connected to NTP server that is also of same version. How can prevent leap second bug from effecting the servers? Can stoping the NTP service prevent effects ...
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93 views

NTP setup on a Java application Linux server

In a farm of time sensitive Java application Linux servers, how should one configure NTP in the ntp.conf file? Would it be okay to point the server to four stratum 3 NTP servers (switches) that are ...