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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323 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 127.127....
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1answer
406 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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1answer
427 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
36 views

how to forward ntp traffic to default gateway instead of vpn tunnel

I have a small Raspberry Pi server connected to an openvpn provider, used as a VPN gateway. Almost everything works fine with the following iptables rules: iptables -t nat -A POSTROUTING -o tun0 -j ...
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310 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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1answer
130 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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74 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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86 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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31 views

UTC Incorrect while RTC Okay

I have installed Debian 8 standard edition on my mini-pc, and usually found the following kernel message [146262.743546] INFO: rcu-sched detected stalls on CPUs/tasks: {} (detected by 0, t 15227 ...
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387 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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141 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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116 views

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]; ntpData[...
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65 views

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
120 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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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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33 views

ntpq shows my NTP version as 4.2.6p5@1.2349-o

ntpq shows my NTP version as 4.2.6p5@1.2349-o Can someone explain what the suffix of @1.2349-o (especially the -o) means? $ ntpq -c rv associd=0 status=4615 leap_add_sec, sync_ntp, 1 event, ...
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13 views

Ubuntu as a Yun ntp server: broadcast issues

I have an Ubuntu server to use as an ntp server for Yuns. I am having issues broadcasting with my linksys (BEFW11S4) router to my Yuns. Optimally: I need this to provide ntp service to Yuns ...
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14 views

ntpd -gq exiting with exit code 124

When I execute timeout ntpd -gq on ntp client machine, I got exit code 124. I executed using strace also #strace timeout 30 ntpd -gq it is getting stuck at the following point. Only few lines: ...
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22 views

ntpd and authentication why doens't work?

I want to try ntpd authentication using ssl and GQ scheme but failed (IFF also failed). I did those steps server is called slackware32,and client slack64 port 123 udp and tcp opened on both machines. ...
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68 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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28 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 ...